MOBILE MEASUREMENT OF AMBIENT VOLATILE ORGANIC COMPOUNDS IN THE JIANGBEI CHEMICAL INDUSTRIAL PARK OF NANJING, CHINA

GAO Jia-le; LE Hao; GE Xin-lei

doi:10.13205/j.hjgc.202101013

Volume 39 Issue 1

Apr. 2021

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GAO Jia-le, LE Hao, GE Xin-lei. MOBILE MEASUREMENT OF AMBIENT VOLATILE ORGANIC COMPOUNDS IN THE JIANGBEI CHEMICAL INDUSTRIAL PARK OF NANJING, CHINA[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 89-95,100. doi: 10.13205/j.hjgc.202101013

Citation:

GAO Jia-le, LE Hao, GE Xin-lei. MOBILE MEASUREMENT OF AMBIENT VOLATILE ORGANIC COMPOUNDS IN THE JIANGBEI CHEMICAL INDUSTRIAL PARK OF NANJING, CHINA[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 89-95,100. doi: 10.13205/j.hjgc.202101013

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MOBILE MEASUREMENT OF AMBIENT VOLATILE ORGANIC COMPOUNDS IN THE JIANGBEI CHEMICAL INDUSTRIAL PARK OF NANJING, CHINA

doi: 10.13205/j.hjgc.202101013

Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China

Received Date: 2020-01-12
Available Online: 2021-04-23

Abstract

Abstract

Volatile organic compounds (VOCs) are a group of air pollutants with potentially adverse health effects, and also important precursors of both secondary organic aerosols and ozone. In this work, an online single photon ionization mass spectrometer (SPI-MS) was installed on a vehicle, and for the first time, we conducted a four-day mobile measurement of VOCs in the Nangjing Jiangbei Chemical Industry Park during March 2018. During the sampling period, the average concentration of total VOCs was 133.3 μg/m³, nighttime mean concentration (143.6 μg/m³) was higher than that during daytime (123.1 μg/m³), and mean mass concentration of workdays (226.7 μg/m³) was found to be much higher than that of weekend (39.9 μg/m³). We also obtained highly time-and spatially-resolved distributions of VOCs, and elucidated the characteristic species, and variations and dominant sources (factories) of the three key zones (Nangang Nanhua, Yangzi Shihua, and Huagong Dadao). Overall, alkanes and aromatics were the major contributors (both 31%) of the total VOCs, followed by alkenes (25%) and halocarbons (13%); while in terms of ozone formation potential, alkenes was the largest contributor (56%), followed by aromatics (32%), alkanes (9%) and halocarbons (3%). Our findings here could provide useful insights and guidances into the VOCs reduction measures and local ozone pollution control.
- mobile measurement,
- volatile organic compounds (VOCs),
- ozone formation potential (OFP)

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