Universität zu Köln

Jiao, Xiaoyu, Dong, Zhiwen ORCID: 0000-0003-4871-219X, Kang, Shichang ORCID: 0000-0003-2115-9005, Li, Yifan, Jiang, Cong and Rostami, Masoud ORCID: 0000-0003-1730-5145 (2021). New insights into heavy metal elements deposition in the snowpacks of mountain glaciers in the eastern Tibetan Plateau. Ecotox. Environ. Safe., 207. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1090-2414

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Abstract

Atmospheric heavy metals have important environmental and health threats. To investigate atmospheric deposition and contamination of heavy metal elements in the glaciers of the eastern Tibetan Plateau (ETP), we collected the surface snow (cryoconites) samples in the Lenglongling Glacier (LG), the Gannan Snowpack (GS), the Dagu Glacier (DG), the Hailuogou Glacier (HG) and Yulong Snow-mountain Glacier (YG) in summer 2017. Samples were analyzed for concentrations and enrichment factors (EFs) of Al and trace elements (Pb, Co, Cd, Ba, Mn, Ga, Sc, V, Zn, Cr, Ni, Cu, Rb, Sb, Cs, As, Mo, Li) using inductively coupled plasma-mass spectrometry (ICP-MS). Results showed that the concentrations and EFs of heavy metals (e.g. Sb, Cu, Cr, Ni, As, Mo) were generally high value in YG, GS and LG, while were relatively low value in DG and HG, implying that ETP glaciers may have been affected by atmospheric anthropogenic pollutants deposition to varying degrees. Comparing the heavy metal concentrations in the glaciers with those in the precipitation of middle/eastern China cities and also the South Asian cities, we find that the glacial heavy metal concentrations were generally low level, though the anthropogenic pollutants were still significantly enriched. Taking the spatial distribution of As and Ni concentration/EFs in the glaciers and surrounding urban precipitation as an example, we find that the heavy metal pollutants were probably transported to the glaciers through three routes from the surrounding densely populated area of Asia. The MODIS AOD and NCEP/NCAR wind vector also demonstrated that the atmospheric pollutants originated from anthropogenic emissions of urban areas of both South Asia, and northwest and east China, mainly caused by the large scale atmospheric circulation (e.g. the South Asian Monsoon, westerlies and Eastern Asian Summer Monsoon). Therefore, control of these potential pollution emission sources of the surrounding densely populated areas in Asia could be important to ETP glaciers in future perspectives.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Jiao, Xiaoyu UNSPECIFIED UNSPECIFIED UNSPECIFIED Dong, Zhiwen UNSPECIFIED orcid.org/0000-0003-4871-219X UNSPECIFIED Kang, Shichang UNSPECIFIED orcid.org/0000-0003-2115-9005 UNSPECIFIED Li, Yifan UNSPECIFIED UNSPECIFIED UNSPECIFIED Jiang, Cong UNSPECIFIED UNSPECIFIED UNSPECIFIED Rostami, Masoud UNSPECIFIED orcid.org/0000-0003-1730-5145 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-579314
DOI:	10.1016/j.ecoenv.2020.111228
Journal or Publication Title:	Ecotox. Environ. Safe.
Volume:	207
Date:	2021
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1090-2414
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language REMOTE HIGH-MOUNTAIN; TRACE-ELEMENTS; WET DEPOSITION; ATMOSPHERIC PRECIPITATION; HIMALAYAS; URBAN; CORE; SNOW; PARTICLES; AEROSOL Multiple languages Environmental Sciences; Toxicology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/57931