| Title: | "Relative and Absolute Sensitivity Analysis on Ozone Production in Tsukuba, a City in Japan" |
| Author(s): | Sakamoto Y; Sadanaga Y; Li J; Matsuoka K; Takemura M; Fujii T; Nakagawa M; Kohno N; Nakashima Y; Sato K; Nakayama T; Kato S; Takami A; Yoshino A; Murano K; Kajii Y; |
| Address: | "Center for Regional Environmental Research , National Institute for Environmental Studies , Tsukuba , Ibaraki 305-8506 , Japan. Graduate School of Engineering , Osaka Prefecture University , Sakai , Osaka 599-8531 , Japan. Graduate School of Agriculture , Tokyo University of Agriculture and Technology , 3-5-8 Saiwai-cho , Fuchu , Tokyo 183-8538 , Japan. Institute for Space-Earth Environmental Research , Nagoya University , Nagoya , Aichi 464-8601 , Japan. Faculty of Environmental Science and Graduate School of Fisheries and Environmental Sciences , Nagasaki University , Nagasaki 852-8521 , Japan. Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , Hachioji , Tokyo 192-0397 , Japan" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "The change in the ozone production rate on reducing its precursors, namely, ozone production sensitivity, is important information for developing a strategy to reduce ozone. We expanded a conventional sensitivity analysis theory by including peroxy radical loss by uptake onto particle surfaces in the aim of examining their potential impact. We also propose a new concept of absolute sensitivity that enables us to evaluate the quantitative effectiveness of precursor reduction toward mitigating ozone production over a given period and area. This study applies the theory to observations in Tsukuba, a city in Japan. The relative sensitivity analysis shows that ozone production was more sensitive to volatile organic compounds (VOCs) in the morning and evening, and it became more sensitive to NO(x) in the afternoon. NO depletion was a main trigger in this sensitivity regime transition. The absolute sensitivity analysis indicates that the VOC-sensitive period in the morning determines the total ozone production sensitivity in a day. While particles did not have significant impact on regime classification in Tsukuba, they have a potential to decrease the mitigating effect of VOC reduction on ozone production and to moderate the enhancement effect of NO(x) reduction depending upon uptake coefficients. A further study will benefit from a combination with an observation-constrained box model simulation or chemical transport modeling system, which may provide sensitivity analysis over a large spatial and temporal range" |
| Keywords: | *Air Pollutants Cities Environmental Monitoring Japan *Ozone *Volatile Organic Compounds; |
| Notes: | "MedlineSakamoto, Yosuke Sadanaga, Yasuhiro Li, Jiaru Matsuoka, Kohei Takemura, Marina Fujii, Tomihide Nakagawa, Maho Kohno, Nanase Nakashima, Yoshihiro Sato, Kei Nakayama, Tomoki Kato, Shungo Takami, Akinori Yoshino, Ayako Murano, Kentaro Kajii, Yoshizumi eng 2019/10/31 Environ Sci Technol. 2019 Dec 3; 53(23):13629-13635. doi: 10.1021/acs.est.9b03542. Epub 2019 Nov 13" |
