Seasonal variation of polycyclic aromatic hydrocarbons (PAHs) emissions in China.
A regression model based on the provincial energy consumption data was developed to calculate the monthly proportions of residential energy consumption compared to the total year volume. This model was also validated by comparing with some survey and statistical data. With this model, a PAHs emission inventory with seasonal variation was developed. The seasonal variations of different sources in different regions of China and the spatial distribution of the major sources in different seasons were also achieved. The PAHs emissions were larger in the winter than in the summer, with a difference of about 1.3-folds between the months with the largest and the smallest emissions. Residential solid fuel combustion dominated the pattern of seasonal variation with the winter-time emissions as much as 1.6 times as that in the summer, while the emissions from wild fires and open fire straw burning was mainly concentrated during the spring and summer.
Zhang
Yanxu
Y
Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
Tao
Shu
S
D000383:Agriculture; D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data; D005579:Fossil Fuels; D006801:Humans; D006109:Poaceae; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012044:Regression Analysis; D017215:Satellite Communications; D012621:Seasons
D000393:Air Pollutants; D005579:Fossil Fuels; D011084:Polycyclic Aromatic Hydrocarbons