Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan
A 1.2 m snow pit was recovered on July 29th, 2009 from the Bogda Glacier, eastern Tianshan (??). The sample site temperature of -9.6 ? indicates that the unique glaciochemical record was well preserved and suitable for the reconstruction of air pollution levels in this previously unexploredregion. S...
| Main Authors: | , |
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| Format: | Journal Article |
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China Academic Journal Electronic Publishing House
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/18960 |
| _version_ | 1848749897129394176 |
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| author | Zhang, X. Edwards, Peter |
| author_facet | Zhang, X. Edwards, Peter |
| author_sort | Zhang, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A 1.2 m snow pit was recovered on July 29th, 2009 from the Bogda Glacier, eastern Tianshan (??). The sample site temperature of -9.6 ? indicates that the unique glaciochemical record was well preserved and suitable for the reconstruction of air pollution levels in this previously unexploredregion. Samples were analyzed for major ions (Na+, K+, Ca2+, Mg2+, NH4 +, Cl-, SO42-, NO3-,HCOO-, and CH3COO-). NO3 - and SO4 2- were characterized by significant high levels of pollution concentration. Most air masses backward trajectories ending in December 2008 have passed the Urumqi City center, while some even traveled across the primary nuclear weapons testing venue of the former Soviet Union (STS). The mean pH value of snow samples is coincident with the average value of Urumqi’s aerosol, and the ratio of [NO3-]/[SO4 2-] in the snow pit generally agrees with the value of the Urumqi winter aerosols. In addition, the [HCOO-]/[CH3COO-] ratio of snow samples is only 0.7, lower than unity. These analyses indicate that SO4 2- and NO3 -in the Bogda Glacier are the result of anthropogenic pollutions. |
| first_indexed | 2025-11-14T07:28:14Z |
| format | Journal Article |
| id | curtin-20.500.11937-18960 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:28:14Z |
| publishDate | 2011 |
| publisher | China Academic Journal Electronic Publishing House |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-189602017-02-28T01:34:51Z Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan Zhang, X. Edwards, Peter SO42- NO3- anthropogenic pollutions A 1.2 m snow pit was recovered on July 29th, 2009 from the Bogda Glacier, eastern Tianshan (??). The sample site temperature of -9.6 ? indicates that the unique glaciochemical record was well preserved and suitable for the reconstruction of air pollution levels in this previously unexploredregion. Samples were analyzed for major ions (Na+, K+, Ca2+, Mg2+, NH4 +, Cl-, SO42-, NO3-,HCOO-, and CH3COO-). NO3 - and SO4 2- were characterized by significant high levels of pollution concentration. Most air masses backward trajectories ending in December 2008 have passed the Urumqi City center, while some even traveled across the primary nuclear weapons testing venue of the former Soviet Union (STS). The mean pH value of snow samples is coincident with the average value of Urumqi’s aerosol, and the ratio of [NO3-]/[SO4 2-] in the snow pit generally agrees with the value of the Urumqi winter aerosols. In addition, the [HCOO-]/[CH3COO-] ratio of snow samples is only 0.7, lower than unity. These analyses indicate that SO4 2- and NO3 -in the Bogda Glacier are the result of anthropogenic pollutions. 2011 Journal Article http://hdl.handle.net/20.500.11937/18960 China Academic Journal Electronic Publishing House restricted |
| spellingShingle | SO42- NO3- anthropogenic pollutions Zhang, X. Edwards, Peter Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title | Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title_full | Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title_fullStr | Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title_full_unstemmed | Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title_short | Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan |
| title_sort | anthropogenic sulfate and nitrate signals in snow from bogda glacier, eastern tianshan |
| topic | SO42- NO3- anthropogenic pollutions |
| url | http://hdl.handle.net/20.500.11937/18960 |