干旱区生态环境知识资源中心(Arid): 西宁市城区冬季PM_(2.5)和PM

Arid

	西宁市城区冬季PM_(2.5)和PM_(10)中有机碳、元素碳污染特征
其他题名	Characteristics of Organic Carbon and Elemental Carbon in PM_(2.5) and PM_(10) in Xining in the Winter
	窦筱艳 1; 徐珣 1; 刘宇 1; 王静 2; 韩斌 2; 赵旭东 1
来源期刊	中国环境监测
ISSN	1002-6002
出版年	2016
卷号	32 期号:2 页码:44-49
中文摘要	2014年11月2015年1月对西宁市冬季开展PM_(2.5)和PM_(10)的连续监测。利用DRI 2001A型热光碳分析仪(美国)对有机碳和元素碳进行分析,结果表明:西宁市冬季PM_(2.5)和PM_(10)中碳气溶胶所占比例分别为33.13% 6.83%、 24.21% 6.27%,说明碳气溶胶主要集中在PM_(2.5)中; OC/EC值均大于2,说明西宁市大气中存在二次污染; SOC占PM_(2.5)和PM_(10)的质量浓度比例分别为46.50%和57.40%,PM_(2.5)中SOC浓度占PM_(10)中SOC浓度的61.88%,说明SOC主要存在于PM_(2.5)中,且SOC形成的二次污染和直接排放的一次污染都是西宁市碳气溶胶的主要来源;与其他城市比较发现,西宁市冬季PM_(2.5)中的碳气溶胶含量普遍高于其他城市,PM_(10)中OC质量浓度相对其他城市较高,EC质量浓度偏低; OC和EC的相关性不显著,说明来源不统一;进一步对OC和EC各组分质量浓度进行分析知,西宁市冬季碳气溶胶主要来源于机动车汽油排放、燃煤和生物质燃烧。
英文摘要	PM_(2.5) and PM_(10) were monitored continuously from November,2014 to January,2015. Organic carbon and elemental carbon were measured by DRI 2001A,which from the Desert Research Institute in the United States. The results show that the ratios of TC in PM_(2.5) and PM_(10) are 33.13% 6.83%,24.21% 6.27%,TC Mainly concentrated in PM_(2.5) in Xining Winter. The ratio of OC/EC is over 2, that is to say secondary pollution exists in Xining Winter. The ratios of secondary organic carbon(SOC) in PM_(2.5) and PM_(10) are 46.50%, 57.40%, the mass concentration of SOC in PM_(2.5) account for 61.88% of SOC in PM_(10), thatmeans SOC mainly in the PM_(2.5), the secondary pollution and the original pollution are all the mainly pollute resources of carbon aerosol in Xining Winter. Compared with other cities, the mass concentration of carbon aerosol in PM_(2.5) are higher than most of the other cities, the mass concentration of OC in PM_(10) are higher than most of the other cities,but EC are lower. The correlation between OC and EC is not significant, so the source of OC and EC is not uniform. Analyzed the mass concentration of components of OC and EC know carbon aerosol mainly comes from coal combustion,vehicle exhaust and biomass burning in Xining Winter.
中文关键词	有机碳 ; 元素碳
英文关键词	PM_(2.5) PM_(10) PM_(2.5) PM_(10) organic carbon element carbon
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5705352
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235338
作者单位	1.青海省环境监测中心站, 西宁, 青海 810007, 中国; 2.中国环境科学研究院, 北京 100012, 中国
推荐引用方式 GB/T 7714	窦筱艳,徐珣,刘宇,等. 西宁市城区冬季PM_(2.5)和PM_(10)中有机碳、元素碳污染特征[J],2016,32(2):44-49.
APA	窦筱艳,徐珣,刘宇,王静,韩斌,&赵旭东.(2016).西宁市城区冬季PM_(2.5)和PM_(10)中有机碳、元素碳污染特征.中国环境监测,32(2),44-49.
MLA	窦筱艳,et al."西宁市城区冬季PM_(2.5)和PM_(10)中有机碳、元素碳污染特征".中国环境监测 32.2(2016):44-49.