Characterization and Risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Different Size Segments 
of Atmospheric Particles in Jinhua, China

Jianming Feng; Ting Guo*; Jingjing Chen; Huachang Hong; Zhenyu Gu

doi:10.18686/eph.v2i2.4138

Characterization and Risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Different Size Segments of Atmospheric Particles in Jinhua, China

Jianming Feng, Ting Guo*, Jingjing Chen, Huachang Hong, Zhenyu Gu

Abstract

Atmospheric particulate matter (PM) of different particle sizes was collected simultaneously from eight locations in Jinhua from
December 2020 to January 2021, and the polycyclic aromatic hydrocarbons (PAHs) loaded on the collected PM were analyzed and evaluated.
The mass concentrations of PAHs (?15PAHs) in the sampled areas ranged from 17.29 to 41.37 ng/m3
, with an average concentration of 29.78
ng/m3
. The distribution of ?15PAHs concerning the PM10 particle size exhibited a three-peak pattern, with the highest concentration in the fine
particle size segment. 4-ring PAHs were more likely to accumulate in the fine size segment, whereas 5-6-ring PAHs were more abundant in
the coarse size segment, and 3-ring PAHs were more abundant in the medium size segment. The carcinogenic health risk of PAHs in different populations decreased in this order: adults > adolescents > children. Although the values of lifetime excess risk of carcinogenicity of each
sampling particle size segment were less than 10-6, the proportion of cancer risk in the fine particle segment was significantly higher than
that in the medium or coarse particle size segment.

Keywords

Atmospheric particulate matter; Polycyclic aromatic hydrocarbons; Particle size segments; Pollution characteristics; Health

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DOI: http://dx.doi.org/10.18686/eph.v2i2.4138

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