Characteristics and sources analysis of ambient volatile organic compounds in a typical industrial park: Implications for ozone formation in 2022 Asian Games

Lü, Yu; Pang, Xiaobing; Lyu, Yan; Li, Jingjing; Xing, Bo; Chen, Jianmeng; Mao, Yiping; Shang, Qianqian; Wu, Haonan

doi:10.1016/j.scitotenv.2022.157746

Cited by 13 publications

(9 citation statements)

References 50 publications

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“…Factor 3 was assigned to solvent usage and characterized by a high proportion of halogenated hydrocarbons and trimethylbenzene. Vinyl chloride, n -propanol, chlorobenzene, and trichloroethylene are important volatile chemical products (VCP) produced in the solvent usage associated industrial processes [ 72 , 73 ]. At this point, VCP emissions should be paid more attention because VCP is generated from enhanced industrial activities.…”

Section: Resultsmentioning

confidence: 99%

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Cao,

Men,

Zhang

et al. 2024

Toxics

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The chemical complexity and toxicity of volatile organic compounds (VOCs) are primarily encountered through intensive anthropogenic emissions in suburban areas. Here, pollution characteristics, impacts on secondary pollution formation, and health risks were investigated through continuous in-field measurements from 1–30 June 2020 in suburban Nanjing, adjacent to national petrochemical industrial parks in China. On average, the total VOCs concentration was 34.47 ± 16.08 ppb, which was comprised mostly by alkanes (41.8%) and halogenated hydrocarbons (29.4%). In contrast, aromatics (17.4%) dominated the ozone formation potential (OFP) and secondary organic aerosol formation potential (SOAFP) with 59.6% and 58.3%, respectively. Approximately 63.5% of VOCs were emitted from the petrochemical industry and from solvent usage based on source apportionment results, followed by biogenic emissions of 22.3% and vehicle emissions of 14.2%. Of the observed 46 VOC species, hexachlorobutadiene, dibromoethane, butadiene, tetrachloroethane, and vinyl chloride contributed as high as 98.8% of total carcinogenic risk, a large fraction of which was ascribed to the high-level emissions during ozone pollution episodes and nighttime. Therefore, the mitigation of VOC emissions from petrochemical industries would be an effective way to reduce secondary pollution and potential health risks in conurbation areas.

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Section: Resultsmentioning

confidence: 99%

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Cao,

Men,

Zhang

et al. 2024

Toxics

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“…[38]. The concentration of CO and NO 2 was reduced to the minimum value at 14:00 p.m., the time of day when the temperature was the highest and solar radiation was stronger, and NO X and hydrocarbons reacted with each other to form ozone under the action of ultraviolet light, thus reducing NO 2 concentrations [39]. The increase in atmospheric boundary layer height was also conducive to pollutant dispersion.…”

Section: Temporal Variability Of Trapsmentioning

confidence: 97%

Temporal Variations and Spatial Distribution of Air Pollutants in Shaoxing, a City in Yangtze Delta, China Based on Mobile Monitoring Using a Sensor Package

Zhao

Pang

Li³

et al. 2023

Atmosphere

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Currently, traffic-related sources are considered to be one of the major contributors to air pollutants in urban areas. As the number of motor vehicles increases, the impact of traffic-related air pollutants (TRAPs) on human health has also increased in recent years. People are easily exposed to TRAPs in their daily lives. However, long-term exposure to TRAPs can have adverse health effects. Mobile monitoring is more flexible compared to traditional urban monitoring stations and can effectively obtain the spatial variation characteristics of air pollutants. We mounted a sensor package on an electric bicycle and conducted mobile measurements of CO, NO2 and SO2 on a circular road in the center of Shaoxing, a city in the center of the Yangtze Delta, China. The CO, NO2 and SO2 concentrations were observed to be higher in the morning and evening rush hours, and the three pollutants show different seasonal and spatial variation characteristics. CO concentration was higher in urban arterial and crossroads. NO2 concentration was variable, alternating between high and low concentrations. SO2 concentration was relatively stable and aggregated. This study provides important information on the spatial and temporal variations of TRAPs, which helps commuters understand how to effectively reduce pollutant exposure during personal travel.

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“…The formation of PM 2.5 and O 3 was traditionally investigated using the Community Multiscale Air Quality model, box model, and observation‐based model (He et al., 2019; Y. Lu et al., 2022; Y. Tan et al., 2018). Chemical precursors and typical meteorological conditions such as tropical cyclones were reported to be linked with ozone pollution (Chen et al., 2022; Ouyang et al., 2022; N. Wang et al., 2022).…”

Section: Introductionmentioning

confidence: 99%

“…The formation of PM 2.5 and O 3 was traditionally investigated using the Community Multiscale Air Quality model, box model, and observation-based model (He et al, 2019;Y. Lu et al, 2022;Y.…”

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confidence: 99%

Co‐Occurring Extremes of Fine Particulate Matter (PM_2.5) and Ground‐Level Ozone in the Summer of Southern China

Lyu,

Wu,

Liu

et al. 2024

Geophysical Research Letters

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Concurrent pollution of fine particulate matter (PM2.5) and ozone has been increasingly reported in China recently. Here, we further confirm widespread co‐occurring summertime PM2.5‐ozone extremes in southern China. Annual‐average frequency of co‐occurrence is above 50% from 2015 to 2022, especially in Pearl River Delta region (72 ± 12%). The spatial extent (city numbers) and temporal persistence (co‐occurrence days) for cities with co‐occurrence frequency >50% increase at a rate of two cities/year and 14 days/year, respectively. We further identify typical synoptic conditions (e.g., typhoon periphery circulation, West Pacific subtropical high) conducive to widespread co‐occurrence. Through combining multi‐source data, Random Forest model well predicts PM2.5‐ozone co‐occurrence and identifies common precursors (e.g., volatile organic compounds) as important variables. Finally, we postulate co‐occurrence is linked to synoptic conditions and secondary generation of PM2.5‐ozone from shared precursors. Our results suggest high potentials for co‐occurring PM2.5‐ozone extremes in southern China and control strategies on common precursors to mitigate concurrent pollution.

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Characteristics and sources analysis of ambient volatile organic compounds in a typical industrial park: Implications for ozone formation in 2022 Asian Games

Cited by 13 publications

References 50 publications

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Temporal Variations and Spatial Distribution of Air Pollutants in Shaoxing, a City in Yangtze Delta, China Based on Mobile Monitoring Using a Sensor Package

Co‐Occurring Extremes of Fine Particulate Matter (PM_2.5) and Ground‐Level Ozone in the Summer of Southern China

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Characteristics and sources analysis of ambient volatile organic compounds in a typical industrial park: Implications for ozone formation in 2022 Asian Games

Cited by 13 publications

References 50 publications

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Significance of Volatile Organic Compounds to Secondary Pollution Formation and Health Risks Observed during a Summer Campaign in an Industrial Urban Area

Temporal Variations and Spatial Distribution of Air Pollutants in Shaoxing, a City in Yangtze Delta, China Based on Mobile Monitoring Using a Sensor Package

Co‐Occurring Extremes of Fine Particulate Matter (PM2.5) and Ground‐Level Ozone in the Summer of Southern China

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Product

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Co‐Occurring Extremes of Fine Particulate Matter (PM_2.5) and Ground‐Level Ozone in the Summer of Southern China