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Study Finds 20% Decline in Air Pollution in China
The concentration of particulate pollution in China fell an average of 20% from 2015 to 2017, according to a study conducted by researchers from England’s University of Leeds.
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The concentration of particulate pollution in China fell an average of 20% from 2015 to 2017, according to a study conducted by researchers from England’s University of Leeds.
The team took periodic measurements from more than 1,600 locations in China. Results show a “significant” drop in sulfur dioxide and fine particulates in more than half the sites over the three years. But ozone levels rose steadily over the same period.
The researchers attribute the decline in SO2 and soot to China’s aggressive policies to reduce vehicular emissions and boost sales of electrified vehicles. But they note that more work is needed to fully determine what is driving the gains—and the widespread increase in ozone concentrations.
The results of the study, which was funded by AIA Group insurance, are published in the journal Environmental Research Letters. Hong Kong-based AIA claims to be the largest independent life insurance group in Asia.
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