کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1254908 971397 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evidence of coal combustion contribution to ambient VOCs during winter in Beijing
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Evidence of coal combustion contribution to ambient VOCs during winter in Beijing
چکیده انگلیسی

Volatile organic compounds (VOCs) play an important role in ozone and secondary organic aerosol (SOA) formation, but VOCs sources during winter are not fully understood. To investigate VOCs sources during winter, mixing ratios of C2–C12 VOCs were measured at an urban site in Beijing from December 29, 2011 to January 17, 2012. Correlation analysis of toluene to benzene and i-pentane to n-pentane suggest that coal combustion could also be an important source for VOCs besides vehicular emissions. Source apportionment results show that coal combustion and vehicular emissions contributed 28%–39% and 31%–45% to ambient VOCs during winter, respectively. Backward trajectory analyses demonstrated that contributions from the burning of coal were higher when air masses came from southern regions outside Beijing. Close attention should be paid to VOCs emissions from coal combustion in Beijing city and the vicinity to the South.

Coal combustion is an important VOCs source during winter in Beijing, with the contributions in the range of 26%–39%.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 24, Issue 9, September 2013, Pages 829–832
نویسندگان
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