Liu Yangsheng, Chen Rui, Shen Xingxing, Mao Xiaoling
Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China.
Environ Int. 2004 Apr;30(2):189-97. doi: 10.1016/S0160-4120(03)00173-9.
From 26 October 2002 to 8 March 2003, particulate matter (PM) concentrations (total suspended particles [TSP], PM10, PM2.5 and PM1) were measured at 49 public places representing different environments in the urban area of Beijing. The objectives of this study were (1) to characterize the indoor PM concentrations in public places, (2) to evaluate the potential indoor sources and (3) to investigate the contribution of PM10 to TSP and the contributions of PM2.5 and PM1 to PM10. Additionally, The indoor and outdoor particle concentrations in the same type of indoor environment were employed to investigate the I/O level, and comparison was made between I/O levels in different types of indoor environment. Construction activities and traffic condition were the major outdoor sources to influence the indoor particle levels. The contribution of PM10 to TSP was even up to 68.8%, while the contributions of PM2.5 and PM1 to PM10 were not as much as that of PM10 to TSP.
2002年10月26日至2003年3月8日，对代表北京市区不同环境的49个公共场所的颗粒物（PM）浓度（总悬浮颗粒物 [TSP]、PM10、PM2.5和PM1）进行了测量。本研究的目的是：（1）描述公共场所室内PM浓度特征；（2）评估潜在的室内来源；（3）研究PM10对TSP的贡献以及PM2.5和PM1对PM10的贡献。此外，利用同一类型室内环境中的室内和室外颗粒物浓度来研究I/O水平，并对不同类型室内环境的I/O水平进行比较。建筑活动和交通状况是影响室内颗粒物水平的主要室外来源。PM10对TSP的贡献甚至高达68.8%，而PM2.5和PM1对PM10的贡献不如PM10对TSP的贡献大。
