Analysis of Components in Indoor Particles and Pollution Characteristics

• Published in: 气象与环境研究：英文版 no. 4; pp. 10 - 16
• Main Author: Pan Chao Lin Jianggang Zhang Hai’ou Zhou Zhikun Wang Sheng
• Format: Journal Article
• Language: English
• Published: 2016
• Subjects: carbon;Organic; Indoor; ions;Total; organic; particles;Inhalable; particulates;Water-soluble; pollutants
• ISSN: 2152-3940

Atmospheric particulate samples were collected from four densely populated places in a university,and then the concentration levels of indoor particulates were analyzed.Water-soluble cations and anions in the indoor particles were analyzed through ultrasonic extraction and ion chromatography(IC),and total organic carbon(TOC)content was analyzed by using a TOC analyzer.Organic compounds in the indoor particles were analyzed through ultrasonic extraction and GC-MS.The results showed that among the water-soluble ions,the mass concentration of SO2-4in indoor particles was the highest,so it was the main contributor of water-soluble anions,indicating that combustion of fossil fuels and industrial discharge were main sources of indoor particles at the four sampling points.Water-soluble organic carbon was the main component of water-soluble carbon in indoor particles.Among the four sampling points,the mass concentrations of the 18 organic compounds except for glycerol and phthalic acid were the highest in the cafeteria,so organic components in indoor atmospheric particles were mainly from food sources.