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Anthropogenic Bromoform at the Extratropical Tropopause
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2023
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Source: Geophysical Research Letters, 50(9)
[PDF-2.11 MB]
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Journal Title:Geophysical Research Letters
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Description:Bromoform (CHBr3) contributes to stratospheric ozone depletion but is not regulated under the Montreal Protocol due to its short lifetime and large natural sources. Here, we show that anthropogenic sources contribute significantly to the amount of CHBr3 transported into the Northern Hemisphere (NH) extratropical stratosphere. We present a new CHBr3 emission inventory comprised of natural and anthropogenic sources, with the latter estimated from ship ballast, power plant cooling and desalination plant brine water. Including anthropogenic sources in the new inventory increases CHBr3 emissions by up to 31.5% globally and 70.5% in the NH. In consequence, atmospheric CHBr3 is also significantly higher, especially over the NH extratropics
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Source:Geophysical Research Letters, 50(9)
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DOI:
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ISSN:0094-8276;1944-8007;
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Rights Information:CC BY
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Compliance:Library
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