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- W2349942188 abstract "Data of PM2.5from 35 automatic air quality monitoring stations of Beijing in 2013 were analyzed to examine the temporal and spatial characteristics of PM2.5and the correlation between PM2.5and its precursors and atmospheric oxidation.The results showed that the average concentrations of PM2.5in different seasons decreased in the order of winter,spring,autumn and summer,which were 122.8 μg· m-3,85.1 μg· m-3,84.9 μg· m-3 and 79.1 μg· m-3,respectively.The average concentrations of PM2.5at different stations decreased in the order of traffic station,urban station,suburban station and regional station,which were 102.2 μg · m-3,91.8 μg · m-3,89.1 μg · m-3 and 88.7 μg · m-3,respectively.Monthly average concentrations of PM2.5showed a wavy-shaped curve,the peaks of which appeared in January,March,June and October,respectively.For the whole year,diurnal variation of PM2.5at traffic station showed a single-peak curve,while other stations showed bimodal curves.Annual average concentrations of PM2.5in different regions decreased in the order of southeast,southwest,center(six districts),northeast and northwest.Concentrations of PM2.5were significantly positively correlated with those of NO2,SO2 and OX,which indicated that precursors and atmospheric oxidation had a significant impact on the concentration of PM2.5." @default.
- W2349942188 created "2016-06-24" @default.
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- W2349942188 date "2015-01-01" @default.
- W2349942188 modified "2023-09-28" @default.
- W2349942188 title "Spatial-temporal characteristics of PM_(2.5) in Beijing in 2013" @default.
- W2349942188 hasPublicationYear "2015" @default.
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