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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2011, Vol. 12 Issue (10): 794-806    DOI: 10.1631/jzus.A11b0381
Environmental Engineering     
Evaluating population exposure to N, N-dimethylformamide in a small industrial area accounting for population movement
Yu-mei Wei, Wei-li Tian, Qing-yu Zhang, Ying-yue Zheng, Yi-ke Yang, Zu-cheng Wu, Qi Zhu, Lei Zhou, Si-mai Fang
Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 311202, China; Management Office of the New Rural Cooperative Medical Service, Longwan District Health Bureau, Wenzhou 325011, China; Department of Information Management, University of International Business and Economics, Beijing 100029, China
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Abstract  Population exposure to pollutants is important for studies on the exposure-response relationship. However, it is difficult to evaluate population exposure to non-conventional pollutants due to limited data on concentration levels and the movement patterns of inhabitants. In this study, an air dispersion model was used to simulate N, N-dimethylformamide (DMF) concentrations, as a proxy to monitoring concentrations. A total of 1289 randomly selected household representatives were surveyed to obtain information on movement characteristics. Subsequently, population movement patterns were combined with DMF concentration levels on maps of 100 m×100 m resolution to calculate population exposure. During 2008, the estimated population exposure to DMF ranged from 0.002 to 0.64 mg/m3. The highest level of population exposure to DMF was found in the north and northwest sub-districts of the study area, ranging from 0.42 to 0.64 mg/m3. The population exposure to DMF for different occupational groups indicated that retired people and farmers were vulnerable subpopulations among people highly exposed to DMF. This was mainly because they spent most time at home where the DMF concentration was high. As pollutant concentrations were divided into small grids, we found that exposure levels were substantially impacted by population movement characteristics.

Key wordsVolatile organic compound      Dispersion model      Concentration distribution      Movement characteristics      Longwan     
Received: 02 November 2010      Published: 27 June 2011
CLC:  X51  
Cite this article:

Yu-mei Wei, Wei-li Tian, Qing-yu Zhang, Ying-yue Zheng, Yi-ke Yang, Zu-cheng Wu, Qi Zhu, Lei Zhou, Si-mai Fang. Evaluating population exposure to N, N-dimethylformamide in a small industrial area accounting for population movement. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(10): 794-806.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A11b0381     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2011/V12/I10/794

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