Pollution Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds in Hangzhou During Summer and Autumn Based on Photochemical Loss

March 1, 2026EARTH AND ENVIRONMENT

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Key Points

This research aims to identify the pollution characteristics of VOCs in Hangzhou and their contribution to secondary pollution.
Continuous observation of 115 VOCs in Hangzhou from June to October 2023
Utilization of photochemical age parameters to estimate initial concentrations
Source apportionment analysis using orthogonal matrix factorization.
Average TVOCs volume fractions were similar between districts; however, the development zone exhibited a higher peak-to-average ratio.
VOCs loss rate was significantly higher in the development zone (70.5%) compared to the urban area (52.1%).
Key contributors to overall VOCs include OVOCs and alkanes, with changes in ozone formation potential observed.

Assesses VOC pollution sources and impacts in Hangzhou, indicating significant industrial contributions.

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Chen et al. (2026) studied this question.

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