The Science of The Total Environment, Год журнала: 2024, Номер 953, С. 176002 - 176002
Опубликована: Сен. 2, 2024
Язык: Английский
The Science of The Total Environment, Год журнала: 2024, Номер 953, С. 176002 - 176002
Опубликована: Сен. 2, 2024
Язык: Английский
Environmental Science & Technology, Год журнала: 2025, Номер unknown
Опубликована: Янв. 15, 2025
Mercury (Hg) is a neurotoxic pollutant that ubiquitous on the planet and receives global concern because of its adverse health effects. Particle-bound HgP formation in atmosphere stems mainly from adsorption reactive gaseous HgII aerosol particles, particularly sea salt aerosol. However, observed comparable abundance over marine has not been reproduced by traditional statistics-based schemes, which were constructed continental observations. This study incorporated an improved mechanistic scheme atmospheric chemical transport model to simulate SSA-bound cycling processes atmosphere. Results show widely used could reproduce concentrations continents but failed ocean. The relative be successfully process-based scheme. Accordingly, new Hg budget was constructed, manifesting burden 4 Mg, dry deposition 160 Mg yr–1, wet 1410 yr–1 for HgP. insight sheds light re-examination risks ocean owing transition previously recognized unrecognized particulate
Язык: Английский
Процитировано
0Atmospheric Research, Год журнала: 2024, Номер 300, С. 107215 - 107215
Опубликована: Янв. 3, 2024
Язык: Английский
Процитировано
2The Science of The Total Environment, Год журнала: 2024, Номер 949, С. 175072 - 175072
Опубликована: Июль 29, 2024
Язык: Английский
Процитировано
1Atmosphere, Год журнала: 2024, Номер 15(7), С. 850 - 850
Опубликована: Июль 19, 2024
Sand events continue to occur frequently and affect the North China region. Under unfavorable meteorological conditions, they can easily combine with haze pollution, forming sandy that have a significant impact on human health. Aerosol water content (AWC) is known PM2.5, but its effect still unclear in haze. In this work, periods were observed Zhengzhou using series of high-time-resolution instruments. The AWC calculated by ISORROPIA-II model reached 11 ± 5 μg m−3, accounting for 10% period. Sensitivity tests show was mainly relative humidity (RH)-dependent. Additionally, elevated SO42−, TNO3, TNH4 crucial increase AWC. Ca2+ ions led lower than periods. Specifically, (NH4)2SO4 major contributor when RH between 30 46% period, NH4NO3 gradually became main RH. turn, could enhance formation sulfate nitrate, even during Therefore, emergency control gaseous precursors should also be implemented before sand events.
Язык: Английский
Процитировано
0The Science of The Total Environment, Год журнала: 2024, Номер 953, С. 176002 - 176002
Опубликована: Сен. 2, 2024
Язык: Английский
Процитировано
0