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Accord on Global Mercury Limits
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After an all-night session that capped 4 years of negotiations, delegates from 140 countries agreed on 19 January to limit mercury pollution. The Minamata Convention¡ªnamed for a Japanese city where mercury poisoning injured or killed thousands of people¡ª mandates the phase-out of mercury in some batteries, fluorescent lamps, cosmetics, and medical devices by 2020.

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It sets limits on mercury emissions from coal-fired power plants, waste incineration, and cement factories. Countries with small-scale gold mining must devise strategies to reduce or eliminate mercury use. The treaty allows the use of mercury as a vaccine preservative.


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The Zero Mercury Working Group called the treaty a step forward but said controls on the two largest sources of pollution¡ªcoal-fired power plants and small-scale gold mining¡ªwere disappointingly weak. The treaty will be open for signatures at a meeting in Minamata in October.

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