https://www.coastalwiki.org/w/index.php?title=Minamata_disease&feed=atom&action=historyMinamata disease - Revision history2024-03-29T06:30:29ZRevision history for this page on the wikiMediaWiki 1.31.7https://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=76111&oldid=prevDronkers J at 16:35, 5 November 20192019-11-05T16:35:51Z<p></p>
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</table>Dronkers Jhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=57533&oldid=prevDaphnisd at 14:21, 20 March 20132013-03-20T14:21:21Z<p></p>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|AuthorFullName=Daphnis De Pooter</ins></div></td></tr>
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</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33587&oldid=prevDaphnisd at 07:30, 31 August 20092009-08-31T07:30:00Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the <del class="diffchange diffchange-inline">[[</del>bay<del class="diffchange diffchange-inline">]]</del>. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by [[anoxic]] bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by [[anoxic]] bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.</div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
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</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33586&oldid=prevDaphnisd at 07:28, 31 August 20092009-08-31T07:28:55Z<p></p>
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<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families. </del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Tomokos hand.jpg|thumb|right|170px|A victim of Minamata disease<div style="text-align: center;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Tomokos hand.jpg|thumb|right|170px|A victim of Minamata disease<div style="text-align: center;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div>]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div>]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td></tr>
</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33585&oldid=prevDaphnisd at 07:28, 31 August 20092009-08-31T07:28:40Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Tomokos hand.jpg|thumb|right|170px|A victim of Minamata disease<div style="text-align: center;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Tomokos hand.jpg|thumb|right|170px|A victim of Minamata disease<div style="text-align: center;"></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></div>]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td></tr>
</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33584&oldid=prevDaphnisd at 07:27, 31 August 20092009-08-31T07:27:51Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 07:27, 31 August 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Image:Tomokos hand.jpg|thumb|right|170px|A victim of Minamata disease<div style="text-align: center;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involved the use of large quantities of [[mercury]], which were discarded into the [[bay]]. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivors were left with severe permanent disabilities. Fishing was banned by 1957 and with that, the epidemic was stopped. It took however until 1959 to prove that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by [[anoxic]] bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by [[anoxic]] bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref>.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><P></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><BR></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><P></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10" >Line 10:</td>
<td colspan="2" class="diff-lineno">Line 14:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Mercury]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Mercury]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><P></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><BR></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><P></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==References==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==References==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><references/></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><references/></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Coastal and marine pollution]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Coastal and marine pollution]]</div></td></tr>
<!-- diff cache key wiki:diff::1.12:old-33582:rev-33584 -->
</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33582&oldid=prevDaphnisd at 07:21, 31 August 20092009-08-31T07:21:04Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 07:21, 31 August 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, or [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes <del class="diffchange diffchange-inline">involve </del>the use of large quantities of mercury, which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the <del class="diffchange diffchange-inline">survivers </del>were left with severe permanent disabilities. Fishing was banned by 1957, <del class="diffchange diffchange-inline">which stopped </del>the epidemic. It took however until 1959 to <del class="diffchange diffchange-inline">show </del>that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<del class="diffchange diffchange-inline">. </del><ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes <ins class="diffchange diffchange-inline">involved </ins>the use of large quantities of <ins class="diffchange diffchange-inline">[[</ins>mercury<ins class="diffchange diffchange-inline">]]</ins>, which were discarded into the <ins class="diffchange diffchange-inline">[[</ins>bay<ins class="diffchange diffchange-inline">]]</ins>. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the <ins class="diffchange diffchange-inline">survivors </ins>were left with severe permanent disabilities. Fishing was banned by 1957 <ins class="diffchange diffchange-inline">and with that</ins>, the epidemic <ins class="diffchange diffchange-inline">was stopped</ins>. It took however until 1959 to <ins class="diffchange diffchange-inline">prove </ins>that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref><ins class="diffchange diffchange-inline">. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by anoxic bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<del class="diffchange diffchange-inline">.</del><ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by <ins class="diffchange diffchange-inline">[[</ins>anoxic<ins class="diffchange diffchange-inline">]] </ins>bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref><ins class="diffchange diffchange-inline">.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td></tr>
</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=33581&oldid=prevDaphnisd at 07:17, 31 August 20092009-08-31T07:17:47Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 07:17, 31 August 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
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<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, <del class="diffchange diffchange-inline">aka </del>[[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, <ins class="diffchange diffchange-inline">or </ins>[[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involve the use of large quantities of mercury, which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivers were left with severe permanent disabilities. Fishing was banned by 1957, which stopped the epidemic. It took however until 1959 to show that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay. <ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involve the use of large quantities of mercury, which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from fishing products. By then 2000 people were affected, 43 died and 700 of the survivers were left with severe permanent disabilities. Fishing was banned by 1957, which stopped the epidemic. It took however until 1959 to show that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay. <ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td></tr>
</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=31979&oldid=prevDaphnisd at 13:37, 28 July 20092009-07-28T13:37:51Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:37, 28 July 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l13" >Line 13:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><references/></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><references/></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Coastal and marine pollution]]</ins></div></td></tr>
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</table>Daphnisdhttps://www.coastalwiki.org/w/index.php?title=Minamata_disease&diff=31978&oldid=prevDaphnisd at 13:31, 28 July 20092009-07-28T13:31:06Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:31, 28 July 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, aka [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Minamata disease, aka [[methylmercury]] poisoning, was recognized in 1953 among the inhabitants of Minamata Bay in southwestern Kyushu, Japan. It occurred mostly among fishermen and their families.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involve the use of large quantities of mercury, which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from <del class="diffchange diffchange-inline">fish </del>products. By then 2000 people were affected, 43 died and 700 of the survivers were left with severe permanent disabilities. Fishing was banned by 1957, which stopped the epidemic. It took however until 1959 to show that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay. <ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A factory located on the bay started producing vinyl chloride and actaldehyde in 1952. Both production processes involve the use of large quantities of mercury, which were discarded into the bay. The illness first appeared in 1953, but it took until 1956 to diagnose is as metal poisoning from <ins class="diffchange diffchange-inline">fishing </ins>products. By then 2000 people were affected, 43 died and 700 of the survivers were left with severe permanent disabilities. Fishing was banned by 1957, which stopped the epidemic. It took however until 1959 to show that mercury was the toxic element involved, and until 1960 to prove that the source was the factory effluent which was discharged directly into the bay. <ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by anoxic bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury.<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In addition to the methylmercury produced by anoxic bacteria, 5% of the mercury effluent form the factory was already in the form of methylmercury. During the investigations of 1959 it was shown that the sediments contained 200 ppm mercury, bivalves 10-39 ppm ([[dry weight]]), and fish in the bay contained 10-55 ppm (dry weight) of mercury, most of it in the form of methylmercury.<ref name="cl">Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref></div></td></tr>
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</table>Daphnisd