Assessment of polycyclic aromatic hydrocarbons in indoor dust from varying categories of rooms in Changchun city, northeast China

Environmental Geochemistry and Health
Zucheng WangYuyan Liu

Abstract

Sixteen polycyclic aromatic hydrocarbons (PAHs) were isolated from indoor dust from various categories of rooms in Changchun city, northeast China, including dormitory, office, kitchen, and living rooms. PAH concentrations ranged from 33.9 to 196.4 μg g(-1) and 21.8 to 329.6 μg g(-1) during summer and winter, respectively, indicating that total PAH concentrations in indoor dust are much higher than those in other media from the urban environment, including soils and sediments. The percentage of five- to six-ring PAHs was high, indicating that PAHs found in indoor dust mainly originate from pyrolysis rather than a petrogenic source. Rooms were divided into three groups using cluster analysis on the basis of 16 PAH compositions, namely smoke-free homes, homes exposed to smoke and offices. Results showed that the source of PAHs in smoke-free residential homes is primarily the burning of fossil fuels. In addition to the burning of fossil fuels, biomass combustion and cooking contributed to PAHs in houses exposed to smoke (including kitchens). Motor vehicles are an additional source of PAHs in offices because of greater interactions with the outdoor environment. The results of health risk assessment showed that the cancer risk level...Continue Reading

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Citations

May 1, 2018·Environmental Science and Pollution Research International·Zucheng WangShengzhong Wang
Mar 16, 2019·Environmental Geochemistry and Health·Ruipeng TongJianfeng Li
Oct 21, 2018·The Science of the Total Environment·M Velázquez-GómezS Lacorte
Mar 15, 2020·Ecotoxicology and Environmental Safety·Mengchen ShenLi Zhou

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