Long-term monitoring in Bohai Bay indicated that the biomass of zooplankton and phytoplankton displayed an increasing trend from 1959 to 2006 [ 18 ].
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Decreasing mercury levels in consumer fish over the three decades of increasing mercury emissions in China.
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Conclusion and implication From the perspective of an overall trend, our study reveals, for the first time, that Hg concentrations in fish decreased over time in China over the past three decades and exhibited a sharp contrasting trend to the increasing Hg emissions.