| 宁波PM10中有机碳和元素碳的季节变化及来源分析 |
| |
| 引用本文： | 许丹丹,屈晓萍,汪伟峰,俞杰.宁波PM10中有机碳和元素碳的季节变化及来源分析[J].中国环境监测,2014,30(1):49-52. |
| |
| 作者姓名： | 许丹丹 屈晓萍 汪伟峰 俞杰 |
| |
| 作者单位： | 宁波市环境监测中心, 浙江 宁波 315012;宁波市环境监测中心, 浙江 宁波 315012;宁波市环境监测中心, 浙江 宁波 315012;宁波市环境监测中心, 浙江 宁波 315012 |
| |
| 摘 要： | 为了探讨宁波市大气颗粒物中浓度水平与季节变化,2010年1、5、8、11月分季节采集了宁波市大气中PM10样品,在宁波连续观测了PM10以及有机碳(OC)、元素碳(EC)的浓度变化,并探讨宁波全年各季碳气溶胶污染变化特征;PM10中OC和EC相关性较好,说明OC与EC的来源相同,各采样点PM10中OC/EC的各季均值大部分超过2.0,表明宁波空气中存在一定的二次污染。宁波秋季SOC占OC含量高于其他季节。从PM10中8个碳组分丰度初步判断宁波市颗粒物中碳的主要来源是汽车尾气、道路扬尘及燃煤。
|
| 关 键 词： | PM10 有机碳 无机碳 二次有机碳 |
| 收稿时间： | 2012/9/29 0:00:00 |
| 修稿时间： | 2013/3/26 0:00:00 |
Characteristics of Organic and Elemental Carbon in PM10 in Ningbo and Source Analysis |
| |
| XU Dan-dan,QU Xiao-ping,WANG Wei-feng and YU Jie.Characteristics of Organic and Elemental Carbon in PM10 in Ningbo and Source Analysis[J].Environmental Monitoring in China,2014,30(1):49-52. |
| |
| Authors: | XU Dan-dan QU Xiao-ping WANG Wei-feng and YU Jie |
| |
| Institution: | Ningbo Environmental Monitoring Centre, Ningbo 315012, China;Ningbo Environmental Monitoring Centre, Ningbo 315012, China;Ningbo Environmental Monitoring Centre, Ningbo 315012, China;Ningbo Environmental Monitoring Centre, Ningbo 315012, China |
| |
| Abstract: | In order to study the concentration of carbon with season change in Ningbo City, samples were collected in January, March, Augest,November, 2010. The correlation between OC and EC is significant in PM10,which showed the source of OC and EC was the same in genera1.Moreover,the average OC/EC ratios in PM10 of the sites all exceeded 2.0.It suggested that there existed secondary organic carbon in ambient air of Ningbo. The average mass concentration of SOC in autumn was significantly higher than in other seasons.The percentage of eight carbon fractions in PM10 indicated that coal combustion,vehicle exhaust and road dust were primary sources of particulate pollution of Ningbo in winter. |
| |
| Keywords: | PM10 organic carbon lemental carbon secondary organic carban |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国环境监测》浏览原始摘要信息 |
| 点击此处可从《中国环境监测》下载免费的PDF全文 |
|
