气候变化领域集成服务门户(CCPortal): Atmospheric pollution of a remote area of Tianshan Mountain: Ice core record

CCPortal

DOI	10.1029/2002JD002181
	Atmospheric pollution of a remote area of Tianshan Mountain: Ice core record
	Lee, XQ; Qin, DH; Jiang, GB; Duan, KQ; Zhou, H
发表日期	2003
ISSN	2169-897X
卷号	108 期号:D14
英文摘要	[1] The influence of anthropogenic pollution on the region of Tianshan Mountain, a remote area in arid central Asia, has been debated in the recent years. An ice core, covering the past 43 years, retrieved from Glacier 1 at Urumqi River head in the east Tianshan, northwest China, was analyzed to examine the problem. CH3COO- (acetate) and HCOO- (formate), the chief tropospheric carboxylates that can originate from anthropogenic pollution, average 389.4 +/- 336.3 ng g(-1) (N = 489) and 61.1 +/- 89.0 ng g(-1) (N = 541), respectively, with a mean ratio HCOO-/CH3COO- of 0.21 +/- 0.23 (N = 489). SO42-, the major inorganic anion in the core, averages 232.9 +/- 279.9 ng g(-1) (N = 542). The organic and inorganic records have covaried in the past four decades. They originate principally from anthropogenic pollution, coal combustion in particular, of the local and regional atmosphere. The pH values in the record range from 6 to 9 with an average of 6.9 +/- 0.5 (N = 541). The general trend of the pH data matches that of HCOO-, CH3COO-, and SO42-, indicating that the anthropogenic pollution has released considerable particulate material along with unsaturated hydrocarbons and SO2. As a result, the pollution has not been acidifying the environment, but making it alkaline.
英文关键词	tropospheric chemistry; carboxylic acid; formate; acetate; sulfate; precipitation
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158726
作者单位	Lee, XQ (corresponding author), Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Ice Core & Cold Reg Environm, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Lee, XQ,Qin, DH,Jiang, GB,et al. Atmospheric pollution of a remote area of Tianshan Mountain: Ice core record[J],2003,108(D14).
APA	Lee, XQ,Qin, DH,Jiang, GB,Duan, KQ,&Zhou, H.(2003).Atmospheric pollution of a remote area of Tianshan Mountain: Ice core record.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,108(D14).
MLA	Lee, XQ,et al."Atmospheric pollution of a remote area of Tianshan Mountain: Ice core record".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 108.D14(2003).