Article
Construction & Building Technology
Rokhsareh Azimi-Yancheshmeh, Mazaher Moeinaddini, Sadat Feiznia, Alireza Riyahi-Bakhtiari, Mozhgan Savabieasfahani, Eric D. van Hullebusch, Behnam Asgari Lajayer
Summary: The study monitored the sources, temporal and spatial distribution, and health risks of PAHs in PM2.5 in Karaj city, finding that atmospheric PAHs mainly come from diesel and gasoline engine emissions, posing serious health risks, especially in cold seasons.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Geosciences, Multidisciplinary
Mengxi Ren, Liugen Zheng, Jie Hu, Xing Chen, Yanhai Zhang, Xianglin Dong, Xiangping Wei, Hua Cheng
Summary: The pollution process of polycyclic aromatic hydrocarbons (PAHs) in mining areas, especially coal mining areas, has been accelerated due to coal chemical production and accumulation of gangue. This study analyzed the concentrations, composition, spatial distribution, and sources of PAHs in surface soil, and evaluated their potential carcinogenic risks. The results showed high PAH concentrations in contaminated areas, with coking, oil and biomass combustion, and vehicle emissions and coal combustion being the main sources. The cancer risk for both adults and children in contaminated areas was five times higher than that in uncontaminated areas.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Qiqi Li, Yuan Zeng, Yun Fan, Siqi Fu, Yufeng Guan, Yuxin Sun, Shejun Chen
Summary: This study investigated the spatial variations, compositional profiles, sources, and health risks of PM-bound PACs in two large-scale petrochemical bases in South China. The primary sources of PACs were found to be vehicle traffic exhaust, coking activities, and the aromatic industry. The health risks associated with PM-bound PACs were found to be low.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xiaoli Zhou, Rong Hu, Yanming Fang
Summary: Naturally growing mosses have been used as biomonitors of atmospheric heavy metal deposition in Yancheng, China. The study found that Cd pollution level was the highest in mosses, with contamination from metal processing and traffic emissions being the main sources of Pb contamination. Results suggest the need for effective measures to prevent and reduce atmospheric heavy metal deposition in Yancheng.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Rafiu Olasunkanmi Yusuf, Emmanuel Toluwalope Odediran, Jamiu Adetayo Adeniran, Olusola Adedayo Adesina
Summary: This study investigated the spatial and seasonal distribution, sources, and associated health risks of polycyclic aromatic hydrocarbons (PAHs) in road dust sampled from ten traffic intersections in a model African city. The study found that concentrations of PAHs in road dust fluctuated and varied significantly between seasons. The study also identified the major sources of PAHs and assessed the cancer risks for children and adults in the city.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
B. Basaran, M. Yilmaz Civan
Summary: This study investigated PBDEs and PAHs in indoor dust from homes in Kocaeli, Turkey, and identified their potential sources. The results showed that coal/biomass combustion was the main source of indoor PAHs, while commercial penta-BDE emissions were the main source of PBDEs. Mitigating these main sources could effectively improve indoor air quality.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Xiaoli Zhou, Liping Lu, Yanan Wang, Yanming Fang, Tongxing Sun
Summary: The concentration and contamination level of trace metals in mosses from Huai'an, China were measured. The pollution was found to be mainly from industrial activities, mining development, coal burning, and traffic emission.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xijun Wu, Ying Dong, Jian Zhao, Jing Liu, Yaning Zhang
Summary: This study investigated the spatial distribution, pollution source, and ecological risk of PAHs in the Kuye River, a typical river in a mining area of China. 16 priority PAHs were detected at 59 sampling sites. The results showed that PAHs concentrations were highest in coal mining, industrial, and densely populated areas. The main sources of PAHs were coking/petroleum sources, coal combustion, vehicle emission, and fuel-wood combustion. The study also assessed the ecological risk and found that benzo[a]anthracene posed a high ecological risk.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Yi-Shan Liu, Hui-Ru Li, Zhi-Lang Lao, Sheng-Tao Ma, Zi-Cong Liao, Ai-Min Song, Ming-Yang Liu, You-Sheng Liu, Guang-Guo Ying
Summary: In the past decade, there has been a rapid increase in the production and use of organophosphate esters (OPEs). OPEs have been found to escape from products and be present in various environments, causing concern due to their bioavailability and negative effects on biota and human health. This study investigated the distribution and behavior of 25 OPEs in water, sediment, and sediment core samples from the Lian River in South China. The results showed that the Lian River had high levels of OPEs, particularly in areas surrounded by e-waste recycling and plastic-related industries. Non-industrial and agriculture-related activities also contributed to OPE contamination. The phase distribution of OPEs was correlated with their hydrophobicity and solubility. The findings suggest that OPEs in water reflect real-time inputs, while those in sediment signify accumulative deposition.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Ning Wang, Na Wang, Dan Qi, Guodong Kang, Wei Wang, Cheng Zhang, Zhenhua Zhang, Yan Zhang, Houhu Zhang, Shenghu Zhang, Jingjing Xu
Summary: This study determined the spatiotemporal distributions of 39 antibiotics in 19 drinking water sources in the Jiangsu area and identified the main sources of antibiotics. The results showed that pharmaceutical wastewater and domestic wastewater were the main sources of antibiotics, and fluoroquinolone antibiotics posed the strongest risks. Norfloxacin, ciprofloxacin, and enrofloxacin posed moderate to high risks of resistance development and should be prioritized for risk management.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Tarek Saba
Summary: Some challenges in allocating PAH-related remedy costs at contaminated sediment sites include lack of source samples, different PAH signatures from the same source, removal of historical PAH sources, mixing of urban sediment by boat traffic, and mixing and weathering of PAHs. This study demonstrates the use of positive matrix factorization (PMF) to separate PAH fingerprints into source classes, providing a method to track PAH upland sources and responsible parties. A large dataset of contaminated urban sediment samples was inputted into PMF, and petrogenic, pyrogenic, and runoff/weathered PAH end-member fingerprints were identified. Different mixing percentages of the end-member sources were able to replicate the measured PAH fingerprints.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Manisha Mishra, Pin-Hsin Chen, Wilfredo Bisquera, Guan-Yu Lin, Thi-Cuc Le, Racha Dejchanchaiwong, Perapong Tekasakul, Ciao -Wei Jhang, Ci-Jhen Wu, Chuen-Jinn Tsai
Summary: This study used machine learning based sensitivity analysis coupled with source-apportionment of volatile organic carbons (VOCs) to investigate O-3 pollution in Yunlin County, Taiwan. The study assessed the contribution of different VOCs sources and identified the most sensitive factors governing O-3 pollution. The results highlighted the need to regulate VOCs associated with industrial combustion more efficiently to mitigate O-3 pollution in the county.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Reza Sharifi, Mehrzad Keshavarzifard, Moslem Sharifinia, Mohamad Pauzi Zakaria, Meisam Rastegari Mehr, Sajjad Abbasi, Chee Kong Yap, Mohamad Reza Yousefi, Najat Masood, Sami Muhsen Magam, Sadeq Abdullah Abdo Alkhadher, Moslem Daliri
Summary: The pollution characteristics and ecological risks of PAHs in sediments from Brunei Bay were investigated. The concentrations of n-ary sumation 16 PAHs indicated a moderate to high level of pollution. The analysis suggested that the PAHs were mainly sourced from biomass and fossil fuel combustion. Most PAH compounds showed no significant ecotoxicological risks, but BaP, DBA, and BaA were identified as the most carcinogenic. The health risk assessment revealed a low to moderate risk of PAHs for both adults and children.
MARINE POLLUTION BULLETIN
(2022)
Article
Engineering, Environmental
Laura Hyesung Yang, David H. Hagan, Jean C. Rivera-Rios, Makoto M. Kelp, Eben S. Cross, Yuyang Peng, Jennifer Kaiser, Leah R. Williams, Philip L. Croteau, John T. Jayne, Nga Lee Ng
Summary: Advances in low-cost sensors (LCS) have provided opportunities to characterize air quality in finer spatial and temporal resolutions. In this study, LCS were deployed in Atlanta, GA, alongside research-grade instruments to investigate air pollution sources using non-negative matrix factorization (NMF). Results show that both normalized and non-normalized LCS datasets can resolve primary organic aerosol (POA) factors, while normalization can provide factors with more diverse compositions and resolve secondary organic aerosol (SOA) as well.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Rui Yu, Zhengwu Cui, Nana Luo, Yong Yu
Summary: The research revealed the contamination of polycyclic aromatic hydrocarbons (PAHs) in car dust, mainly from coal combustion and vehicle exhaust. Exposure to PAHs from car dust puts both children and adults at high carcinogenic risk.
Article
Environmental Sciences
Qiusheng He, Qi Song, Yulong Yan, Zhichun Wang, Lili Guo, Xinming Wang
Article
Environmental Sciences
Zeqian Liu, Yang Cui, Qiusheng He, Lili Guo, Xueying Gao, Yanli Feng, Yuhang Wang, Xinming Wang
Summary: The study found that formaldehyde, acetaldehyde, and acetone are the major carbonyls in the atmosphere in Taiyuan, with the highest concentrations in summer and autumn. Formaldehyde and acetone levels increase during the daytime and decrease at night, while acetaldehyde shows no significant diurnal variations. The highest concentrations of carbonyls from south and southwest winds in summer suggest that the coke industries in the southern Taiyuan Basin should be controlled to alleviate ozone pollution.
Article
Environmental Sciences
Shuang Wang, Yucheng Yan, Xueying Gao, Hefeng Zhang, Yang Cui, Qiusheng He, Yuhang Wang, Xinming Wang
Summary: The continued development of the automotive industry has led to a rapid increase in waste rubber tires, causing serious black pollution that is often ignored. This study investigated the emission characteristics, health risks, and environmental effects of volatile organic compounds (VOCs) from a typical recycled rubber plant. The results showed that m/p-xylene could be considered as a marker for VOCs emission and that the emission characteristics varied according to raw materials, production conditions, and process equipment. The assessment of health risks identified both non-carcinogenic and carcinogenic risks in different processes, with m/p-xylene being the most significant species that should be prioritized for control.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Yuan Li, Wujuan Mi, Yuheng Zhang, Li Ji, Qiusheng He, Yuanzhu Wang, Yonghong Bi
Summary: Humans have had a significant impact on carbon dioxide emissions in China from 2000 to 2017. The increase in human pressures coincided with a rise in CO2 emissions, with northern China playing a key role in this correlation. However, after 2011, the growth rate of CO2 emissions slowed down, possibly due to effective measures for high-quality development.
Article
Green & Sustainable Science & Technology
Wujuan Mi, Minghua Zhang, Yuan Li, Xiaoxuan Jing, Wei Pan, Xin Xing, Chen Xiao, Qiusheng He, Yonghong Bi
Summary: This study investigated the spatio-temporal distribution characteristics of groundwater nitrate-nitrogen (GNN) in Taiyuan, China, and assessed its potential risks to human health. The results showed a decline in GNN concentration over time, with higher levels in urban areas compared to rural areas. Forest areas had lower GNN levels. According to the hazard quotient, GNN had the greatest impact on infants, followed by children and adults.
