2019—2021年疫情前后唐山市大气污染物变化特征及成因分析
Analysis of the variations and causes of air pollutants in Tangshan City before and after the COVID-19 pandemic from 2019 to 2021
2019—2021年疫情前后唐山市大气污染物变化特征及成因分析 |
| 马东玲, 任永强, 陈星彤, 孔金哥 |
|
Analysis of the variations and causes of air pollutants in Tangshan City before and after the COVID-19 pandemic from 2019 to 2021 |
| MA Dongling, REN Yongqiang, CHEN Xingtong, KONG Jinge |
| 图3 重污染阶段PM2.5日变化 |
| Fig.3 Daily variation diagram of PM2.5 in heavy pollution stage |
|
|