OPEN ACCESS

Articles online

Modeling the Long-Range Transport of Particulate Matters for January in East Asia using NAQPMS and CMAQ

Category: Model studies concerning long range transport (LRT) of aerosols including chemical reactions taking

Volume: 17 | Issue: 12 | Pages: 3064-3078
DOI: 10.4209/aaqr.2016.12.0534
PDF | Supplemental material | RIS | BibTeX

Zhe Wang 1,2, Syuichi Itahashi3, Itsushi Uno1, Xiaole Pan2, Kazuo Osada4, Shigekazu Yamamoto5, Tomoaki Nishizawa6, Kei Tamura7, Zifa Wang2

  • 1 Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
  • 2 State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences, Beijing 100029, China
  • 3 Central Research Institute of Electric Power Industry, Chiba 270-1194, Japan
  • 4 Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan
  • 5 Fukuoka Institute of Health and Environmental Sciences, Fukuoka 818-0135, Japan
  • 6 National Institute for Environmental Studies, Tsukuba 305-8506, Japan
  • 7 Nagasaki Prefectural Environmental Affairs Department, Nagasaki 856-0026, Japan

Highlights

Two models were applied to simulate particulate matters (PM) in Winter in East Asia.
Three types of PM long-range transport (LRT) were identified: N-, S-, and D-type.
N episode indicated the importance of NO3 LRT, which was lack of attentions.
S episode showed the highest SO42– concentrations due to high relative humidity.
Heterogeneous processes on dust were important for NO3 during D episode.


Abstract

Two regional chemical transport models were applied to simulate high concentrations of particulate matters (PM) observed in East Asia in January 2015; the first model is the Nested Air Quality Prediction Modeling System (NAQPMS) and the second is the Community Multi-scale Air Quality Model (CMAQ). The variation of PM2.5 in both models showed well agreement with measurements over both eastern China and western Japan. Based on the model results and the aerosol compositions observed in Fukuoka in western Japan, three types of PM long-range transport (LRT) were identified: N-, S-, and D-type. The N episode showed higher fine-mode nitrate (fNO3) concentrations than fine-mode sulfate (fSO42–), indicating the importance of NO3 LRT. The S episode showed the highest fSO42– concentrations (28.9 µg m–3), which were 3.4-fold higher than fNO3, due to high relative humidity. During the D episode, dust stagnated in Fukuoka for three days, due to the influence of low- and high-pressure systems; thus, dust LRT is also important in winter besides spring. Both models reasonable explained variations in aerosol components during both N and S episodes; however, both underestimated fSO42– especially during D episode, suggesting that they may miss certain emissions or chemical mechanisms. High coarse-mode NO3 (cNO3) concentrations (maximum: 6.3 µg m–3), and high cNO3/fNO3 ratios (maximum: 1.2) were observed during D episode. NAQPMS successfully captured this cNO3 peak after including heterogeneous reactions on dust. Our results emphasize the importance of such heterogeneous processes for understanding the LRT of dust and anthropogenic pollutants over East Asia.

Keywords

Secondary inorganic aerosol Dust Air quality model Heterogeneous reaction


Related Article

Importance of Long-Range Nitrate Transport Based on Long-Term Observation and Modeling of Dust and Pollutants over East Asia

Itsushi Uno , Kazuo Osada, Keiya Yumimoto, Zhe Wang, Syuichi Itahashi, Xiaole Pan, Yukari Hara, Shigekazu Yamamoto, Tomoaki Nishizawa
Volume: 17 | Issue: 12 | Pages: 3052-3064
DOI: 10.4209/aaqr.2016.11.0494
PDF

Radiative Forcing Estimation of Aerosols at an Urban Site near the Thar Desert Using Ground-Based Remote Sensing Measurements

Sunita Verma, Divya Prakash, Atul Kumar Srivastava, Swagata Payra
Volume: 17 | Issue: 5 | Pages: 1294-1304
DOI: 10.4209/aaqr.2016.09.0424
PDF

Observed and Modeled Mass Concentrations of Organic Aerosols and PM2.5 at Three Remote Sites around the East China Sea: Roles of Chemical Aging

Yugo Kanaya , Hitoshi Matsui, Fumikazu Taketani, Xiaole Pan, Yuichi Komazaki, Zifa Wang, Limseok Chang, Daeil Kang, Minhyeok Choi, Sung-Yong Kim, Chang-Hee Kang, Akinori Takami, Hiroshi Tanimoto, Kohei Ikeda, Kazuyo Yamaji
Volume: 17 | Issue: 12 | Pages: 3091-3105
DOI: 10.4209/aaqr.2016.12.0573
PDF | Supplemental material

Model Estimation of Sulfate Aerosol Sources Collected at Cape Hedo during an intensive Campaign in October–November, 2015

Syuichi Itahashi , Shiro Hatakeyama, Kojiro Shimada, Shiori Tatsuta, Yuta Taniguchi, Chak Keung Chan, Yong Pyo Kim, Neng-Huei Lin, Akinori Takami
Volume: 17 | Issue: 12 | Pages: 3078-3090
DOI: 10.4209/aaqr.2016.12.0592
PDF
;