Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.03.028 |
Nocturnal fine particulate nitrate formation by N2O5 heterogeneous chemistry in Seoul Metropolitan Area, Korea | |
Jo, Hyun-Young1; Lee, Hyo-Jung1; Jo, Yu-Jin1; Lee, Jong-Jae1; Ban, Soojin2; Lee, Jin-Ju2; Chang, Lim-Seok2; Heo, Gookyoung2; Kim, Cheoi-Hee1 | |
2019-09-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 225页码:58-69 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | This study investigated the potential of fine nitrate (NO3- in PM2.5) formation in Seoul Metropolitan Area (SMA) by nighttime dinitrogen pentoxide (N2O5) heterogeneous chemistry during March 16-18, 2016, relatively dry and stagnant early spring days, by intervening N2O5 uptake coefficients (reactive uptake probability, gamma N2O3) in modeling with WRF-CMAQ. Simulations of a base case and two sensitivity tests with default (Davis et al., 2008), zero and decupled (tenfold) gamma N2O5 showed that impacts of gamma N2O3 on NO3- and PM2.5 are sensitive to relative humidity (RH) and sulfate-nitrate-ammonium (SNA) conditions. The base case simulation generally underestimated NO3- and PM2.5 levels in comparison to observations. Even with decupled gamma N2O3, modeled NO3- and PM2.5 concentrations showed relatively small increases under conditions that RH is relatively low in the range of 20 to 40% and SNA levels are severely underestimated (e.g., lower by one third) in the base case simulation. Comparisons of NO3- and PM2.3 concentrations in SMA between simulations with differently specified gamma N2O3 indicated that N2O5 heterogeneous chemistry has potential to (1) form additional nitric acid (HNO3), (2) further react with ammonia (NH3) emitted from various sources including agricultural sources outside of SMA urban core areas, and (3) contribute to NO3- and PM2.5 formation in SMA. Additional modeling and observational studies on heterogeneous N2O5 chemistry are needed to improve our understanding of NO3- and PM2.5 formation and better forecast PM2.5 pollution levels over SMA or other urban areas with abundant nitrogen oxides emissions and ammonia emissions such as agricultural emissions from surrounding areas. |
英文关键词 | N2O5 heterogeneous chemistry Nitrate aerosol Secondary inorganic aerosol PM2.5 forecasting Seoul Metropolitan Area CMAQ model |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000470049300005 |
WOS关键词 | SAN-JOAQUIN VALLEY ; AEROSOL FORMATION ; NITRYL CHLORIDE ; AIR-QUALITY ; EMISSIONS ; AMMONIUM ; HAZE ; METEOROLOGY ; HYDROLYSIS ; CALIFORNIA |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186324 |
专题 | 地球科学 |
作者单位 | 1.Pusan Natl Univ, Dept Atmospher Sci, 30 San, Busan 609735, South Korea; 2.Natl Inst Environm Res, Climate & Air Qual Res Dept, Air Qual Forecasting Ctr, 42 Hwangyeong Ro, Incheon 22689, South Korea |
推荐引用方式 GB/T 7714 | Jo, Hyun-Young,Lee, Hyo-Jung,Jo, Yu-Jin,et al. Nocturnal fine particulate nitrate formation by N2O5 heterogeneous chemistry in Seoul Metropolitan Area, Korea[J]. ATMOSPHERIC RESEARCH,2019,225:58-69. |
APA | Jo, Hyun-Young.,Lee, Hyo-Jung.,Jo, Yu-Jin.,Lee, Jong-Jae.,Ban, Soojin.,...&Kim, Cheoi-Hee.(2019).Nocturnal fine particulate nitrate formation by N2O5 heterogeneous chemistry in Seoul Metropolitan Area, Korea.ATMOSPHERIC RESEARCH,225,58-69. |
MLA | Jo, Hyun-Young,et al."Nocturnal fine particulate nitrate formation by N2O5 heterogeneous chemistry in Seoul Metropolitan Area, Korea".ATMOSPHERIC RESEARCH 225(2019):58-69. |
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