Article
Environmental Sciences
Marzieh Mokarram, Hamid Reza Pourghasemi, Kuan Huang, Huichun Zhang
Summary: This study focuses on the water quality of the Kor River in southwest Iran, finding that industrial areas are more polluted than upstream areas, primarily influenced by parameters such as BOD, COD, NO3-, and coliforms. Linear regression results indicate that BOD is the best parameter for predicting coliforms, while Cr, PO43-, Hg, and Zn levels are best for predicting Water Quality Index values.
ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Mohammad Nishat Akhtar, Mohd Talha Anees, Emaad Ansari, Jazmina Binti Ja'afar, Mohammed Danish, Elmi Abu Bakar
Summary: This study assessed heavy metal pollution in river water during the COVID-19 pandemic and post-pandemic period. The results showed variable concentrations of heavy metals at different depths, possibly due to sinking tendencies or anthropogenic sources. However, all concentrations were within permissible limits, which may be attributed to reduced anthropogenic activities during the pandemic.
Article
Environmental Sciences
Jianwu Chen, Hui Zhang, Junzeng Xue, Lin Yuan, Wei Yao, Huixian Wu
Summary: The heavy metal pollution levels in the surface waters and sediments of Shanghai port were analyzed, showing high pollution levels in the southern port area and low pollution levels in the northern port area. The major pollutants in the southern port included Cd, Pb, Cr and Cu.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Jianwu Chen, Hui Zhang, Junzeng Xue, Lin Yuan, Wei Yao, Huixian Wu
Summary: The study found that the southern Shanghai port was heavily polluted by heavy metals, primarily Cd, Pb, Cr, and Cu; while Yangshan Port water was highly polluted, with other areas having lower pollution levels. Cd, Hg, and Zn pollution in sediments was severe, with most sampling sites posing moderate ecological risks.
MARINE POLLUTION BULLETIN
(2022)
Article
Multidisciplinary Sciences
Chaka Mohajane, Munyaradzi Manjoro
Summary: This study investigated sediment-associated heavy metal contamination and ecological risk along the Molopo River in Mahikeng, South Africa. Most heavy metal concentrations were below average shale, but some heavy metals were anthropogenically enriched at affected sites.
Article
Environmental Studies
Laima Cesoniene, Daiva Sileikiene, Midona Dapkiene
Summary: The study on 24 rivers in Lithuania revealed a significant impact of transit and agricultural pollution on the ecological status of rivers, with agricultural activities having the most pronounced negative influence on river ecosystems.
Article
Environmental Sciences
Bardha Korca, Skender Demaku
Summary: This study evaluated the quantities of heavy metals in the water, sediment, and soil of the Drini i Bardhe river, finding significant changes in heavy metal concentrations. The study suggests mild contamination in the river, posing potential risks to humans.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2022)
Article
Environmental Sciences
Linjie Xie, Peiyue Li, Dawei Mu
Summary: The study investigated the pollution level, spatial distribution characteristics, and origins of trace metals in the topsoil of the upstream area of the Guanzhong Basin. The most contaminated elements were Cr, Cu, Cd, and Pb, and the average levels of all trace metal elements exceeded their local background values. The primary sources of contamination were agriculture, industry, mining, metal smelting, and traffic emissions. This study provides reliable references for determining the sources of trace metals in the region.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Huixian Li, Yue Li, Guanghui Guo, Yang Li, Ruiqing Zhang, Chenglian Feng, Yahui Zhang
Summary: Due to the lack of suitable toxicity reference values and regional environmental characteristics, the ecological risk of metals in water bodies cannot be accurately assessed. This study derived site-specific water quality criteria (WQCs) for heavy metals in the Fen River by considering native aquatic organisms' toxicity data and regional water quality factors. The results provide valuable information for heavy metal pollution control and water quality management in the Fen River.
Article
Environmental Sciences
Naveen Radhakrishnan, Sonam Taneja, Saurav Ambastha, Harsh Pipil, Anil Kumar Haritash
Summary: Sediment quality assessment is important for evaluating the quality of rivers and this study focuses on assessing heavy metal concentration in size-fractionated sediments of River Ganga and identifying sources of contamination. The results show that the sediments are contaminated and enriched with toxic metals, with Chinyalisaur, Devaprayag, and Rishikesh being classified as pollution hotspots. Natural sources contribute to aluminum and iron, while anthropogenic sources contribute to chromium, zinc, lead, nickel, copper, and cadmium. Immediate interventions are needed to control further contamination by restricting wastewater discharge into River Ganga.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Environmental
Huanling Xie, Xin Yang, Junqiang Xu, Dengjie Zhong
Summary: Since the construction of the Three Gorges Project, the hydrological situation along the Yangtze River and its tributaries has undergone significant changes. This study analyzed the levels, temporal and spatial changes, and potential ecological risk trends of heavy metal pollutants in surface sediments from 2015 to 2020. The results showed variations in the content of copper, lead, manganese, arsenic, and mercury in sediments along the Yangtze River and its tributaries. The study also determined the heavy metal content in the muscle tissue of seven economic fish species and identified the main pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Yizhen Li, Jilili Abuduwaili, Long Ma, Wen Liu, Tao Zeng
Summary: By analyzing soil samples collected from four oases in the source region of the Tarim River, this study examined the concentration, pollution status, and source-specific risks of potential toxic elements (PTEs). The results revealed that Cd was the most prominent PTE in the oasis agricultural soil, with Hotan Oasis showing the highest contamination levels. The research findings provide important decision-making support for the protection and management of agricultural soil in this region.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Amira K. Hajri, Noureddine Hamdi, Amnah A. Alharbi, Sahr A. Alsherari, Doha A. Albalawi, Eman Kelabi, Tahar Ghnaya
Summary: Halophytes, especially Sesuvium portulacastrum, have been shown to efficiently accumulate and extract Cd2+ and Zn2+ from saline contaminated water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Water Resources
Hala E. Ghannam
Summary: The study found that levels of Fe, Pb, and Mn in the water of the Nile River in the Cairo region exceeded the allowed limits, while Cu and Zn levels were within limits. In fish muscle, Fe and Cu levels were within permissible limits, but Mn, Zn, and Pb exceeded the limits. The study also highlighted the importance of monitoring heavy metal concentrations in aquatic ecosystems and the potential health risks posed by certain metals like Pb to habitual fish eaters.
APPLIED WATER SCIENCE
(2021)
Article
Environmental Sciences
Ayesha Siddiqua, Yumna Sadef, Sheikh Ahmad, Mujahid Farid, Shafaqat Ali
Summary: The study revealed that cities and towns in semi-arid and arid environments are heavily impacted by multi-dimensional industrial activities, leading to significant environmental pollution in aquatic areas. The heavy metal concentrations, particularly arsenic and chromium, in surface water samples exceeded the permissible limits set by the World Health Organization and National Environmental Quality Standards, indicating poor water quality unsuitable for drinking.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2021)
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)