摘要
采用分级提取法,考察了某典型排放源周边大气颗粒物(PM_(10)、PM_(2.5))的形态分布特征,同时采用富集因子法和因子分析法探讨了大气颗粒物中铊的可能来源。结果表明,无论是在PM_(10)还是PM_(2.5)中铊均是以分布在可氧化态为主,在环境中具有较强的迁移性;大气颗粒物中的铊主要来自人为污染源,其中PM_(10)中的铊主要来自焙烧渣扬尘和污染源排放的废气,而PM_(2.5)中铊则主要是来自污染源排放的废气。
In this study, speciation characteristics of thallium in the airborne particle samples （PM10, PM2.5） collected from a typical emission source was investigated and the possible sources of thallium in PM10 and PM2.5 were discussed by use of enrichment factor method and principal component analysis. The results showed that thallium in PM10 and PM2.5 appeared in a majority of oxidizable form, displaying a high mobility in the environment. The sources of thallium in the airborne particles mainly came from anthropogenic pollution. Thallium in PM10 mainly came from cinder dust and flue gas of the pollution emission sources, while thallium in PM2.5 mainly came from the flue gas of the pollution emission sources.
出处
《环境保护科学》
CAS
2016年第2期114-119,共6页
Environmental Protection Science
基金
国家自然科学基金(41573008)
国家自然科学基金(20477007)项目资助
关键词
铊
大气颗粒物
形态
源分析
Thallium
Airborne Particle
Speciation
Source Analysis
