TY - JOUR
T1 - PAHs in indoor dust samples in Shanghai's universities
T2 - Levels, sources and human exposure
AU - Peng, Huan
AU - Yang, Yi
AU - Liu, Min
AU - Zhou, John L.
PY - 2012/10
Y1 - 2012/10
N2 - Given the significant amount of time people spend indoors, the occurrence of polycyclic aromatic hydrocarbons (PAHs) in indoor dust and their potential risks are of great concern. In the present study, ten dust samples from lecture theatres and twelve samples from dining halls were collected from university campuses in Shanghai to investigate the PAH levels, possible sources and human exposure. The total concentrations of 18 PAHs ranged from 9. 84 to 21. 44 μg/g for dust samples from lecture theatres, and 9. 63-44. 13 μg/g for samples from dining halls. Total PAH concentrations in indoor dust samples showed a better correlation to black carbon compared to total organic carbon contents. PAHs in dining halls samples showed a similar distribution pattern with that of commercial kitchen air, which indicated that cooking activities could contribute most of the PAHs found in dining halls. Principal component analysis revealed both petrogenic and pyrogenic sources. The potential health risk for PAHs was assessed in terms of BaP equivalent carcinogenic power and estimated daily intake (EDI). Relatively high EDI values compared to other studies suggested that PAHs posed a potential threat to human health in indoor environments at Shanghai's universities.
AB - Given the significant amount of time people spend indoors, the occurrence of polycyclic aromatic hydrocarbons (PAHs) in indoor dust and their potential risks are of great concern. In the present study, ten dust samples from lecture theatres and twelve samples from dining halls were collected from university campuses in Shanghai to investigate the PAH levels, possible sources and human exposure. The total concentrations of 18 PAHs ranged from 9. 84 to 21. 44 μg/g for dust samples from lecture theatres, and 9. 63-44. 13 μg/g for samples from dining halls. Total PAH concentrations in indoor dust samples showed a better correlation to black carbon compared to total organic carbon contents. PAHs in dining halls samples showed a similar distribution pattern with that of commercial kitchen air, which indicated that cooking activities could contribute most of the PAHs found in dining halls. Principal component analysis revealed both petrogenic and pyrogenic sources. The potential health risk for PAHs was assessed in terms of BaP equivalent carcinogenic power and estimated daily intake (EDI). Relatively high EDI values compared to other studies suggested that PAHs posed a potential threat to human health in indoor environments at Shanghai's universities.
KW - Human exposure
KW - Indoor dust
KW - PAHs
KW - Source
UR - https://www.scopus.com/pages/publications/84865424991
U2 - 10.1007/s10653-012-9456-0
DO - 10.1007/s10653-012-9456-0
M3 - 文章
C2 - 22527117
AN - SCOPUS:84865424991
SN - 0269-4042
VL - 34
SP - 587
EP - 596
JO - Environmental Geochemistry and Health
JF - Environmental Geochemistry and Health
IS - 5
ER -
