大气是汞生物地球化学循环的关键组成部分,充当水库,运输机制,化学反应的促进者。大气汞的化学和物理行为决定了,when,以及排放的汞污染影响生态系统的地方。在这次审查中,我们提供有关大气中汞的已知信息和尚不确定信息。我们讨论新环境,实验室,以及有关汞在各种大气介质中的化学性质的理论信息。我们回顾了有关固相和液相气溶胶中汞的已知信息。我们介绍了与湿沉降和干沉降以及大气汞浓度的时空趋势有关的最新发现。我们还回顾了广泛使用的大气测量方法和目前正在开发的方法。
The atmosphere is a key component of the biogeochemical cycle of mercury, acting as a reservoir, transport mechanism, and facilitator of chemical reactions. The chemical and physical behavior of atmospheric mercury determines how, when, and where emitted mercury pollution impacts ecosystems. In this
review, we provide current information about what is known and what remains uncertain regarding mercury in the atmosphere. We discuss new ambient, laboratory, and theoretical information about the chemistry of mercury in various atmospheric media. We
review what is known about mercury in and on solid- and liquid-phase aerosols. We present recent findings related to wet and dry deposition and spatial and temporal trends in atmospheric mercury concentrations. We also
review atmospheric measurement methods that are in wide use and those that are currently under development.