Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra
In this study, the first in situ static-chamber measurements were conducted at coastal Antarctica tundra for CHCl3 fluxes, which showed that CHCl3 was naturally emitted from the Antarctic tundra at 35±27nmol m−2d−1, comparable to other reported important natural sources. Significantly, enhanced CHCl...
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ftcdlib:oai:escholarship.org:ark:/13030/qt1s17x0dd 2023-06-11T04:05:55+02:00 Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra Zhang, Wanying Jiao, Yi Zhu, Renbin Rhew, Robert C Sun, Bowen Dai, Haitao 2021-09-28 application/pdf https://escholarship.org/uc/item/1s17x0dd unknown eScholarship, University of California qt1s17x0dd https://escholarship.org/uc/item/1s17x0dd public Geophysical Research Letters, vol 48, iss 18 Life Below Water Meteorology & Atmospheric Sciences article 2021 ftcdlib 2023-05-29T17:58:26Z In this study, the first in situ static-chamber measurements were conducted at coastal Antarctica tundra for CHCl3 fluxes, which showed that CHCl3 was naturally emitted from the Antarctic tundra at 35±27nmol m−2d−1, comparable to other reported important natural sources. Significantly, enhanced CHCl3 emission rates (66±20nmol m−2d−1) were observed from ornithogenic soil on the island populated with penguins, which was rich in organic matter and halides coming from penguin excrements. It is estimated that Antarctic tundra emits up to 0.1Gg CHCl3 per year, which is an important source for regional atmospheric CHCl3. Laboratory-based incubations suggested that organic carbon and chlorine inputs by penguins may stimulate O2 dependent microbial-mediated CHCl3 emission from the Antarctic tundra, and all tundra soils showed the maximum CHCl3 emission at 4°C. The strength of this CHCl3 source is also expected to change in response to Antarctic warming. Article in Journal/Newspaper Antarc* Antarctic Antarctica Tundra University of California: eScholarship Antarctic The Antarctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
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language |
unknown |
topic |
Life Below Water Meteorology & Atmospheric Sciences |
spellingShingle |
Life Below Water Meteorology & Atmospheric Sciences Zhang, Wanying Jiao, Yi Zhu, Renbin Rhew, Robert C Sun, Bowen Dai, Haitao Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
topic_facet |
Life Below Water Meteorology & Atmospheric Sciences |
description |
In this study, the first in situ static-chamber measurements were conducted at coastal Antarctica tundra for CHCl3 fluxes, which showed that CHCl3 was naturally emitted from the Antarctic tundra at 35±27nmol m−2d−1, comparable to other reported important natural sources. Significantly, enhanced CHCl3 emission rates (66±20nmol m−2d−1) were observed from ornithogenic soil on the island populated with penguins, which was rich in organic matter and halides coming from penguin excrements. It is estimated that Antarctic tundra emits up to 0.1Gg CHCl3 per year, which is an important source for regional atmospheric CHCl3. Laboratory-based incubations suggested that organic carbon and chlorine inputs by penguins may stimulate O2 dependent microbial-mediated CHCl3 emission from the Antarctic tundra, and all tundra soils showed the maximum CHCl3 emission at 4°C. The strength of this CHCl3 source is also expected to change in response to Antarctic warming. |
format |
Article in Journal/Newspaper |
author |
Zhang, Wanying Jiao, Yi Zhu, Renbin Rhew, Robert C Sun, Bowen Dai, Haitao |
author_facet |
Zhang, Wanying Jiao, Yi Zhu, Renbin Rhew, Robert C Sun, Bowen Dai, Haitao |
author_sort |
Zhang, Wanying |
title |
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
title_short |
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
title_full |
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
title_fullStr |
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
title_full_unstemmed |
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra |
title_sort |
chloroform (chcl3) emissions from coastal antarctic tundra |
publisher |
eScholarship, University of California |
publishDate |
2021 |
url |
https://escholarship.org/uc/item/1s17x0dd |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Tundra |
genre_facet |
Antarc* Antarctic Antarctica Tundra |
op_source |
Geophysical Research Letters, vol 48, iss 18 |
op_relation |
qt1s17x0dd https://escholarship.org/uc/item/1s17x0dd |
op_rights |
public |
_version_ |
1768377612653035520 |