信阳市冬季大气可吸入颗粒物中化学元素组成特征及来源解析

Characteristics of Chemical Elements in Inhalable Particles and Their Source Apportionment in Winter

摘要: 为了解信阳市大气可吸入颗粒物可能的来源,采样并分析信阳市大气可吸入颗粒物中化学元素组成,得到了可吸入颗粒物中14种化学元素的质量浓度.研究表明:信阳市可吸入颗粒物中主要化学元素为Al、Si、K、Ca、P、Fe、S,其中由燃煤引起的S元素质量浓度最高,为8.2μg.m-3.因子分析结果表明:燃煤源、土壤源、建筑施工源与垃圾焚烧源是可吸入颗粒物的主要来源.

Abstract: In order to understand possible sources of atmospheric inhalable particles in Xinyang City,samples of inhalable particles were collected and analyzed. The mass concentrations of 14 principal component elements were obtained. The results show that main chemical elements were Al,Si,K,Ca,P,Fe,S in inhalable particles and the concentration level of S is the highest and reaches 8.2 μg·m-3.The result of principal components analysis shows that main sources of inhalable particles include coal burning,soil source,c...