Article
Environmental Sciences
Xiuqin Xie, Ke Yuan, Yongyi Yao, Jingyu Sun, Li Lin, Yongshun Huang, Ge Lin, Tiangang Luan, Baowei Chen
Summary: Bacterial degradation is an important method for cleaning up polycyclic aromatic hydrocarbons (PAHs) in aquatic environments. In the Pearl River Estuary water, Proteobacteria was identified as the most abundant phylum of PAH-degrading bacteria, with PAH-degrading bacteria and PAHDGs enriched on suspended particulate matters.
Article
Environmental Sciences
Ya-Su Wang, Feng-Xia Wu, Yang-Guang Gu, Hong-Hui Huang, Xiu-Yu Gong, Xiu-Li Liao
Summary: Analysis of PAHs in intertidal sediments of the Pearl River Estuary in China revealed that petroleum combustion and biomass/coal combustion are the main sources contributing to 52.78% and 40.53% of PAHs, respectively. Adverse biological effects have increased by 8% due to PAH contamination in intertidal sediments.
MARINE POLLUTION BULLETIN
(2021)
Article
Ecology
Peng Wu, You-Shao Wang
Summary: The study found serious pollution of polycyclic aromatic hydrocarbons in sediments of the Pearl River estuary, China. However, the fluorene-degrading bacterium strain A2-3 showed high efficiency in degrading fluorene, especially when the pH value ranged from 5.5 to 8.5. Therefore, strain A2-3 may have potential applications in bioremediation.
Article
Environmental Sciences
Haiyan Li, Zini Lai, Yanyi Zeng, Yuan Gao, Wanling Yang, Yongzhan Mai, Chao Wang
Summary: This study investigated the pollution characteristics, sources, and ecological risks of PAHs in surface sediments from the river networks and outlets of the Pearl River Delta. The results showed that PAHs in sediments were mainly derived from coke tar and liquid fossil fuel combustion, coal/wood combustion, and petroleum contamination. Ecological risks of PAHs were found to be at moderate levels in the Pearl River Delta, indicating the need for regular monitoring.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Michaela Belhacova-Minarikova, Ian Allan, Branislav Vrana
Summary: The contamination of aquatic ecosystems by hydrophobic organic contaminants (HOCs) is often evaluated based on their concentrations in riverbed sediment and suspended particulate matter (SPM). However, the total HOC concentration (C-TOT) in sediment or SPM has limited value in assessing the exposure of benthic or pelagic organisms. The accessible HOC concentration (C-AS) provides a useful parameter for quantifying the overall pool of HOC available for partitioning to the water phase or biota. This study compared C-TOT and C-AS in SPM and sediment samples collected from the Danube River and found that they provide complementary but not interchangeable information on HOC contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Lulu Sun, Chaoba Lin, Zengxing Zhou, Fuying Zhang, Ming Xu, Peiyuan Jiao, Xuezhu Zhu, Xinping Yang, Hao Zhu
Summary: The main organic pollutants in the industrial soils of the Pearl River Delta region of China were polycyclic aromatic hydrocarbons (PAHs) and phthalate esters (PAEs). These organic pollutants affected the biomass and enzyme activities of soil microorganisms, as well as decreased microbial species diversity and abundance. Urease activity, actinomycetes biomass, and fungi biomass were identified as suitable biological indicators for evaluating the stress of organic pollutants.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Environmental
Mengjie Zhao, Bing Tang, Liying Bin, Ping Li, Shaosong Huang, Fenglian Fu
Summary: This investigation studied the presence, distribution, and removal of polycyclic aromatic hydrocarbons (PAHs) in the textile wastewater treatment process in the Pearl River Delta Region, South China. The results showed that all 16 PAHs could be found in dissolved and adsorbed states, except for acenaphthylene in suspended solids. The different molecular weights of PAHs affected their distribution and removal. Higher molecular weight PAHs were easier to remove in the sedimentation step. These findings are important for assessing environmental risks.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yuting Chen, Bei Lai, Yixian Wei, Qiaowei Ma, Hairong Liang, Hui Yang, Ruifang Ye, Minjuan Zeng, Huanhuan Wang, Yao Wu, Xiaoshan Liu, Lianxian Guo, Huanwen Tang
Summary: This study focuses on the particulates-bound PAHs in the Songshan Lake Science and Technology Industrial Park in Dongguan, China, and their impact on cancer risk and cellular toxicity. The research reveals significant differences in PAHs concentrations between summer and winter, with higher cancer risks found in the adolescent group. Results from experiments conducted on human bronchial epithelial cells indicate that PAHs can increase the formation of ROS, induce DNA damage, and affect protein levels. Stable carbon isotope ratio analysis confirms that petroleum and fossil fuel combustion are major sources of PAHs. These findings highlight the importance of particulates-bound PAHs and suggest the need to develop alternative energy sources to reduce fossil fuel combustion.
ENVIRONMENTAL RESEARCH
(2022)
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
Paolo Montuori, Elvira De Rosa, Fabiana Di Duca, Bruna De Simone, Stefano Scippa, Immacolata Russo, Pasquale Sarnacchiaro, Maria Triassi
Summary: The Sele River in southern Italy is an important river in the Campania Region. The distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in the river were studied, and it was found that industrial wastewater and vehicle emissions contribute to the PAH concentrations in the water and sediment. This pollution poses a risk to the ecosystem and human health.
Review
Engineering, Environmental
Jingqian Xie, Ling Tao, Qiang Wu, Shiming Lei, Tian Lin
Summary: Halogenated polycyclic aromatic hydrocarbons (HPAHs) are highly lipophilic and degradation-resistant compounds, which have been widely detected in air, water, sediment, and biota, posing adverse effects on animals and humans. Despite the recognition of their importance, there is still a lack of research, particularly in water and sediment matrices, highlighting the need for further investigation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Jingqian Xie, Ling Tao, Qiang Wu, Shuyi Tu, Bilin Liu, Tian Lin, Lili Yang, Cui Li, Guorui Liu
Summary: This study found for the first time the presence of nine target chlorinated and brominated PAH congeners in squid. The transfer of these carcinogenic halogenated polycyclic aromatic hydrocarbons (HPAHs) in squid is related to global trade. The lipid content of squid is the most significant factor influencing HPAH bioaccumulation, while differences in squid growth and local ocean contamination influenced by geographical distribution also affect HPAH bioaccumulation. International squid trading can affect the redistribution and risk transfer of HPAHs in squid as food. The cancer risks from squid consumption in China and Mexico were increased by 50% and 30%, respectively, due to international squid trading.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Nikolay P. Sudakov, Igor V. Klimenkov, Yekaterina D. Bedoshvili, Kirill Yu Arsent'ev, Alexander G. Gorshkov, Oksana N. Izosimova, Vera M. Yakhnenko, Alexandr B. Kupchinskii, Sergei I. Didorenko, Yelena V. Likhoshway
Summary: The study on the short-term impact of furnace soot on gill cells of Baikal Sculpin revealed that soot induces degenerative changes in the gill structure, increases mucus production, affects mitochondrial activity, and increases reactive oxygen species production. This indicates stress on respiratory and osmotic regulation systems in fish, highlighting the potential risks of soot on aquatic ecosystems.
Article
Environmental Sciences
I. A. Nemirovskaya, A. V. Khramtsova
Summary: This paper analyzes the concentrations and composition of hydrocarbons in the Barents and Kara Seas. The study finds that the concentration of aliphatic hydrocarbons is lower in the Barents Sea and higher in the Kara Sea. Aliphatic hydrocarbons are mainly found in dissolved form in the Barents Sea, while in the Kara Sea they are primarily present in suspended form.
MARINE POLLUTION BULLETIN
(2023)
Article
Biotechnology & Applied Microbiology
Savannah J. Volkoff, Daniel L. Rodriguez, David R. Singleton, Alexander W. McCumber, Michael D. Aitken, Jill R. Stewart, Claudia K. Gunsch
Summary: This study investigated the bacterial community of the Elizabeth River using both culture-based and culture-independent methods, and identified potential candidates for bioremediation of PAH contaminants. The results showed the presence of PAH-degrading bacteria in the sediment, and a divergence in the microbial community between highly contaminated and less contaminated sites. The study highlights the importance of both culture-based and culture-independent methods in identifying promising bacterial candidates for precision bioremediation.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)