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The North China Plain (NCP) and the Yangtze River Delta (YRD) in China have been experiencing severe particulate matter (PM) pollution problems associated with the rapid economic growth and the accelerated urbanization. In this study, hourly mass concentrations of PM 2.5 and PM 10 during June 1st–August 31st, 2013 were collected in 13 cities located in or adjacent to the NCP region...
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