TY - JOUR
T1 - Air pollution and inhalation exposure to particulate matter of different sizes in rural households using improved stoves in central China
AU - Liu, Weijian
AU - Shen, Guofeng
AU - Chen, Yuanchen
AU - Shen, Huizhong
AU - Huang, Ye
AU - Li, Tongchao
AU - Wang, Yilong
AU - Fu, Xiaofang
AU - Tao, Shu
AU - Liu, Wenxin
AU - Huang-Fu, Yibo
AU - Zhang, Weihao
AU - Xue, Chunyu
AU - Liu, Guangqing
AU - Wu, Fuyong
AU - Wong, Minghung
N1 - The current study was fully or partly supported by the following projects: Natural Science Foundation Committee of China (No. 41390240, 41130754, and 41161160559), National Basic Research Program of China (No. 2014CB441101), Science & Technology Basic Special Fund (No. 2013FY111100-04), and
Global Alliance for Clean Cookstoves under PR-15-39809.
PY - 2018/1
Y1 - 2018/1
N2 - Household air pollution is considered to be among the top environmental risks in China. To examine the performance of improved stoves for reduction of indoor particulate matter (PM) emission and exposure in rural households, individual inhalation exposure to size-resolved PM was investigated using personal portable samplers carried by residents using wood gasifier stoves or improved coal stoves in a rural county in Central China. Concentrations of PM with different sizes in stationary indoor and outdoor air were also monitored at paired sites. The stationary concentrations of size-resolved PM in indoor air were greater than those in outdoor air, especially finer particles PM0.25. The daily averaged exposure concentrations of PM0.25, PM1.0, PM2.5 and total suspended particle for all the surveyed residents were 74.4 ± 41.1, 159.3 ± 74.3, 176.7 ± 78.1 and 217.9 ± 78.1 μg/m3, respectively. Even using the improved stoves, the individual exposure to indoor PM far exceeded the air quality guideline by WHO at 25 μg/m3. Submicron particles PM1.0 were the dominant PM fraction for personal exposure and indoor and outdoor air. Personal exposure exhibited a closer correlation with indoor PM concentrations than that for outdoor concentrations. Both inhalation exposure and indoor air PM concentrations in the rural households with gasifier firewood stoves were evidently lower than the reported results using traditional firewood stoves. However, local governments in the studied rural areas should exercise caution when widely and hastily promoting gasifier firewood stoves in place of improved coal stoves, due to the higher PM levels in indoor and outdoor air and personal inhaled exposure.
AB - Household air pollution is considered to be among the top environmental risks in China. To examine the performance of improved stoves for reduction of indoor particulate matter (PM) emission and exposure in rural households, individual inhalation exposure to size-resolved PM was investigated using personal portable samplers carried by residents using wood gasifier stoves or improved coal stoves in a rural county in Central China. Concentrations of PM with different sizes in stationary indoor and outdoor air were also monitored at paired sites. The stationary concentrations of size-resolved PM in indoor air were greater than those in outdoor air, especially finer particles PM0.25. The daily averaged exposure concentrations of PM0.25, PM1.0, PM2.5 and total suspended particle for all the surveyed residents were 74.4 ± 41.1, 159.3 ± 74.3, 176.7 ± 78.1 and 217.9 ± 78.1 μg/m3, respectively. Even using the improved stoves, the individual exposure to indoor PM far exceeded the air quality guideline by WHO at 25 μg/m3. Submicron particles PM1.0 were the dominant PM fraction for personal exposure and indoor and outdoor air. Personal exposure exhibited a closer correlation with indoor PM concentrations than that for outdoor concentrations. Both inhalation exposure and indoor air PM concentrations in the rural households with gasifier firewood stoves were evidently lower than the reported results using traditional firewood stoves. However, local governments in the studied rural areas should exercise caution when widely and hastily promoting gasifier firewood stoves in place of improved coal stoves, due to the higher PM levels in indoor and outdoor air and personal inhaled exposure.
KW - Daily average exposure
KW - Improved stoves
KW - Particulate matter
KW - Rural households in Central China
KW - Size distribution
UR - http://www.scopus.com/inward/record.url?scp=85042094368&partnerID=8YFLogxK
U2 - 10.1016/j.jes.2017.06.019
DO - 10.1016/j.jes.2017.06.019
M3 - Journal article
C2 - 29406120
AN - SCOPUS:85042094368
SN - 1001-0742
VL - 63
SP - 87
EP - 95
JO - Journal of Environmental Sciences
JF - Journal of Environmental Sciences
ER -