Pollution Characteristics and Health Risk Assessment of Summertime Atmospheric Volatile Halogenated Hydrocarbons in a Typical Urban Area of Beijing, China

Ji, Yuanyuan; Xu, Lu; Li, Hong; Chuhan, Wang; Xu, Dongyan; Li, Lei; Zhang, Hao; Duan, Jiali; Zhang, Yujie; Wang, Xuezhong; Zhang, Weiqi; Bi, Fang; Chen, Yizhen; Yu, Yongtae; Meng, Liuyan

doi:10.3390/atmos11101021

Cited by 8 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…EF represents the error fraction, which is related to the analysis error, chemical activity, and species concentrations. According to some suggested values in recent studies (Ji et al, 2020;Wu et al, 2020b;Xie et al, 2021), it was set to 0.15 for automatic measurements and 0.25 for manual measurements in this study.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Characteristics of VOCs and their Potentials for O3 and SOA Formation in a Medium-sized City in Eastern China

Chen

Zhao

Wang

et al. 2022

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

To understand the characteristics and environmental effects of volatile organic compounds (VOCs) in a typical medium-sized city in China, manual measurements including 56 species of the nonmethane hydrocarbons (NMHCs) were taken at three urban and suburban sites in Huai'an from April to September 2019, and automatic measurements including 106 species of VOCs were taken at the urban center in May and August 2019. Spatial and temporal characteristics of the VOC concentrations were analyzed. Positive matrix factorization (PMF) model was applied to apportion VOC sources. Ozone (O3) formation potentials (OFPs) and secondary organic aerosol (SOA) formation potentials (SOAFPs) were calculated. The results show that the mean VOC concentration was much lower in the urban center than in the suburbs. Generally, proportions of both alkenes and aromatic hydrocarbons were higher and proportion of alkanes was lower in Huai'an than that in big cities, indicating emissions from solvent usage and industrial process play a more important role in the medium-sized city. The results of source apportionment show that solvent usage and industrial process together contributed 53%, and vehicle emission contributed 27% to the ambient VOCs. The dependence of VOC concentrations on temperature indicates that a considerable part of VOCs may come from fugitive emissions. The two-peak pattern of diurnal variation suggests near-surface emissions contributed a lot to the VOCs. Aromatic hydrocarbons were identified as the key component to the formation of O3 and SOA. Furthermore, biogenic emission could contribute greatly (>20%) to the ambient VOCs during daytime in summer, which may have significant effects on O3 formation. Aromatic hydrocarbons were identified as the key component to the formation of O3 and SOA, which should be given more attention in developing air pollution control strategies.

show abstract

Section: Accepted Manuscriptmentioning

confidence: 99%

Characteristics of VOCs and their Potentials for O3 and SOA Formation in a Medium-sized City in Eastern China

Chen

Zhao

Wang

et al. 2022

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…As PAHs are a semi-volatile pollutant, the atmosphere is the main receptor and transmission and diffusion channel for the emissions of PAHs, as well as an important reservoir of PAHs. The atmosphere is the most important environmental medium in the migration and transformation of PAHs, and is also the most important medium of human exposure to PAHs pollution [ 29 , 30 , 31 ]. PAHs in the atmosphere mainly come from pollutant emissions of industrial areas such as coking plants and incomplete combustion of civil coal-fired boilers [ 32 , 33 ].…”

Section: The Spatial Distribution and Migration Of Pahsmentioning

confidence: 99%

Contemporary Research Progress on the Detection of Polycyclic Aromatic Hydrocarbons

Zhang

Yuan

et al. 2022

IJERPH

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) are a class of the most common and widespread contaminants. The accumulation of PAHs has made a certain impact on the environment and is seriously threatening human health. Numerous general analytical methods suitable for PAHs were developed. With the development of economy, the environmental problems of PAHs in modern society are more extensive and prominent, and attract more attention from environmental scientists and analysts. Deeper understanding of the properties of PAHs depends on the advent of detection methods, which can also be more conducive to promoting the protection of the environment. Till now, more sensitive, more high-speed and more high-throughput analytical tools are being invented and have played important roles in the research of PAHs. In this short review article, we focused mainly on the contemporary analytical methods about PAHs. We started with a brief review on the hazards, migration, distribution and traditional analysis methods of PAHs in recent years, including liquid chromatography, gas chromatography, surface enhanced Raman spectroscopy and so on. We also presented the applications of the modern ambient mass spectrometry, especially microwave plasma torch mass spectrometry, in the detection of PAHs, as well as the far out novel results in our lab by using microwave plasma torch (MPT) mass spectrometry; for example, some new insights about Birch reduction, regular hydrogen addition and the robustness of molecular structure. These studies have demonstrated the versatility of MPT MS as a platform in the research of PAHs.

show abstract

“…The methodology has been widely accepted for human health assessment worldwide. [48][49][50][51][52][53] The health risk assessment was divided into a carcinogenic risk assessment and a non-carcinogenic risk assessment. The carcinogenic risk was measured by the lifetime carcinogenic risk (risk, dimensionless); the non-carcinogenic risk was measured by the hazard index (HI, dimensionless).…”

Section: Carcinogenic and Non-carcinogenic Health Risk Assessment Met...mentioning

confidence: 99%

Air pollution characteristics and human health risk assessment of underground parking garages in Xi’an, China

Wang

Huang

et al. 2022

Indoor and Built Environment

View full text Add to dashboard Cite

Due to the rapid increase of population density and automobile vehicle numbers in mega-cities, large underground garages have become universal supporting facilities to meet the demand for parking spaces in the recently-built commercial complexes and high-rise residential communities. Natural ventilation was insufficient to discharge vehicle-induced pollutants out of the enclosed underground spaces, which could pose a potential threat to people’s health. This study aims to determine the spatial and temporal distribution characteristics of pollutants concentration and the health risk of underground parking garages (UPGs)’ staff and users. Field measurements were conducted on the air pollutants concentrations and the users’ exposure characteristics in 11 commercial UPGs and three high-rise residential UPGs with natural ventilation in Xi’an. The pollutants concentrations were higher in the afternoon and morning of commercial and high-rise residential UPGs. In general, the particulate matters (PM2.5 and PM10), HCHO, TVOC and BTEX (benzene, toluene, ethylbenzene and xylenes) concentrations in commercial and residential UPGs were 0.069/0.067 mg/m³, 0.12/0.097 mg/m³, 0.014/0.017 mg/m³, 1.8/1.8 mg/m³, 0.056/0.10 mg/m³, 0.19/0.29 mg/m³ and 0.41/0.49 mg/m³, respectively. TVOC and BTEX concentrations in UPGs significantly correlated with traffic volume ( p < 0.01). In different groups, the entropy values of carcinogenic and non-carcinogenic risks were: staffs > children travelling with adults > adults. In particular, occupational long-term (employee) exposure could lead to both carcinogenic and non-carcinogenic risks.

show abstract

Pollution Characteristics and Health Risk Assessment of Summertime Atmospheric Volatile Halogenated Hydrocarbons in a Typical Urban Area of Beijing, China

Cited by 8 publications

References 27 publications

Characteristics of VOCs and their Potentials for O3 and SOA Formation in a Medium-sized City in Eastern China

Characteristics of VOCs and their Potentials for O3 and SOA Formation in a Medium-sized City in Eastern China

Contemporary Research Progress on the Detection of Polycyclic Aromatic Hydrocarbons

Air pollution characteristics and human health risk assessment of underground parking garages in Xi’an, China

Contact Info

Product

Resources

About