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- W2354404598 abstract "Objective To evaluate personal integrated exposure level to PM2.5 for the aged people in Beijing.Methods Panel study design was employed.The levels of indoor and outdoor PM2.5 were monitored from July,2007 to August,2008 for the subject persons,and the data of their time-activity pattern were collected by the questionnaire.Multiple linear regression was used for data analysis.Results The daily mean concentrations of outdoor and indoor PM2.5 were(85.5±48.7)μg/m3 and(110.5±77.5)μg/m3 respectively,higher than WHO air quality standards.Indoor-activity-time of the other periods accounted for more than 90% except the first period.The average integrated level of personal exposure to PM2.5 was(113.3±79.0)μg/m3 for the aged subjects,closed to the indoor PM2.5 level and only had the same tendency as outdoor PM2.5 concentration in summer.Conclusion The exposure level to PM2.5 of the aged people in Beijing was relatively higher.Indoor PM2.5 level is approximate to integrated exposure level,which can be used as an indicator for the study of exposure and health effects." @default.
- W2354404598 created "2016-06-24" @default.
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- W2354404598 date "2011-01-01" @default.
- W2354404598 modified "2023-09-28" @default.
- W2354404598 title "Evaluation of Personal Integrated Exposure to Fine Particle in a Community in Beijing" @default.
- W2354404598 hasPublicationYear "2011" @default.
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