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在COVID-19期间使用含消毒剂的潜在环境影响
Xin Yi1, Sijia Yin1, Golam Sarwar2
1School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China.
概括
在中国,COVID-19消毒剂的使用显著增加了排放. 这导致了更高的大气氧化能力,臭氧和细颗粒物度,影响了主要城市的空气质量.
科学领域:
- 大气化学 大气化学
- 环境科学 环境科学
- 公共卫生 公共卫生
背景情况:
- 由于COVID-19的流行,中国的消毒剂使用量增加.
- 这导致气 (Cl2) 和低酸 (HOCl) 的排放量增加.
- 基 (Cl) 是大气化学中的关键参与者.
研究的目的:
- 评估2020年2月期间消毒剂使用造成的排放对空气质量的影响.
- 为了量化大气化学变化由于增加的.
- 评估对臭氧 (O3) 和细颗粒物 (PM2.5) 度的影响.
主要方法:
- 使用了社区多层次空气质量 (CMAQ) 模型.
- 包含更新的化学机制.
- 在中国COVID-19爆发期间模拟空气质量影响.
主要成果:
- 反应性排放,特别是Cl2和HOCl,显著增加 (高达3倍).
- 在关键地区,大气氧化能力 (AOC) 提高了4.6%至10.3%.
- 臭氧和PM2.5度增加,在北京和武汉出现了显著的峰值.
结论:
- 在COVID-19期间广泛使用消毒剂对区域空气质量产生了重大影响.
- 排放导致臭氧和PM2.5水平升高,特别是在特定时间和城市地区.
- 进一步研究消毒剂对大气化学的影响是有必要的.
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