ArticleThe Science of the total environment2020
Influence of Chinese New Year overlapping COVID-19 lockdown on HONO sources in Shijiazhuang.
Article in The Science of the total environment, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Changing aerosol chemistry is redefining HONO sources.Nature communications · 2025Article
- Dust emission reduction enhanced gas-to-particle conversion of ammonia in the North China Plain.Nature communications · 2022Article
- Evolution of organic carbon during COVID-19 lockdown period: Possible contribution of nocturnal chemistry.The Science of the total environment · 2022Article
- Semen quality and windows of susceptibility: A case study during COVID-19 outbreak in China.Environmental research · 2021Observational
- Ozone pollution in the North China Plain spreading into the late-winter haze season.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- How changes in human activities during the lockdown impacted air quality parameters: A review.Environmental progress & sustainable energyReview
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10 authors.
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Abstract
Nitrous acid (HONO) is an important precursor of hydroxyl radical (OH) in the atmosphere. It is also toxic to human health. In this work, HONO concentrations were measured in Shijiazhuang using a Monitor for AeRosols and Gases in ambient Air (MARGA) from December 15, 2019 to March 15, 2020, which covered the heavy air pollution season, the Chinese New Year (CNY) vocation and the Corona Virus Disease-19 (COVID-19) lockdown period. During & after CNY overlapping COVID-19 lockdown, the air quality was significantly improved because of both the emission reduction and the increase in diffusion ability of air masses. The mean HONO concentration was 2.43 ± 1.08 ppbv before CNY, while it decreased to 1.53 ± 1.16 ppbv during CNY and 0.97 ± 0.76 ppbv after CNY. The lockdown during & after CNY reduced ~31% of ambient HONO along with ~62% of NO and ~36% of NO
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