Article
Geochemistry & Geophysics
Elzbieta Skorbilowicz, Weronika Rogowska, Miroslaw Skorbilowicz, Piotr Ofman
Summary: This study determined the content and spatial distribution of various metals in sediment samples from the coastal zone of Elckie Lake in the Green Lungs of Poland. The concentration of metals was analyzed using atomic absorption spectrometry. The results indicated that the metals originated from natural sources such as the Earth's crust and wind-blown dust, as well as anthropogenic activities including transportation and coal burning. The study also found higher levels of heavy metals in sediments from urbanized areas compared to rural/forest and beach areas.
Article
Environmental Sciences
Hongchen Wu, Jingfu Wang, Jianyang Guo, Xinping Hu, Hongyun Bao, Jingan Chen
Summary: The historical atmospheric heavy metal pollution in southern China over the past 200 years was studied using analysis of a sediment core from Huguangyan Maar Lake. The study found that Zn, Cd, Sb, Tl, and Pb in the lake were closely related to human activities, while Cr and Ni were mainly from the weathering of surrounding basalt. The increase of atmospheric Pb in southern China occurred earlier than in other regions of China, mainly due to war and the use of leaded gasoline. After 2000, atmospheric Pb continued to rise due to continued industrial development.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Mostafa Redwan, Engy Elhaddad
Summary: This study explored the concentrations and origins of seven heavy metals in the sediments of Manzala Lake, and found that the heavy metals and organic matter were enriched during the winter season. Some heavy metals posed a threat to the aquatic environment of Manzala Lake. The pollution of the sediments with heavy metals was mainly due to the discharge from different drains and the industrial region.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Environmental Sciences
Baoying Wang, Jianyu Lin, Xiaogang Wu, Yinian Xue, Chao Han, Zhihong Zhang, Jinghua Ren, Qiushi Shen
Summary: The study characterized the high-density distribution patterns of nutrients and heavy metals in sediments from Lake Luoma, as well as their pollution status and ecological risks. The pollutants were found to mainly come from fertilizers, pesticides, and industrial wastewater, providing important reference for water pollution control in the basin.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Bochra Brik, Moez Shaiek, Lamia Trabelsi, Kamel Regaya, Nabiha Ben Mbarek, Bechir Bejaoui, Maria Virginia Alves Martins, Noureddine Zaaboub
Summary: This study assessed the sediment quality of Lake Ichkeul and its surrounding catchment areas. The results showed that the lake bottom is composed of muddy sediments with high contents of phyllosilicates, quartz, and calcite, while the mouth of the surrounding streams contained sandy sediments and high organic matter content. The analysis also revealed high levels of metals in the study area, possibly originating from municipal wastewater discharges and agricultural fields.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Remo Luis Roethlin, Adrian Gilli, Bernhard Wehrli, Robin Sue Gilli, Jan Georg Wiederhold, Nathalie Dubois
Summary: Historical industrial activities at Horn Richterwil in Switzerland have caused widespread metal contamination on land and in lake sediments. Using various techniques, researchers estimated the age and sources of contamination, revealing two different contamination events and pathways.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Ayo Anne, Soh Kengne Ebenezer, Djumyom Wafo Guy Valerie, Nbendah Pierre, Djomo Chimi Cedric, Nana Annie Stephanie, Djocgoue Pierre Francois, Kengne Noumsi Ives Magloire
Summary: This study identified macrophytes species with phytoremediation capacities in lowlands polluted by heavy metals in Yaounde, Cameroon. The diversity of macrophytes was higher in polluted sites compared to the control, with some families showing a higher taxonomic richness. More than 10 macrophytes species were identified for potential phytoremediation trials in contaminated areas.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2021)
Article
Environmental Sciences
Ayesha Aftab, Rukhsanda Aziz, Abdul Ghaffar, Muhammad Tariq Rafiq, Ying Feng, Zafeer Saqib, Muhammad Khalid Rafiq, Muhammad Akbar Awan
Summary: Uchalli Lake is an internationally significant Ramsar site that requires protection for migratory birds. The study assessed wetland health by examining water and sediments through heavy metals concentration, pollution indices, ecological risk assessment, and isotope tracer techniques. The findings showed high concentration of Al in water and severe enrichment of Cd and Pb in sediments. The lake is mainly recharged by local meteoric water and polluted by fertilizers, pesticides, and soil bonded metals.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Xinyu Lu, Karl August von Haxthausen, Andreas Libonati Brock, Stefan Trapp
Summary: Sediment microbial fuel cells have been found to effectively reduce phosphate release from sediments in eutrophic lakes, but their stimulation of sediment decomposition is limited and may not significantly accelerate the process. Increasing electrode power density could inadvertently increase the risk of releasing legacy pollutants stored in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Dickson Boboria, Matakite Maata, Francis S. Mani
Summary: The study reveals that the heavy metal levels in sediments of Marovo Lagoon are significantly higher compared to other Pacific studies, attributed to intense logging activities around the bay and other potential anthropogenic sources such as mining and waste discharge.
MARINE POLLUTION BULLETIN
(2021)
Article
Geochemistry & Geophysics
Olga Druzhinina, Laura Gedminiene, Kasper van den Berghe
Summary: This paper presents the results of geochemical research on the sediment of Kamyshovoe Lake, revealing possible anthropogenic sources of metals from the Neolithic to the Medieval period. The study shows that the role and usage of metals increased over time in the southeastern Baltic region, indicating a growing demand for metal objects.
Article
Biodiversity Conservation
Muhammad A. El-Alfy, Dina H. Darwish, Yasser A. El-Amier
Summary: The mean concentrations of heavy metals in the sediments of Burullus Lake shoreline are highest for Mn, followed by Fe, Zn, Co, Cu, Cd, Ni, Pb, and Cr. Cd concentrations exceeded safe limits for all samples, while Cr remained within limits. There is a high probability of toxic effects in the south-western side of the Lake. Hazard is present for Cd, Co, and Mn in certain sites for both adults and children. Carcinogenic risk assessment indicates a higher risk for children through ingestion pathway compared to adults.
HUMAN AND ECOLOGICAL RISK ASSESSMENT
(2021)
Article
Ecology
Reynolds Yvan Abende Sayom, Fils Thomas Roger Tchatchoua, Blanche Mefomdjo Fotie, Luc Leroy Mambou Ngueyep, Louis Bernard Tchuikoua, Arsene Meying
Summary: This study assesses the spatial distribution and contamination of trace metals and As in surface sediments along the Lom River in the abandoned gold mining sites of Bekao, Cameroon. Thirty-one surface sediment samples were collected and analyzed for Cr, Mn, Fe, Ni, Cu, Zn, Sn, Pb, and As concentrations. Various pollution indices were used to evaluate the pollution level, and the results indicate significant contamination and pollution of trace metals and As in sediments. Pearson's correlation matrix and GLM suggest that CSI and MERMQ are the most suitable indices for assessing trace metal and As concentrations.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Engineering, Environmental
Colin A. Cooke, Jason H. Curtis, William F. Kenney, Paul Drevnick, Peter E. Siegel
Summary: Lead and mercury emissions and deposition have long histories extending into preindustrial times, but the timing, magnitude, and persistence of preindustrial emissions remain unclear. This study uses a well-dated sediment core from Lake Antoine, Grenada to assess the past 3000 years of tropical lead and mercury deposition. The results show that preindustrial increases in lead and mercury concentrations can be explained by variations in mineral and organic matter inputs from the watershed, reflecting climate-driven changes in the lake level. There is no evidence that preindustrial use of lead and mercury raised deposition rates in this remote ecosystem. Industrial-era accumulation rates in Lake Antoine have been accelerated by land use and land cover change within the crater rim, but global industrial pollution is still evident. After correcting for watershed inputs, recent atmospheric deposition rates of lead and mercury are in close agreement with monitoring data, challenging previous assessments that suggested preindustrial use of mercury raised atmospheric deposition rates globally.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Tcogto Zh. Bazarzhapov, Valentina G. Shiretorova, Larisa D. Radnaeva, Elena P. Nikitina, Selmeg V. Bazarsadueva, Galina S. Shirapova, Suocheng Dong, Zehong Li, Shiqi Liu, Ping Wang
Summary: This study investigated the heavy metal pollution in the Lake Gusinoe basin in Russia. The results showed low pollution levels overall, but moderate pollution in the central part of the lake. Fresh water scarcity and heavy metal pollution are important issues in global climate change.