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Start Over Author "Yang, Xuezhi" Journal environmental science & technology
10 results on '"Yang, Xuezhi"'

5. Development of Human Lung Induction Models for Air Pollutants’ Toxicity Assessment

Author

Liu, Shuyu, primary, Yang, Renjun, additional, Chen, Yongjiu, additional, Zhao, Xingchen, additional, Chen, Shaokun, additional, Yang, Xuezhi, additional, Cheng, Zhanwen, additional, Hu, Bowen, additional, Liang, Xiaoxing, additional, Yin, Nuoya, additional, Liu, Qian, additional, Wang, Hailin, additional, Liu, Sijin, additional, and Faiola, Francesco, additional

Published
2021
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9. New Insights into Unexpected Severe PM2.5Pollution during the SARS and COVID-19 Pandemic Periods in Beijing

Author

Zuo, Peijie, Zong, Zheng, Zheng, Bo, Bi, Jianzhou, Zhang, Qinghua, Li, Wei, Zhang, Jingwei, Yang, Xuezhi, Chen, Zigu, Yang, Hang, Lu, Dawei, Zhang, Qinghua, Liu, Qian, and Jiang, Guibin

Abstract

During the SARS period in 2003 and COVID-19 pandemic period in 2020, unexpected severe particulate matter pollution occurred in northern China, although the anthropogenic activities and associated emissions have assumed to be reduced dramatically. This anomalistic increase in PM2.5pollution raises a question about how source emissions impact the air quality during these pandemic periods. In this study, we investigated the stable Cu and Si isotopic compositions and typical source-specific fingerprints of PM2.5and its sources. We show that the primary PM2.5emissions (PM2.5emitted directly from sources) actually had no reduction but redistribution during these pandemic periods, rather than the previous thought of being greatly reduced. This finding provided critical evidence to interpret the anomalistic PM2.5increase during the pandemic periods in north China. Our results also suggested that both the energy structure adjustment and stringent regulations on primary emissions should be synergistically implemented in a regional scale for clean air actions in China.

Published
2022
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