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1. Temporal and spatial variations of air pollution across China from 2015 to 2018

Author:
Zhou, Xiaoteng; Strezov, Vladimir; Jiang, Yijiao; Kan, Tao; Evans, Tim
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 161-169
ISSN:
1001-0742
Subject:
air pollution; air quality,   etc   ; ; coal; iron; steel; traffic; China;     Show all 8 Subjects
Abstract:
... This study investigated concentrations of PM₂.₅, PM₁₀, SO₂, NO₂, CO and O₃, and air quality index (AQI) values across 368 cities in mainland China during 2015–2018. The study further examined relationships of air pollution status with local industrial capacities and vehicle possessions. Strong correlations were found between industrial capacities (coal, pig iron, crude steel and rolled steel) and ...
DOI:
10.1016/j.jes.2021.04.025

2. An optimized approach for estimating benzene in ambient air within an air quality monitoring network

Author:
Galán-Madruga, David; García-Cambero, Jesús P.
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 164-174
ISSN:
1001-0742
Subject:
air; air pollutants; air quality,   etc   ; benzene; carcinogenicity; laws and regulations; neural networks; solar radiation; temperature; China;     Show all 10 Subjects
Abstract:
... Benzene is a carcinogenic air pollutant for which European legislation has set an annual limit and criteria for the number of fixed monitoring sites within air quality networks (AQMN). However, due to the limited number of fixed sites for benzene measurement, exposure data are lacking. Considering the relationship between benzene levels and other variables monitored within an AQMN, such as NO₂, O₃ ...
DOI:
10.1016/j.jes.2021.03.005

3. Characterization and source identification of submicron aerosol during serious haze pollution periods in Beijing

Author:
Xu, Peng; Yang, Yuan; Zhang, Junke; Gao, Wenkang; Liu, Zirui; Hu, Bo; Wang, Yuesi
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 25-37
ISSN:
1001-0742
Subject:
air quality,   etc   ; aerosols; human health; nitrates; pollution; sulfates; China;     Show all 7 Subjects
Abstract:
... Submicron aerosol is of extensive concern not only due to its significant impact on air quality but also because it is detrimental to human health. In this study, we investigated the characteristics, sources and chemical processes of submicron aerosol based on real-time online measurements of submicron aerosols (NR-PM₁) during December 2015 at an urban site in Beijing. The average mass concentrati ...
DOI:
10.1016/j.jes.2021.04.005

4. Enhanced mixing state of black carbon with nitrate in single particles during haze periods in Zhengzhou, China

Author:
Zhou, Qianni; Cheng, Chunlei; Yang, Suxia; Yuan, Minghao; Meng, Jingjing; Gong, Haifeng; Zhong, Qien; Zhang, Yao; Xie, Yutong; Zhou, Zhen; Li, Mei
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 185-196
ISSN:
1001-0742
Subject:
air quality,   etc   ; absorption; aerosols; carbon; climate change; nitrates; spectrometers; China;     Show all 8 Subjects
Abstract:
... Black carbon (BC) plays an important role in air quality and climate change, which is closely associated with its mixing state and chemical compositions. In this work the mixing state of BC-containing single particles was investigated to explore the evolution process of ambient BC particles using a single particle aerosol mass spectrometer (SPAMS) in March 2018 in Zhengzhou, China. The BC-containi ...
DOI:
10.1016/j.jes.2021.03.031

5. Background concentrations of Argon-39 in shallow soil gas

Author:
Fritz, B.G.; Alexander, T.R.; Johnson, C.M.; Mace, E.K.; Milbrath, B.D.; Hayes, J.C.
Source:
Journal of environmental radioactivity 2021 v.228 pp. 106513
ISSN:
0265-931X
Subject:
air; soil air,   etc   ; radioactivity;     Show all 3 Subject
Abstract:
... While radioisotopes of noble gases are known to be indicators of underground nuclear explosions (UNE), McIntyre et al. (2017) was the first to report the presence of ³⁹Ar in shallow soil gas in association with a decades old UNE. While this finding hinted at the potential application of ³⁹Ar to be used as an indicator of a UNE, doing so would also require an understanding of the natural concentrat ...
DOI:
10.1016/j.jenvrad.2020.106513

6. Atmospheric particle-bound polycyclic aromatic compounds over two distinct sites in Pakistan: Characteristics, sources and health risk assessment

Author:
Maharjan, Linda; Kang, Shichang; Tripathee, Lekhendra; Gul, Chaman; Zheng, Huijun; Li, Quanlian; Chen, Pengfei; Rai, Mukesh; Santos, Ewerton
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 1-15
ISSN:
1001-0742
Subject:
air; air pollutants,   etc   ; ; biomass; carcinogenicity; combustion; guidelines; health effects assessments; human health; monsoon season; mutagens; principal component analysis; risk; temperature; traffic; volatilization; winter; Arabian Sea; China; Pakistan;     Show all 20 Subjects
Abstract:
... Much attention is drawn to polycyclic aromatic hydrocarbons (PAHs) as an air pollutant due to their toxic, mutagenic and carcinogenic properties. Therefore, to understand the levels, seasonality, sources and potential health risk of PAHs in two distinct geographical locations at Karachi and Mardan in Pakistan, total suspended particle (TSP) samples were collected for over one year period. The aver ...
DOI:
10.1016/j.jes.2021.04.024

7. Exploring the impact of new particle formation events on PM2.5 pollution during winter in the Yangtze River Delta, China

Author:
Ou, Jinping; Hu, Qihou; Liu, Haoran; Xu, Shiqi; Wang, Zhuang; Ji, Xiangguang; Wang, Xinqi; Xie, Zhouqing; Kang, Hui
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 75-83
ISSN:
1001-0742
Subject:
air quality,   etc   ; climate; oxidation; ozone; particulates; pollution; relative humidity; river deltas; winter; China; Yangtze River;     Show all 11 Subjects
Abstract:
... New particle formation (NPF) events are an increasingly interesting topic in air quality and climate science. In this study, the particle number size distributions, and the frequency of NPF events over Hefei were investigated from November 2018 to February 2019. The proportions of the nucleation mode, Aitken mode, and accumulation mode were 24.59%, 53.10%, and 22.30%, respectively, which indicates ...
DOI:
10.1016/j.jes.2021.01.005

8. Variations in characteristics and transport pathways of PM2.5 during heavy pollution episodes in 2013–2019 in Jinan, a central city in the north China Plain

Author:
Wang, Gang; Zhu, Zhongyi; Zhao, Na; Wei, Peng; Li, Guohao; Zhang, Hanyu
Source:
Environmental pollution 2021 v.284 pp. 117450
ISSN:
0269-7491
Subject:
air; air flow; air quality,   etc   ; aerodynamics; aerosols; pollution; China;     Show all 7 Subjects
Abstract:
... The characteristics and transport pathways of air masses vary during heavy pollution episodes (HPEs). Three categories of HPEs have been defined: HPE Ι, II, and III, corresponding to HPE durations of 1, 2, and at least 3 days, respectively. Sixty HPEs were investigated in this study. The number of HPEs decreased from 2013 to 2017 and then increased from 2017 to 2019, dominated by emission reductio ...
DOI:
10.1016/j.envpol.2021.117450

9. A two-year assessment of particulate air pollution and sources in Kuwait

Author:
Alahmad, Barrak; Al-Hemoud, Ali; Kang, Choong-Min; Almarri, Fhaid; Kommula, Venkateswarlu; Wolfson, Jack M.; Bernstein, Aaron S.; Garshick, Eric; Schwartz, Joel; Koutrakis, Petros
Source:
Environmental pollution 2021 v.282 pp. 117016
ISSN:
0269-7491
Subject:
air; air pollution; air quality,   etc   ; arid zones; compliance; dust; Kuwait;     Show all 7 Subjects
Abstract:
... Kuwait and the Gulf region have a desert, hyper-arid and hot climate that makes outdoor air sampling challenging. The region is also affected by intense dust storms. Monitoring challenges from the harsh climate have limited data needed to inform appropriate regulatory actions to address air pollution in the region.To compare gravimetric measurements with existing networks that rely on beta-attenua ...
DOI:
10.1016/j.envpol.2021.117016

10. Bias correcting and extending the PM forecast by CMAQ up to 7 days using deep convolutional neural networks

Author:
Sayeed, Alqamah; Lops, Yannic; Choi, Yunsoo; Jung, Jia; Salman, Ahmed Khan
Source:
Atmospheric environment 2021 v.253 pp. 118376
ISSN:
1352-2310
Subject:
air; air pollution; air quality,   etc   ; environment; human health; neural networks;     Show all 6 Subjects
Abstract:
... With rising levels of air-pollution, air-quality forecasting has become integral to the dissemination of human health advisories and the preparation of mitigation strategies. To achieve more accurate forecasts, researchers around the globe are developing mathematical modeling techniques to obtain more accurate forecasts. In this study, we explore the capabilities of a deep neural network (DNN) mod ...
DOI:
10.1016/j.atmosenv.2021.118376

11. Assessing local emission for air pollution via data experiments

Author:
Zhu, Yuru; Liang, Yinshuang; Chen, Song Xi
Source:
Atmospheric environment 2021 v.252 pp. 118323
ISSN:
1352-2310
Subject:
air; air pollution; air quality,   etc   ; algorithms; environment; transportation; China;     Show all 7 Subjects
Abstract:
... Although air pollution is largely due to anthropogenic emission, the observed pollution levels in a city are confounded by meteorological conditions and regional transportation of pollutants. However, effective air quality management requires measures for local emissions of the city. With a data selection algorithm, we choose calm episodes after strong cleaning processes to measure the growth of t ...
DOI:
10.1016/j.atmosenv.2021.118323

12. Air pollution and occupational accidents in the Community of Madrid, Spain

Author:
Vega-Calderón, Luis; Almendra, Ricardo; Fdez-Arroyabe, Pablo; Zarrabeitia, María T.; Santurtún, Ana
Source:
International journal of biometeorology 2021 v.65 no.3 pp. 429-436
ISSN:
0020-7128
Subject:
air pollutants; air pollution; air quality,   etc   ; bioclimatology; models; risk; Spain;     Show all 7 Subjects
Abstract:
... Spain is the EU member country with the third highest total number of accidents in work and has the third highest incidence rate. We have performed a descriptive analysis of occupational accidents in the Community of Madrid (Spain) between 2005 and 2013 to study the impact of air quality on the prevalence of occupational accidents, clarifying how vulnerable to air pollution outdoor workers are. In ...
DOI:
10.1007/s00484-020-02027-3

13. Air pollutant emission characteristics and HYSPLIT model analysis during heating period in Shenyang, China

Author:
Ma, Yunfeng; Wang, Maibo; Wang, Shuai; Wang, Yue; Feng, Lei; Wu, Kaiyu
Source:
Environmental monitoring and assessment 2021 v.193 no.1 pp. 9
ISSN:
0167-6369
Subject:
air; air pollutants; air pollution,   etc   ; models; particulates; weather; China;     Show all 7 Subjects
Abstract:
... To find out the characteristics and sources of atmospheric pollutants during heating period in Shenyang, the study investigated the temporal and spatial distribution of pollutants, using data of six typical atmospheric pollutants (SO₂, NO₂, PM₁₀, PM₂.₅, O₃, and CO) from November 2017 to March 2018 in 11 monitoring stations in Shenyang. These features were combined with the HYSPLIT model for backwa ...
DOI:
10.1007/s10661-020-08767-4

14. Annual nonmethane hydrocarbon trends in Beijing from 2000 to 2019

Author:
Yao, Dan; Tang, Guiqian; Sun, Jie; Wang, Yinghong; Yang, Yuan; Wang, Yiming; Liu, Baoxian; He, Hong; Wang, Yuesi
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 210-217
ISSN:
1001-0742
Subject:
air pollution,   etc   ; alkenes; aromatic compounds; energy use and consumption; evolution; ozone; pollution control; solvents; temporal variation; China;     Show all 10 Subjects
Abstract:
... High loads of ground-level ozone have occurred with the implementation of the Air Pollution Prevention and Control Action Plan. However, the long temporal variation in precursor nonmethane hydrocarbons (NMHCs) has rarely been studied. In this study, we examined the evolution of NMHCs in Beijing based on ambient measurements from 2000 to 2019. The results indicated that the annual variation of ambi ...
DOI:
10.1016/j.jes.2021.04.017

15. Film mulching reduces antibiotic resistance genes in the phyllosphere of lettuce

Author:
Deng, Beiqi; Li, Wen; Lu, Huijie; Zhu, Lizhong
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 121-128
ISSN:
1001-0742
Subject:
air,   etc   ; Pseudomonas; antibiotic resistance; antibiotic resistance genes; flagellum; horizontal gene transfer; lettuce; multiple drug resistance; phyllosphere; polymers; rhizosphere; soil; China;     Show all 13 Subjects
Abstract:
... Phyllosphere is an important reservoir of antibiotic resistance genes (ARGs), but the transfer mechanism of ARGs from soil and air to phyllosphere remains unclear. This study demonstrated that soil-air-phyllosphere was the dominant ARG transfer pathway, and blocking it by film mulching can reduce typical phyllosphere ARGs in lettuce by 80.7% - 98.7% (89.5% on average). To further eliminate phyllos ...
DOI:
10.1016/j.jes.2021.04.032

16. Ambient volatile organic compounds at a receptor site in the Pearl River Delta region: Variations, source apportionment and effects on ozone formation

Author:
Meng, Yao; Song, Junwei; Zeng, Lewei; Zhang, Yingyi; Zhao, Yan; Liu, Xufei; Guo, Hai; Zhong, Liuju; Ou, Yubo; Zhou, Yan; Zhang, Tao; Yue, Dingli; Lai, Senchao
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 104-117
ISSN:
1001-0742
Subject:
air,   etc   ; aromatic compounds; diurnal variation; evaporation; gasoline; models; ozone; pollution; river deltas; rivers; solvents; volatile organic compounds; China;     Show all 13 Subjects
Abstract:
... We present the continuously measurements of volatile organic compounds (VOCs) at a receptor site (Wan Qing Sha, WQS) in the Pearl River Delta (PRD) region from September to November of 2017. The average mixing ratios of total VOCs (TVOCs) was 36.3 ± 27.9 ppbv with the dominant contribution from alkanes (55.5%), followed by aromatics (33.3%). The diurnal variation of TVOCs showed a strong photochem ...
DOI:
10.1016/j.jes.2021.02.024

17. NLRP3 inflammasome activation determines the fibrogenic potential of PM2.5 air pollution particles in the lung

Author:
Cao, Wei; Wang, Xiang; Li, Jiulong; Yan, Ming; Chang, Chong Hyun; Kim, Joshua; Jiang, Jinhong; Liao, Yu-Pei; Tseng, Shannon; Kusumoputro, Sydney; Lau, Candice; Huang, Marissa; Han, Pengli; Lu, Pengju; Xia, Tian
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 429-441
ISSN:
1001-0742
Subject:
air pollution,   etc   ; ; cathepsin B; collagen; cytotoxicity; epithelium; fibrosis; humans; inflammasomes; inflammation; lungs; macrophages; particulates; pulmonary fibrosis; China;     Show all 15 Subjects
Abstract:
... Airborne fine particulate matter (PM₂.₅) is known to cause respiratory inflammation such as chronic obstructive pulmonary disease and lung fibrosis. NLRP3 inflammasome activation has been implicated in these diseases; however, due to the complexity in PM₂.₅ compositions, it is difficult to differentiate the roles of the components in triggering this pathway. We collected eight real-life PM₂.₅ samp ...
DOI:
10.1016/j.jes.2021.04.021

18. Volumetric monitoring of airborne particulate matter concentration using smartphone-based digital holographic microscopy and deep learning

Author:
Kim, Jihwan; Go, Taesik; Lee, Sang Joon
Source:
Journal of hazardous materials 2021 v.418 pp. 126351
ISSN:
0304-3894
Subject:
air; air quality,   etc   ; microscopy; particulates; public health;     Show all 5 Subjects
Abstract:
... Airborne particulate matter (PM) has become a global environmental issue. This PM has harmful effects on public health and precision industries. Conventional air-quality monitoring methods usually utilize expensive equipment, and they are cumbersome to handle for accurate and high throughput measurements. In addition, commercial particle counters have technical limitations in high-concentration me ...
DOI:
10.1016/j.jhazmat.2021.126351

19. Numerical study of building pressure cycling to generate sub-foundation aerobic barrier for mitigating petroleum vapor intrusion

Author:
Liu, Yanqiu; Verginelli, Iason; Yao, Yijun
Source:
The Science of the total environment 2021 v.779 pp. 146460
ISSN:
0048-9697
Subject:
air; soil air,   etc   ; mathematical models; petroleum; vapors;     Show all 5 Subjects
Abstract:
... In this study, the role of building pressure cycling (BPC) method in generating a subslab aerobic barrier at petroleum contaminated sites was examined numerically. The numerical model was first validated with field observations and then used to simulate BPC applications in petroleum vapor intrusion scenarios. The results indicated that, after a long-term BPC operation (60 days), a subslab aerobic ...
DOI:
10.1016/j.scitotenv.2021.146460

20. Development of a feedback control system for a differential biofilter degrading toluene contaminated air

Author:
Dang, Quang A.; Gostomski, Peter A.
Source:
Chemosphere 2021 v.275 pp. 129822
ISSN:
0045-6535
Subject:
air; air pollution,   etc   ; biofilters; soil; toluene;     Show all 5 Subjects
Abstract:
... In this study, a proportional – integral feedback control system was implemented on a lab-scale differential biofilter to control the gas phase toluene concentration in the soil bed through online manipulation of the inlet toluene concentration. The feedback control system was based on a cascade controller that manipulated the setpoint of an air bath diffusion system to manipulate the inlet toluen ...
DOI:
10.1016/j.chemosphere.2021.129822