Sentences with phrase «mercury depositions from»

Not exact matches

We needed to measure mercury levels year - round in order to develop annual mercury deposition mass balances — estimates of how much mercury was entering the Arctic from different sources and where it goes.

These popcorn - sized puffs of ice crystals have long been thought the source of the bromine oxide that triggers the deposition of the mercury from the atmosphere and the depletion of ozone near the poles.

The hot - spot standoff arises from big gaps in mercury science, according to environmental researchers, and the lack of comprehensive data on mercury deposition means that a consensus about emissions control will not likely emerge soon.

Protects wildlife, habitats and ecosystem health from acid rain, nitrogen and mercury deposition.

However, both sediment records of atmospheric deposition of Hg2 + species at high northern latitudes and atmospheric GEM concentrations inferred from Greenland firn air support the conclusion that transfer of anthropogenic inorganic mercury through the atmosphere to terrestrial and marine reservoirs occurs on a large scale.

In the Arctic, the record of atmospheric deposition of Hg2 + species in lake sediments exhibits a similar global trend as atmospheric GEM concentrations inferred from Greenland firn: lake sediments show an increase in mercury deposition which parallels increasing industrialization (see ref.