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Ice Core Data Shows Why Air Pollution is Reducing Slower than Sulfur Emissions Reductions
Written by AZoCleantechJun 1 2021
Ice core data obtained from Greenland indicates why air pollution has been decreasing slower compared to reductions in sulfur emissions.
The researchers in the drilling operation (left) and the drilled samples (right). Image Credit: Hokkaido University
When cloud droplets turn out to be less acidic, the chemical reaction that converts sulfur dioxide into sulfate aerosol becomes more effective. These findings can enhance the models that predict climate change and air quality.
In the United States and Western Europe, the air is much cleaner compared to how it was a decade ago. Low-sulfur gasoline standards and regulations on power plants have been successful in cutting sulfate concentrations in the air, thereby decreasing the fine particulate matter that tends to impact human health and cleaning up the environmental risk of acid rain. ....

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