| Title: | Sensitivities of Simulated Source Contributions and Health Impacts of PM(2.5) to Aerosol Models |
| Author(s): | Morino Y; Ueda K; Takami A; Nagashima T; Tanabe K; Sato K; Noguchi T; Ariga T; Matsuhashi K; Ohara T; |
| Address: | "Center for Regional Environment Research, National Institute for Environmental Studies , 16-2, Onogawa, Tsukuba, Ibaraki 305-8506, Japan. Graduate School of Engineering, Kyoto University , Kyoto daigaku-katsura, Nishikyo-ku, Kyoto 615-8530, Japan. Center for Social and Environmental Systems Research, National Institute for Environmental Studies , 16-2, Onogawa, Tsukuba, Ibaraki 305-8506, Japan. Fukushima Branch, National Institute for Environmental Studies , 2-16, Sugitsumacho, Fukushima-shi, Fukushima 960-8670, Japan" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Chemical transport models are useful tools for evaluating source contributions and health impacts of PM(2.5) in the atmosphere. We recently found that concentrations of PM(2.5) compounds over Japan were much better reproduced by a volatility basis set model with an enhanced dry deposition velocity of HNO(3) and NH(3) compared with a two-product yield model. In this study, we evaluated the sensitivities to organic aerosol models of the simulated source contributions to PM(2.5) concentrations and of PM(2.5)-related mortality. Overall, the simulated source contributions to PM(2.5) were similar between the two models. However, because of the improvements associated with the volatility basis set model, the contributions of ammonia sources decreased, particularly in winter and spring, and contributions of biogenic and stationary evaporative sources increased in spring and summer. The improved model estimated that emission sources in Japan contributed 35%-48% of the PM(2.5)-related mortality in Japan. These values were higher than the domestic contributions to average PM(2.5) concentrations in Japan (26%-33%) because the domestic contributions were higher in higher population areas. These results indicate that control of both domestic and foreign emissions is necessary to reduce health impacts due to PM(2.5) in Japan" |
| Keywords: | *Aerosols *Air Pollutants Environmental Monitoring Japan *Particulate Matter; |
| Notes: | "MedlineMorino, Yu Ueda, Kayo Takami, Akinori Nagashima, Tatsuya Tanabe, Kiyoshi Sato, Kei Noguchi, Tadayoshi Ariga, Toshinori Matsuhashi, Keisuke Ohara, Toshimasa eng 2017/11/25 Environ Sci Technol. 2017 Dec 19; 51(24):14273-14282. doi: 10.1021/acs.est.7b04000. Epub 2017 Dec 8" |
