Mercury levels in the atmosphere have decreased throughout the 21st century
Mercury is released by environmental and human-driven processes. And some forms, specifically methylmercury, are toxic to humans. Therefore, policies and regulations to limit mercury emissions have been implemented across the globe. And, according to research published in ACS ES&T Air, those efforts may be working. Researchers found that atmospheric mercury levels have decreased by almost 70% in the last 20 years, mainly because human-caused emissions have been reduced.
“By tracking mercury pollution over four decades at the top of the world, we show that global efforts to reduce pollution ...