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CCl4 emissions in eastern China during 2021-2022 and exploration of potential new sources.
Li, Bowei; Huang, Jiahuan; Hu, Xiaoyi; Zhang, Lulu; Ma, Mengyue; Hu, Liting; Chen, Di; Du, Qianna; Sun, Yahui; Cai, Zhouxiang; Chen, Ao; Li, Xinhe; Feng, Rui; Prinn, Ronald G; Fang, Xuekun.
Afiliação
  • Li B; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Huang J; Wuxi Ecology Environment Monitoring and Control Center, 214062, Wuxi, Jiangsu, China.
  • Hu X; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Zhang L; Wuxi Ecology Environment Monitoring and Control Center, 214062, Wuxi, Jiangsu, China.
  • Ma M; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Hu L; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Chen D; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Du Q; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Sun Y; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Cai Z; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Chen A; Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
  • Li X; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Feng R; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
  • Prinn RG; Center for Global Change Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
  • Fang X; College of Environmental & Resource Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China. fangxuekun@zju.edu.cn.
Nat Commun ; 15(1): 1725, 2024 Feb 26.
Article em En | MEDLINE | ID: mdl-38409087
ABSTRACT
According to the Montreal Protocol, the production and consumption of ozone-layer-depleting CCl4 for dispersive applications was globally phased out by 2010, including China. However, continued CCl4 emissions were disclosed, with the latest CCl4 emissions unknown in eastern China. In the current study, based on the atmospheric measurements of ~12,000 air samples taken at two sites in eastern China, the 2021-2022 CCl4 emissions are quantified as 7.6 ± 1.7 gigagrams per year. This finding indicates that CCl4 emissions continued after being phased out for dispersive uses in 2010. Subsequently, our study identifies potential industrial sources (manufacture of general purpose machinery and manufacture of raw chemical materials, and chemical products) of CCl4 emissions.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China