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CCl4 emissions in eastern China during 2021–2022 and exploration of potential new sources

Author

Listed:
  • Bowei Li

    (Zhejiang University)

  • Jiahuan Huang

    (Wuxi Ecology Environment Monitoring and Control Center)

  • Xiaoyi Hu

    (Zhejiang University)

  • Lulu Zhang

    (Wuxi Ecology Environment Monitoring and Control Center)

  • Mengyue Ma

    (Zhejiang University)

  • Liting Hu

    (Zhejiang University)

  • Di Chen

    (Zhejiang University)

  • Qianna Du

    (Zhejiang University)

  • Yahui Sun

    (Zhejiang University)

  • Zhouxiang Cai

    (Zhejiang University)

  • Ao Chen

    (Johns Hopkins University)

  • Xinhe Li

    (Zhejiang University)

  • Rui Feng

    (Zhejiang University)

  • Ronald G. Prinn

    (Center for Global Change Science, Massachusetts Institute of Technology)

  • Xuekun Fang

    (Zhejiang University
    Center for Global Change Science, Massachusetts Institute of Technology)

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.

Suggested Citation

  • Bowei Li & Jiahuan Huang & Xiaoyi Hu & Lulu Zhang & Mengyue Ma & Liting Hu & Di Chen & Qianna Du & Yahui Sun & Zhouxiang Cai & Ao Chen & Xinhe Li & Rui Feng & Ronald G. Prinn & Xuekun Fang, 2024. "CCl4 emissions in eastern China during 2021–2022 and exploration of potential new sources," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45981-x
    DOI: 10.1038/s41467-024-45981-x
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    References listed on IDEAS

    as
    1. Sunyoung Park & Luke M. Western & Takuya Saito & Alison L. Redington & Stephan Henne & Xuekun Fang & Ronald G. Prinn & Alistair J. Manning & Stephen A. Montzka & Paul J. Fraser & Anita L. Ganesan & Ch, 2021. "A decline in emissions of CFC-11 and related chemicals from eastern China," Nature, Nature, vol. 590(7846), pages 433-437, February.
    2. M. Rigby & S. Park & T. Saito & L. M. Western & A. L. Redington & X. Fang & S. Henne & A. J. Manning & R. G. Prinn & G. S. Dutton & P. J. Fraser & A. L. Ganesan & B. D. Hall & C. M. Harth & J. Kim & K, 2019. "Increase in CFC-11 emissions from eastern China based on atmospheric observations," Nature, Nature, vol. 569(7757), pages 546-550, May.
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