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...

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Bibliographic Details
Main Authors:	Zhang, X., Edwards, Peter
Format:	Journal Article
Published:	China Academic Journal Electronic Publishing House 2011
Subjects:	SO42- NO3- anthropogenic pollutions
Online Access:	http://hdl.handle.net/20.500.11937/18960

id	curtin-20.500.11937-18960
recordtype	eprints
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
repository_type	Digital Repository
institution_category	Local University
institution	Curtin University Malaysia
building	Curtin Institutional Repository
collection	Online Access
topic	SO42- NO3- anthropogenic pollutions
spellingShingle	SO42- NO3- anthropogenic pollutions Zhang, X. Edwards, Peter Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan
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.
format	Journal Article
author	Zhang, X. Edwards, Peter
author_facet	Zhang, X. Edwards, Peter
author_sort	Zhang, X.
title	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_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_sort	anthropogenic sulfate and nitrate signals in snow from bogda glacier, eastern tianshan
publisher	China Academic Journal Electronic Publishing House
publishDate	2011
url	http://hdl.handle.net/20.500.11937/18960
first_indexed	2018-09-06T19:57:08Z
last_indexed	2018-09-06T19:57:08Z
_version_	1610889380054958080

Anthropogenic sulfate and nitrate signals in snow from Bogda Glacier, eastern Tianshan

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