Environmental Pollution, Journal Year: 2023, Volume and Issue: 335, P. 122290 - 122290
Published: July 29, 2023
Language: Английский
Environmental Pollution, Journal Year: 2023, Volume and Issue: 335, P. 122290 - 122290
Published: July 29, 2023
Language: Английский
Remote Sensing, Journal Year: 2024, Volume and Issue: 16(2), P. 316 - 316
Published: Jan. 12, 2024
O3 poses a significant threat to human health and the ecological environment. In recent years, pollution has become increasingly serious, making it difficult accurately control precursor emissions. Satellite indicator methods, such as FNR (formaldehyde-to-nitrogen dioxide ratio (HCHO/NO2 ratio)), provide an effective way identify ozone areas on large geographical scale due their simple acquisition of datasets. This can help determine primary factors contributing assist in managing it. Based TROPOMI data from May 2018 December 2022, combined with ground-based monitoring China National Environmental Monitoring Centre, we explored uncertainty associated using HCHO/NO2 (FNR) area determination. We focused four representative regions China: Jing-Jin-Ji-Lu-Yu (JJJLY), Jiang-Zhe-Hu-Wan (JZHW), Chuan-Yu (CY), South China. By statistical curve-fitting method, found that thresholds were 3.5–5.1, 2.0–4.0, 2.5–4.2, 1.7–3.5, respectively. Meanwhile, analyzed spatial temporal characteristics HCHO, NO2, areas. The HCHO concentrations NO2 had obvious cyclical patterns, higher column densities occurring summer winter. These high values always appeared dense population activities well-developed economies. distribution indicated during periods, urban industrial primarily controlled by VOCs, suburban gradually shifted VOC-limited regimes transitional eventually reverted back regimes. contrast, rural other remote relatively less development mainly NOx. also exhibited periodic variations, mostly appearing lower study identifies main different serve valuable reference for control.
Language: Английский
Citations
3Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 697, P. 134502 - 134502
Published: June 7, 2024
Language: Английский
Citations
3The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 865, P. 161069 - 161069
Published: Dec. 27, 2022
Language: Английский
Citations
14The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 881, P. 163369 - 163369
Published: April 7, 2023
Language: Английский
Citations
7Environmental Pollution, Journal Year: 2023, Volume and Issue: 335, P. 122290 - 122290
Published: July 29, 2023
Language: Английский
Citations
7