Transparent and real-time air quality monitoring may translate to cleaner air, new research finds.
Most low- and middle-income countries lack air pollution monitoring. But a new study finds that a U.S. embassy program that rolled out air quality monitors over a period of years was associated with improvements in air quality in the cities where the monitors were installed. The declines in particulate matter sized 2.5 µm and less — the size most associated with health problems in people — averaged between 2 and 4 µg/m3 per year, researchers reported in the journal Proceedings of the National Academy of Sciences.
For the median city in the sample, that translates to an estimated 303 fewer premature deaths per year based on standard epidemiological models. “It turned out to be a substantial benefit,” says study coauthor Akshaya Jha, an assistant professor of economics and public policy at Carnegie Mellon Univ...
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