Article
Environmental Sciences
Amber L. Kramer, Shelby Dorn, Allison Perez, Courtney Roper, Ivan A. Titaley, Kaylee Cayton, Ronald P. Cook, Paul H-Y Cheong, Staci L. Massey Simonich
Summary: This study measured the oxidative potential of 135 individual PAHs in PM2.5 and found a mismatch between DTT50 results and computed reduction potential values. The GINI equality index correlated with Delta G(rxn) values, indicating a link between electron dispersion and thermodynamic reactions in PAHs. The additive prediction model did not accurately predict the DTT consumption in the assay, suggesting a more complex toxicity model for PAHs in ambient PM2.5.
ENVIRONMENTAL POLLUTION
(2021)
Article
Public, Environmental & Occupational Health
Seth McCormick, John E. Snawder, I-Chen Chen, Jonathan Slone, Antonia M. Calafat, Yuesong Wang, Lei Meng, Marissa Alexander-Scott, Michael Breitenstein, Belinda Johnson, Juliana Meadows, Cheryl Fairfield Estill
Summary: This study investigated the occupational exposure levels of PAHs among RCTS workers, finding that their air and skin concentrations were significantly higher than previous levels for asphalt workers, further confirming the potential risks associated with PAH exposure.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2022)
Article
Environmental Sciences
Yunxuan Gu, Hongmei Xu, Rong Feng, Bin Zhang, Min Gao, Jian Sun, Zhenxing Shen, Linli Qu, Steven Sai Hang Ho, Junji Cao
Summary: This study examined the personal exposure (PE) to polycyclic aromatic hydrocarbons (PAHs) and their derivatives in particulate matter (PM2.5 and PM0.25) among rural housewives in the Fenwei Plain, China. The results showed that housewives using biomass as fuel experienced higher potential health impacts compared to those using coal. The findings also revealed associations between exposure to different classes of PAHs and health hazards.
ENVIRONMENTAL POLLUTION
(2023)
Review
Biodiversity Conservation
Lochan Singh, Tripti Agarwal
Summary: This review summarizes studies on polycyclic aromatic hydrocarbons (PAHs) from cooking activities worldwide, highlighting gaps and challenges in existing knowledge, and emphasizing the need for standardized methods for future policy development.
HUMAN AND ECOLOGICAL RISK ASSESSMENT
(2022)
Article
Public, Environmental & Occupational Health
Andrew P. W. Banks, Phong Thai, Michelle Engelsman, Xianyu Wang, Andres F. Osorio, Jochen F. Mueller
Summary: Firefighters are exposed to a variety of chemicals, including PAHs, when attending fire scenes. Exposure to PAHs was higher in particleboard fires compared to diesel pan fires. Urinary OH-PAH metabolites can be used to observe PAH exposure in compartment burns with high concentrations of PAHs, such as in particleboard fires. Overall, urinary OH-PAH concentrations were relatively low considering the potential exposure in these burns, suggesting that protective equipment and decontamination measures are effective in controlling exposure.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2021)
Article
Engineering, Environmental
Qianqian Gao, Xiaojing Zhu, Qihuang Wang, Kaili Zhou, Xiaohui Lu, Zimeng Wang, Xiaofei Wang
Summary: In this study, dust aerosols were generated in the laboratory using soils with various physicochemical properties, and the concentrations of PAHs in the soils and generated dust aerosol were measured. The enrichment factors (EFs) of PAHs were found to be influenced by soil texture, PAH contamination level, molecular weight of PAH species, and aerosol sizes. PAHs with higher EFs usually had higher molecular weights. Furthermore, there was a positive correlation between EFs of PAHs in different particle sizes and the total organic carbon content of dust aerosol.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Wei Jin, Yuan Li, Li Lu, Dong Zhang, Shanying He, Jiali Shentu, Qiwei Chai, Lei Huang
Summary: The comprehensive water quality index (CWQI) is a mathematical statistic that reflects the pollution status of rivers based on several water quality indicators. This study established a CWQI for a typical river in eastern China, using 1-year monitoring data from 20 sampling sets. The predicted CWQI for each monitoring section indicates that most sections are moderately polluted, with some sections being seriously polluted. The analysis shows that TN, n-ary sumation PAHs, and n-ary sumation n-Alks are the main factors influencing water quality, particularly due to the impact of petroleum hydrocarbons in the middle and lower reaches.
SCIENTIFIC REPORTS
(2022)
Article
Food Science & Technology
Eunice Konadu Asamoah, Francis Kofi Ewusie Nunoo, Samuel Addo, Josephine O. Nyarko, Grethe Hyldig
Summary: The study found that the PAH4 concentrations in AGFS-smoked products were below the EU maximum limits, while those from the traditional Cabin and Chorkor kilns exceeded the limits, with Chorkor having the highest concentrations. Based on the average consumption frequency and quantities of Ghanaian adults, the potential carcinogenic risks were lowest in gas-smoked products and highest in products smoked using traditional methods.
Article
Environmental Sciences
Agnieszka Krzyszczak, Michal P. Dybowski, Magdalena Konczak, Bozena Czech
Summary: In recent years, there has been significant progress in the study of thermal transformation of waste into valuable materials such as biochar. High-temperature processes can lead to the formation of toxic polycyclic aromatic hydrocarbons (PAHs). However, the pyrolysis process can also result in the formation of derivatives containing oxygen, nitrogen, or sulfur, which may have higher toxicity than parent PAHs. The bioavailability of PAHs is an important parameter in the agricultural application of carbonaceous materials.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Dimitri Bacco, Giorgia Demaria, Mara Russo, Fabiana Scotto, Arianna Trentini
Summary: The concentrations of polycyclic aromatic hydrocarbons (PAHs) and quinones in PM2.5 samples collected in Bologna, Italy during warm and cold seasons were compared. It was found that the PAHs concentration was higher in winter, while the quinone level remained constant throughout the year. The oxidative potential (OP) of the PM2.5 samples also showed a seasonal variation, with higher values in winter.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Rupa Rani, Abhidha Kela, Geeta Dhaniya, Kamini Arya, Amit K. Tripathi, Rajesh Ahirwar
Summary: Specific miRNAs have been identified as early warning biomarkers for health effects associated with exposure to PAHs in exposed populations, and they can serve as indicators of early health effects in response to chronic environmental exposure to PAHs.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Artur Jerzy Badyda, Wioletta Rogula-Kozlowska, Grzegorz Majewski, Karolina Bralewska, Kamila Widziewicz-Rzonca, Barbara Piekarska, Mariusz Rogulski, Jan Stefan Bihalowicz
Summary: This article presents an innovative approach to quantify PAHs and BTEX emissions from grilling and suggests a toxicity-based solution to understand the health effects related to BBQ emissions. The study highlights the negative health implications of traditional grilling methods and emphasizes the need for further attention.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Effrosyni Zafeiraki, Evangelos Moulas, Konstantinos M. Kasiotis, Evangelos Bakeas, Emmanouil Dassenakis
Summary: This study investigates the occurrence, distribution, sources, and ecotoxicological risk of polycyclic aromatic hydrocarbons (PAHs) in sediment samples collected from three areas along the Hellenic coastline. The results reveal that Piraeus harbor is the most contaminated area, followed by Saronikos Gulf and Heraklion. Most sampling sites show evidence of combustion as the source, with petroleum contamination also indicated in Piraeus harbor. Risk assessment indicates low or no adverse health effects for exposed biota in Saronikos Gulf and Heraklion, while BaP is identified as the main contributor to carcinogenic and mutagenic risk in Piraeus harbor.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Jie Li, Hongmei Xu, Dan Song, Zexuan Wang, Bintao Zhang, Rong Feng, Yunxuan Gu, Zhao Jiang, Xu Ji, Shuyu Liu, Steven Sai Hang Ho, Linli Qu, Fangyun Sun
Summary: Incense burning is a significant source of indoor air pollution in many Asian countries, especially in China. The study found that incense burning emits toxic compounds that pose a certain level of health risk. The research suggests that advanced types of incense should be preferred over traditional ones to reduce toxic emissions. The establishment of stricter regulations on incense production and emission is necessary.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yuan Zeng, Hui-Min Ma, Qian-Yu Zhang, Lin Tao, Tao Wang, Cong Wan, She-Jun Chen, Bi-Xian Mai
Summary: This study investigated the spatial-temporal variations of polycyclic aromatic compounds (PACs) in fine particulate matter (PM2.5) and their toxicity. The results found that high molecular weight polycyclic aromatic hydrocarbons (MW302 PAHs) played a significant role in reactive oxygen species (ROS) generation, and industrial sources were identified as important contributors to PM2.5 toxicity in the studied city.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)