Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 23, Issue 12, Pages 12120-12127Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-016-6422-x
Keywords
PM2.5; Black carbon; Personal monitoring; Individual exposure; Daily dose; Dose intensity
Categories
Funding
- Shanghai Pujiang Program [13PJD013]
- Ph. D. Programs Foundation of Ministry of Education of China [20120074140001]
- Fundamental Research Funds for the Central Universities [WB1113005]
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The personal exposure of 51 graduate students to PM2.5 and BC in Shanghai was evaluated using portable PM2.5 and BC samplers. Global positioning systems and activity diaries were used to evaluate the microenvironments/activities that contributed to the total daily exposure of the participants, as well as to accurately estimate the PM2.5 and BC doses received by each participant. The mean PM2.5 and BC exposure concentrations were 110.0 and 5.3 mu g m(-3), respectively. These exposure levels were considered extremely high and comparable to those measured in a busy urban street canyon for 24 h. High daily inhaled doses in terms of both PM2.5 and BC concentrations were measured, obtaining 1062.2 and 45.9 mu g day(-1), respectively. Indoor activities significantly contributed to the students' daily dose. Eating contributed the least to PM2.5 and BC exposure, whereas outdoor activities contributed the most. PM2.5 dose intensity from indoor eating slightly exceeded BC dose intensity; conversely, transportation showed higher exposure for BC than PM2.5.
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