کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10179884 | 1310518 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characteristics of water-soluble inorganic species in PM10 and PM2.5 at two coastal sites during spring in Korea
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
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چکیده انگلیسی
SO42â events, defined by PM10SO42â concentrations exceeding the average by one standard deviation, were identified at the two sites - six at Gangneung and four at Taean - to investigate possible mechanisms for the formation of SO42â and NO3â. High SO42â and high NO3â at the Gangneung site were strongly associated with either high RH (89-94%) and low wind speed or high O3 (62-103Â ppb), suggesting that either gas-phase oxidation or aqueous phase oxidation played a critical role in the enhanced SO42â production. On the other hand, at the Taean site the association was with both high RH (76-92%) and high O3 (53-79Â ppb), indicating that these conditions trigger aqueous-phase and gas-phase reactions to produce secondary SO42â and NO3â particles. Also long-range transport of air masses could be one possible factor for enhanced SO42â and NO3â concentrations during the events at the two coastal sites, as evidenced by PSCF maps.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Pollution Research - Volume 7, Issue 2, March 2016, Pages 370-383
Journal: Atmospheric Pollution Research - Volume 7, Issue 2, March 2016, Pages 370-383
نویسندگان
Seung-Shik Park, Sung-Yong Cho, Chang-Hoon Jung, Kwon-Ho Lee,