| Title: | [Size distribution of particles collected by passive sampler] |
| Author(s): | Chu L; Liu JM; Liu ZG; Cao J; Wang ZH; |
| Address: | "College of Urban and Environmental Sciences, Peking University, Beijing 100871, China. truly1985@126.com" |
| ISSN/ISBN: | 0250-3301 (Print) 0250-3301 (Linking) |
| Abstract: | "Airborn particulate matters were sampled by two duplicate glass slides coated with thin layer of vaseline laid at the bottom of sampling cylinder of passive sampler for collecting both gaseous and particulate phase semi-volatile organic pollutant. Their size distribution was analyzed and found to be influenced by wind speed and coverage of the fine-screen-mesh (300 mesh) wrapping around the outside of sampling cylinder. In a windless (indoor) and semi-static windy conditions (sealed courtyard), diffusion of coarse particles (> 50 microm) was reduced effectively by covering sampling cylinder with the fine-screen-mesh, and accumulated size distribution curve of PM10 was similar with those collected by an active size-fractionated sampler (cascade impactor). In windy conditions (outdoor), coarse particles entered the sampling cylinder randomly, which is independent with wind speed, while the percentage of fine particulate with size of 3-5 microm decreased and those with size of 6-9 microm increased significantly" |
| Keywords: | Air Pollutants/*analysis China Environmental Monitoring/*methods Particle Size Particulate Matter/*analysis Specimen Handling/methods Volatile Organic Compounds/analysis; |
| Notes: | "MedlineChu, Lei Liu, Jiu-meng Liu, Zhi-gang Cao, Jun Wang, Zan-hong chi English Abstract Research Support, Non-U.S. Gov't China 2010/06/10 Huan Jing Ke Xue. 2010 Apr; 31(4):892-6" |
