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
Environmental Sciences
Wenjing Shi, Hui Gong, Weiqi Zhou, Xuejun Tan, Chen Zhang, Xiaohu Dai
Summary: The objective of this study was to compare the distribution and ecological risk of PAHs in the sewage collection and treatment system of four cities in the middle and lower reaches of the Yangtze River. The results showed that the mean concentration of 16 sigma PAHs was higher in sewer sediments than in sewage sludge. The major sources of PAHs in sewage sludge were petroleum sources, coal tar, and coking activities, while PAHs in sewer sediments primarily came from wood combustion, automobile emissions, and diesel engine emissions. Both sewage sludge and sewer sediments had medium ecological risk based on the assessment of sigma PAHs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Nana Shang, Chuan Wang, Jijie Kong, Heyu Yu, Jianhong Li, Weiyue Hao, Tao Huang, Hao Yang, Huan He, Changchun Huang
Summary: This study investigates the concentration and sources of dissolved polycyclic aromatic hydrocarbons (PAHs-d) in the mainstream of the Yangtze River during dry and wet seasons. The concentration of PAHs-d is significantly higher in the wet season, and high pollution sites are mainly located in the downstream urban agglomeration. 2-3 rings are identified as the dominant composition of PAHs-d. Coal and coke combustion are determined as the main sources.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Lixia Niu, Xiangxin Luo, Huayang Cai, Feng Liu, Tao Zhang, Qingshu Yang
Summary: This study revealed relatively high concentrations of PAHs in sediments, with high molecular weight PAHs more readily redissolving into water, while low molecular weight PAHs were largely unsaturated. Seasonal differences were significant and mainly influenced by sediment properties, marine currents, and water temperature.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Chaobin Ren, Qianqian Zhang, Huiwei Wang, Yan Wang
Summary: PAH contamination in the groundwater of the Hutuo River Basin in Hebei Province, China, is mainly attributed to biomass combustion, with wood, coal, and gasoline sources contributing the most, followed by oil and diesel sources, and natural gas combustion. The concentration of PAHs in groundwater is influenced by land use, with varying pollution sources contributing differently in different areas. Results of this study provide valuable insights for the prevention and control of PAH contamination in groundwater in the region.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Lu Yang, Lulu Zhang, Lijiang Chen, Chong Han, Tomoko Akutagawa, Osamu Endo, Masahito Yamauchi, Andrey Neroda, Akira Toriba, Ning Tang
Summary: The study found significant differences in the concentrations of PAHs and NPAHs between warm and cold seasons in East Asian cities. Traffic emissions have a major impact on air quality, with coal combustion being more pronounced in the cold season. PAHs and NPAHs from the Asian continent can influence Japanese cities, demonstrating the positive effects of air pollution control policies in China.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Linjie Zhang, Lilan Zhang, Yue Shi, Zhihui Yang, Qijun Gong, Dong Sun
Summary: This study developed a method to quantify the variability of oceanic PAHs based on wind frequency and wind-speed-weighted wind frequency. The validity of this method was tested using in-situ survey data and publicly available data from other monsoonal open oceans. The results showed that wind frequency and wind-speed-weighted wind frequency could better explain the variation of dissolved and particulate PAHs in the surface ocean, respectively. This study suggests that the influence of seasonal atmospheric transport is important in describing and interpreting the distribution patterns of PAHs in monsoon-influenced low and mid-latitude open oceans, and provides a reference method for understanding the global-scale distribution patterns of PAHs in the ocean.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Jiaxun Guo, Yu Xie, Aomei Guan, Weixiao Qi, Xiaofeng Cao, Jianfeng Peng, Huijuan Liu, Xinghua Wu, Chong Li, Dianchang Wang, Jiuhui Qu
Summary: Dam construction has a significant impact on pollutant distribution in sediments, specifically in the Yangtze River. The construction alters the spatial trajectories of inorganic and organic pollutants, resulting in higher accumulation of pollutants upstream of the dam and lower levels downstream. These findings are important for assessing the environmental impact of dam-induced river fragmentation and developing effective pollutant management strategies.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Ioannis Sadiktsis, Marcos de Oliveira Galvao, Musatak Mustafa, Michael Toublanc, Burcu Unlu Endirlik, Sanna Silvergren, Christer Johansson, Kristian Dreij
Summary: Air pollution is a complex mixture of gases and particulate matter, which varies spatially and temporally. A yearlong monitoring campaign in the Stockholm area revealed seasonal differences in air pollutant levels and toxicity. Vehicle exhaust and biomass burning emissions were identified as the main sources of particulate pollution.
Article
Environmental Sciences
Zhangsen Dong, Zhe Dong, Ruiqin Zhang, Xiao Li
Summary: Field studies were conducted in four polluted cities in China to explore the seasonal characterization, sources, and source-specific risks of 16 PAHs. The results showed similar seasonal variations in all four sites, with higher values in winter and lower values in summer. Five main sources of PAHs were identified, including coal combustion, vehicle emissions, evaporation, coke oven emissions, and biomass burning. The risks associated with these sources were found to exceed the USEPA guideline value in all four sites.
ATMOSPHERIC POLLUTION 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
Environmental Sciences
Yan Li, Ning Li, Xiangling Zhang, Ke Liu, Zhenyi Jia, Genmei Wang
Summary: PAHs, particularly in lake sediments, pose a significant threat to human health and ecological security due to their persistence and high toxicity. The improved PMF-PC model showed high accuracy in numerical simulation and spatial distribution consistency of PAHs compared to existing receptor models. The contributions of different sources to PAHs in Taihu Lake sediments were determined, with fossil fuel sources being more concentrated near the shore.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Tao Ma, Jijie Kong, Weidi Li, Xinying Cheng, Yueqing Zhang, Deyang Kong, Shaogui Yang, Shiyin Li, Limin Zhang, Huan He
Summary: This study conducted a systematic monitoring of NPAHs and PAHs in agricultural soils of the Taige Canal basin. The results showed that four-ring NPAHs and PAHs were predominant and mainly originated from vehicle exhaust emissions, coal combustion, and biomass combustion. The health risk posed by PAHs in soils was lower than that of NPAHs in the Taige Canal basin.
Article
Engineering, Environmental
Yuxin Zhang, Haiyang Chen, Chang Liu, Ruihui Chen, Yeyao Wang, Yanguo Teng
Summary: A new integrated methodology framework was proposed for source apportionment and source-oriented risk evaluation of PAHs in soils of a typical cold region in Northeastern China. Two advanced receptor models, PMF and MCR-WALS, were employed to identify the main sources of soil PAHs and assess the health risks posed by them. The results showed that coal combustion and gasoline engine were the main contributors to soil PAHs, with negligible health risks for both adults and children. Source-oriented risk assessment indicated that coal combustion had the highest contribution to the total risk of PAHs in soils.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Jincai Zhu, Yuxin Ma, Lihong Zhang, Zhen Zhao
Summary: An intensive sampling program was conducted in Shanghai to study the occurrence, sources, behavior, and fate of atmospheric PAHs. The study found lower concentrations of PAHs compared to previous measurements in northern coastal China and urban/suburban Shanghai. Seasonal variations were observed in the gas-particle partitioning of PAHs, with easier adsorption on particles during colder months. The study also identified the impact of terrestrial and marine air mass interactions regulated by the East Asian monsoon.
ATMOSPHERIC POLLUTION RESEARCH
(2023)
Article
Physics, Multidisciplinary
Ying Dai, Lei Chen, Pu Zhang, Yuechen Xiao, Zhenyao Shen
Article
Environmental Sciences
L. Chen, P. Zhang, G. P. Lv, Z. Y. Shen
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2019)
Article
Engineering, Environmental
Yueqiu Zhang, Shiliang Liu, Xiaoyun Hou, Fangyan Cheng, Zhenyao Shen
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2019)
Article
Environmental Sciences
Cong Men, Ruimin Liu, Qingrui Wang, Lijia Guo, Yuexi Miao, Zhenyao Shen
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Xuanjing Chen, Maryna Strokal, Carolien Kroeze, Lin Ma, Zhenyao Shen, Jiechen Wu, Xinping Chen, Xiaojun Shi
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Xiaoshu Hou, Lei Chen, Jiali Qiu, Yali Zhang, Zhenyao Shen
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2019)
Article
Environmental Sciences
Yongwei Gong, Ye Chen, Lei Yu, Junqi Li, Xingyao Pan, Zhenyao Shen, Xiang Xu, Qianying Qiu
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2019)
Article
Environmental Sciences
Xiaoyu Guo, Chenghong Feng, Erxue Gu, Chenhao Tian, Zhenyao Shen
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Pu Zhang, Lei Chen, Xiaoshu Hou, Guoyuan Wei, Xiaoyue Zhang, Zhenyao Shen
Article
Chemistry, Multidisciplinary
Zhen-Long Tu, Zhi-Ping Yan, Xiao Liang, Lei Chen, Zheng-Guang Wu, Yi Wang, You-Xuan Zheng, Jing-Lin Zuo, Yi Pan
Review
Environmental Sciences
Mingjing Wang, Lei Chen, Lei Wu, Liang Zhang, Hui Xie, Zhenyao Shen
Summary: This paper reviews the progress in the development of non-point source (NPS) models and proposes a systematic description of model framework, identifies common challenges, and summarizes future directions. The challenges include limitations in understanding specific NPS pollution processes, model expansion to different scales, data scarcity, prediction uncertainty, and insufficient accuracy for decision-making. The future directions for NPS model development include establishing a source-flow-sink framework, standardizing model input and parameter, and providing reliable decision support.
Article
Chemistry, Multidisciplinary
Lei Chen, Kuangshi Sun, Donghao Hu, Xianlong Su, Linna Guo, Jiamiao Yin, Yuetian Pei, Yiwei Fan, Qian Liu, Ming Xu, Wei Feng, Fuyou Li
Summary: Photochemical afterglow systems have attracted significant attention for their adjustable photophysical properties and potential applications. However, conventional photochemical afterglow lacks repeatability due to the consumption of energy cache units. In this study, we propose a novel strategy to achieve repeatable photochemical afterglow through the reversible storage of O-1(2). This strategy enables the generation of near-infrared afterglow with a lifetime over 10 s, and its initial intensity remains stable over 50 excitation cycles. Mechanism study confirms the repeatable photochemical afterglow is realized through singlet oxygen-sensitized fluorescence emission. The generality of this strategy is demonstrated, allowing for tunable afterglow lifetimes and colors through rational design. Furthermore, the repeatable photochemical afterglow is applied for attacker-misleading information encryption, providing repeatable readout.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Alma R. Perez, Evan C. Bornowski, Lei Chen, John P. Wolfe
Summary: The synthesis of indanes containing substituted cyanomethyl groups at C2 has been achieved through Pd-catalyzed coupling reactions. Alkenyl triflates were used to generate partially saturated analogues via similar transformations. The use of a preformed BrettPhosPd(allyl)(Cl) complex as a precatalyst was crucial for the success of these reactions.
Article
Environmental Sciences
Chaoxu Luan, Renzhi Liu, Jing Sun, Shangren Su, Zhenyao Shen
Summary: An improved land-use simulation model with dynamically nested ecological spatial constraints was developed in this study, considering multilevel ecological spatial constraints and factors such as urban development, agricultural production, and ecological function. The results showed that considering ecological protection red line, capital farmland, and urban development land-use suitability led to a more compact built-up land distribution in Changchun. This model provides more accurate support for the efficient use of land resources and future territorial spatial planning.
Article
Environmental Sciences
Jingyu Wang, Xuehui Zhou, Shuai Wang, Lei Chen, Zhenyao Shen
Summary: The implementation of grey and green infrastructure retrofitting in urban areas can effectively reduce flooding and nonpoint source pollution. Through simulations and monetization methods, this study evaluated the comprehensive benefits of such renovation. The results showed significant reductions in overflow nodes, overflow volume, and nonpoint source pollution levels. The annual benefits of grey and green infrastructure renovation were substantial, with the benefits of green facilities surpassing those of grey facilities.
Article
Environmental Sciences
Atefeh Zendehboudi, Azam Mohammadi, Sina Dobaradaran, Gabriel E. De-la-Torre, Bahman Ramavandi, Seyed Enayat Hashemi, Reza Saeedi, Emran Moradpour Tayebi, Ahmad Vafaee, Amirhossein Darabi
Summary: This study investigated the characteristics and ecological risks of microplastics (MPs) in ballast water for the first time, and found high levels of MP pollution. These findings contribute to our understanding of the sources and risks of microplastics in marine ecosystems.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rose Boahemaa Pinto, Linda Bogerd, Martine van der Ploeg, Kwame Duah, Remko Uijlenhoet, Tim H. M. van Emmerik
Summary: Catchment-scale plastic pollution assessments provide insights into the sources, sinks, and pathways of plastic pollution. We propose an approach to quantify macroplastic transport and density in the Odaw catchment, Ghana, and find that the urban riverine zone has the highest transport, while the urban tidal zone has the highest riverbank and land macroplastic density.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Aliya Baidourela, Qian Sun, Gongxin Yang, Umut Halik, Zhongkai Dong, Kaixu Cai, Guili Sun, Wenya Zhang, Sisi Cheng
Summary: The study focused on heavy metal pollution in the green vegetation of a suburban industrial area in Tuokexun County, Xinjiang, China. The results showed that the overall level of heavy metal pollution in the soil was minor, with mercury (Hg) being the most severe contamination, likely caused by human activities. The composition of heavy metal elements in trees was more stable compared to grass and shrubs, with varying concentrations across different vegetation. Shrubbery was found to be the most effective in heavy metal restoration, and there were disparities in heavy metal enrichment among different vegetation types.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
James H. Bridson, Hayden Masterton, Beatrix Theobald, Regis Risani, Fraser Doake, Jessica A. Wallbank, Stefan D. M. Maday, Gavin Lear, Robert Abbel, Dawn A. Smith, Joanne M. Kingsbury, Olga Pantos, Grant L. Northcott, Sally Gaw
Summary: Plastic pollution has significant environmental impacts, largely due to chemical additives. However, the behavior of plastic additives in marine environments is not well understood. A marine deployment experiment was conducted to investigate the effects of weathering on the extractables profile of four types of plastics in New Zealand over a period of nine months. The concentration of additives in polyethylene and oxo-degradable polyethylene was strongly influenced by artificial weathering, while polyamide 6 and polyethylene terephthalate showed minimal change. These findings emphasize the importance of considering leaching and weathering effects on plastic composition when assessing the potential impact and risk of plastic pollution in receiving environments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Alan G. Scarlett, Francis D. Spilsbury, Steven J. Rowland, Marthe Monique Gagnon, Kliti Grice
Summary: This study used diamondoid hydrocarbon distributions to identify the sources of environmental oil contamination. A suite of 20 diamondoids was found to accumulate in fish adipose tissue. The scatter plots of indices between fish and exposure oils showed a close to ideal 1:1 relationship, which can be used to determine the origin of the oil.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Shan Jiang, Mengmeng Wan, Kun Lin, Yanshan Chen, Rui Wang, Liju Tan, Jiangtao Wang
Summary: In this study, the concentration, composition, distribution, and sources of PCBs in surface seawater of the Bohai Bay were analyzed. The results showed that PCBs in the Bohai Bay had high concentrations and were primarily derived from land-based sources such as port activities and river inputs. The PCBs in the Bohai Bay may come from commercial PCBs and their incineration products, municipal landfills, wood and coal combustion, and industrial activities, etc.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Icaro S. A. Porto, Saulo V. A. Dantas, Caio S. A. Felix, Francisco A. S. Cunha, Jailson B. de Andrade, Sergio L. C. Ferreira
Summary: This study evaluated the risks of mercury levels in sardines consumed by low-income population in Salvador, Brazil. The results showed that the mercury content in the sampled sardines posed no risks to human health. This study is significant as most sardines in Salvador come from Todos os Santos Bay, which has a history of mercury contamination.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Jiahui Chen, Chengyu Yuan, Guanqun Zhai, Guangcheng Chen, Heng Zhu, Jun Liu, Yong Ye
Summary: This study investigated the combined influences of species selection and site elevation on greenhouse gas fluxes from restored mangrove soils. The results suggest that Avicennia marina should be selected for mangrove restoration to minimize carbon release and reduce the influence of greenhouse gas fluxes on the global greenhouse effect.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Emmanuel Onyeabor, Uju Obuka
Summary: The Gulf of Guinea region in Africa is a significant area for coastal countries, playing a vital role in their economic and environmental development. This study aims to reduce marine plastic pollution in the region by utilizing legal instruments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Yuanli Liu, Stephan Luttjohann, Alvise Vianello, Claudia Lorenz, Fan Liu, Jes Vollertsen
Summary: Large area attenuated total reflectance-Fourier transform infrared spectroscopy (LAATR-FTIR) is a novel technique for detecting small microplastics, with limited accuracy for large microplastics. However, it shows promise in homogeneous matrices. The spectra quality is comparable between transmission mode and LAATR mode.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Phuc T. D. Le, Andrew M. Fischer, Britta D. Hardesty, Heidi J. Auman, Chris Wilcox
Summary: This study explores the relationship between ocean currents and the accumulation of floating marine debris (FMD) and finds that higher concentrations of FMD are associated with frontal frequencies (FF). FMD is primarily trapped in accumulation zones between fronts and the coastline, which have high biodiversity value.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rosa Sawan, Perine Doyen, Florence Viudes, Rachid Amara, Celine Mahfouz
Summary: Few studies have examined the impact of urbanization and meteorological events on microplastics discharged into the sea through rivers. Surface water samples were collected from two Lebanese rivers, with differing degrees of urbanization, during dry and wet periods. The results showed that the most industrialized river had a significantly higher abundance of microplastics compared to the less-industrialized river. There was also a correlation between particle contamination and the season at each site, with microplastic concentrations highest on the first day of the wet season. These findings highlight the importance of considering meteorological events in accurately assessing plastic pollution influx into coastal waters.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Katherine R. Shaw, Jonathan L. Whitney, Eileen M. Nalley, Madeline C. Schmidbauer, Megan J. Donahue, Jesse Black, Raquel N. Corniuk, Kellie Teague, Rachel Sandquist, Catherine Pirkle, Rachel Dacks, Max Sudnovsky, Jennifer M. Lynch
Summary: This study examines the ingestion of plastic in reef fish in the Republic of the Marshall Islands. Plastic particles were found in the gastrointestinal tracts of multiple fish species. However, further analysis revealed that these particles were actually natural materials and posed no threat to human consumers.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Revati Hardikar, C. K. Haridevi, Shantaj Deshbhratar
Summary: This study investigated the variability in phytoplankton functional structure using a trait-based approach and explored the relationship between species traits and environmental factors, as well as their impact on ecosystem functioning. The results revealed that morphological traits, temperature, and ammonia played a decisive role in the seasonal succession of phytoplankton species. It was found that certain traits favored higher biomass production but might hinder energy transfer efficiency. The strong correlation between environmental variables and phytoplankton functional structure supports the practical implementation of a trait-based approach in studying phytoplankton community dynamics under different environmental conditions.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Engki A. Kisnarti, Nining Sari Ningsih, Mutiara R. Putri, Nani Hendiarti, Bernhard Mayer
Summary: This study examines the movement patterns of plastic marine debris in Indonesian waters, revealing that Indonesia contributes significantly to transboundary marine debris in the Pacific Ocean, Indian Ocean, and the South China Sea. Most of the debris remains in Indonesian waters and moves back and forth due to the influence of monsoon currents.
MARINE POLLUTION BULLETIN
(2024)