[Spatiotemporal Characteristics of Full-volatility Organic Compound （FVOC） Emissions from Volatile Chemical Product （VCP） Use Sources in China].

Authors

Xiao-Ming Liang, Dai-Qi Ye, Jin-Guo Wang, Jun-Hong Ji, Xiang-Zhao Qi, Lu-Tong Gan, Gang Yan, Lai-Guo Chen

Published in

Huan jing ke xue= Huanjing kexue. Volume 47. Issue 10. Pages 6599-6609. Oct 15, 2026.

Abstract

This study established a systematic four-tier classification system for volatile chemical product （VCP） use sources in China and developed a comprehensive full-volatility organic compound （FVOC） emission accounting methodology， focusing on FVOC emissions across the entire volatility range from VCP use sources. Based on this framework， a detailed FVOC emission inventory for Chinese VCP use sources from 2000 to 2020 was constructed， revealing spatiotemporal characteristics and proposing directional countermeasures and suggestions. The results indicated that China's FVOC emissions from VCP use sources exhibited an initial increase followed by a decrease from 2000 to 2020. Emissions rose continuously from 2000 to 2018， peaking in 2018 before declining. By 2020， FVOC emissions reached 8 096 kt， representing a 359% increase compared to 2000 levels. Paints， pesticides， and adhesives were the major contributing VCP categories， accounting for 24%-61%， 8%-34%， and 14%-18% of total emissions， respectively. While FVOC emissions from paints， inks， adhesives， and pesticides showed trends of initial increase followed by decrease （with varying peak years）， emissions from asphalt and consumer products demonstrated continuous growth. At the tertiary source level， general anti-corrosion paints， Gravure printing inks， architectural and interior decoration， herbicides， architectural asphalt （ambient application）， and air fresheners were the VCP types that contributed the most to FVOC emission respectively. Spatially， the average FVOC emission intensity from VCP use sources gradually increased from 2000 to 2020， reaching approximately 4.6 times the 2000 level by 2020. Emissions exhibited a concentrated geographical distribution over time， primarily located in the Yangtze River Delta， Pearl River Delta， Shandong， Sichuan， Hunan， and Hubei regions. In 2020， Jiangsu， Shandong， Hubei， Zhejiang， and Guangdong were the top five contributing provinces， collectively accounting for 46.8% of total emissions. This study proposes a three-tiered regulatory optimization framework for volatile chemical products （VCPs）： ① replacement of conventional sampling-based supervision with comprehensive monitoring systems for critical VCP commodities； ② implementation of source-to-end lifecycle regulation spanning production， distribution， and utilization phases； and ③ systematic integration of I/SVOC metrics into evolving VCP regulatory benchmarks.

PMID:
42935375
Bibliographic data and abstract were imported from PubMed on 27 Oct 2026.

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