Environmental and Health Risk Assessments of Volatile Organic Compounds (VOCs) Based on Source Apportionment-A Case Study in Harbin, a Megacity in Northeastern China.

ABSTRACT: The multiple sources and concomitant negative environmental and health impacts of volatile organic compounds (VOCs) in the atmosphere demonstrate their importance in air pollution control. This study employed environment- and health risk-oriented source apportionment methods to quantitatively estimate VOCs' contribution to air pollution and health risks, using offline VOC measurements from the Harbin urban region from 2021 to 2022. Total volatile organic compounds (TVOCs) averaged 25.6 ± 8.2 ppb, except for alkanes (34.4%), and aromatics (24.2%) were found to be a major contributor, with the highest L_OH (38.0%), ozone formation potential (OFP) (43.0%), and secondary organic aerosol formation potential (SOAFP) (95.0%) and exerting a directly toxic effect (46.0%). Positive matrix

SUBMITTER: Jiang J 

PROVIDER: S-EPMC12845896 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature