自工业革命以来,金属汞的全球平均水平增加了3倍,其主要原因是化石燃料的燃烧.长久以来,虽然这种大气沉降被认为是淡水和沿海生态系统广受污染的关键因素,还有一些科学家正关注另一种潜在的影响因素:地面下流动 The global average for metallic mercury has tripled since the Industrial Revolution, largely due to the burning of fossil fuels, which has long been considered a key factor in widespread pollution of freshwater and coastal ecosystems and Some scientists are looking at another potential contributor: subsurface flow