Article
Environmental Sciences
Thuy Minh Le, Chi Linh Thi Pham, Ha My Nu Nguyen, Thi Thuy Duong, Thi Phuong Quynh Le, Dong Thanh Nguyen, Nam Duc Vu, Tu Binh Minh, Tri Manh Tran
Summary: This study investigated the pollution status and distribution characteristics of ten typical phthalic acid esters (PAEs) in sediment samples collected from three rivers in Northern Vietnam. The results showed that DEHP was present at the highest levels in all samples, while DMP, DEP, and DPP were detected at lower frequencies and concentrations. Significant correlations were found between the median-chain PAEs in sediment samples, and the median-chain PAEs had a higher ecological risk than the short-chain PAEs.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Ronggen Jiang, Cai Lin, Kaiwen Zhou, Yang Liu, Jinmin Chen, Sumin Wang, Zhong Pan, Xiuwu Sun, Weili Wang, Hui Lin
Summary: The study evaluated the sources and pollution levels of PTEs in Yundang lagoon, China, finding widespread contamination with high ecological risks and toxicity mainly attributed to Hg and Cd. Organic carbon was found to play a critical role in PTEs, and the limited environmental carrying capacity of the lagoon may lead to progressive pollution accumulation.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Radhouan El Zrelli, Lamia Yacoubi, Takwa Wakkaf, Sylvie Castet, Michel Gregoire, Lamjed Mansour, Pierre Courjault-Rade, Lotfi Rabaoui
Summary: This study assessed the ecological risks in the heavily human-impacted lagoon of Bizerte by analyzing the enrichment of sediments with seven metals. Significant spatial variations in metal concentrations were found, indicating higher risks in the southern part of the lagoon. These findings can enhance the environmental management plan of the socio-economic important lagoon.
MARINE POLLUTION BULLETIN
(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
Environmental Sciences
Qiugui Wang, Jinlong Wang, Qiangqiang Zhong, Weigang Su, Yujun Ma, Jinzhou Du, Tangfu Xiao
Summary: A study was conducted to assess the impact of anthropogenic activities on Lake Qinghai's aquatic environment by analyzing the trace elements in the lake sediment. The results showed high concentrations of Cu, Cr, Pb, Zn, As, and Cd, with Pb, Zn, and Cd likely originating from coal, gasoline burning, and agricultural activities. The study also found an increasing ecological risk in Lake Qinghai since the 1950s, indicating ongoing high pollution pressure caused by anthropogenic activities.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Kamilou Ouro-Sama, Hodabalo Dheoulaba Solitoke, Gnon Tanouayi, Iuliana Mihaela Lazar, Petronela Bran, Marius Nadejde, Tchaa Esso-Essinam Badassan, Housseni Ahoudi, Akouete Yawovi Nyametso, Kissao Gnandi, Gabriel Octavian Lazar
Summary: The study evaluated the contamination level of trace elements and their spatial and seasonal variation in sediments of the Lake Togo-Lagoon of Aneho complex, revealing impacts from phosphorite mining and agricultural/urban effluents, with significant spatial and seasonal variations.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Marco Trifuoggi, Luciano Ferrara, Maria Toscanesi, Priyanka Mondal, Jonathan Muthuswamy Ponniah, Santosh Kumar Sarkar, Michele Arienzo
Summary: The study found that trace elements in surface sediments of the Hooghly estuary were contaminated by anthropic sources, especially As, Cd, and Ni, reaching the worst levels post-monsoon. Sediments showed varying degrees of pollution during monsoon seasons and at different locations, with an overall severe ecological risk present.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Olusegun A. A. Dada, Jummai O. O. Bello
Summary: Plastic marine debris has been found to have a negative impact on marine organisms and the environment. This study investigated the presence of microplastics in the Nigerian Lagos Lagoon ecosystem and found that they were present in the water, sediment, and certain fish species. The contamination was primarily due to plastic debris from recreational, industrial, and domestic waste. Urgent measures are needed to protect Nigeria's coastal and marine ecosystems from plastic pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Weili Wang, Yunlong Huo, Lingqing Wang, Cai Lin, Yang Liu, Haining Huang, Xiuwu Sun, Hui Lin
Summary: Contamination of trace elements in estuarine and bay ecosystems, especially in areas with aquaculture activities, has become a serious problem. This study investigated the concentration and spatial distribution of seven trace elements in surface sediments of Dongshan Bay, a typical aquaculture bay in China, to explore pollution risk, sources, and trends. The results showed that Cd and Hg were the principal pollution elements and ecological risk factors, with high levels of trace elements distributed in estuaries and aquaculture areas. The study also identified the main sources of trace elements, including natural sources, petrochemical industry and fossil fuel emissions, agricultural fertilizer use, and industrial and agricultural sewage discharge. Comparative analysis revealed significant changes in the content of different trace elements since 2008. This information is crucial for effective management and prevention of environmental risks associated with trace element pollution, particularly in aquaculture.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Zhengjia Zhao, Qiang Liu, Yibo Liao, Peisong Yu, Yanbin Tang, Qinghe Liu, Xiaolai Shi, Lu Shou, Jiangning Zeng, Quanzhen Chen, Jianfang Chen
Summary: To study the ecological risks of trace metals in sediments and their impact on benthic organisms, 12 trace metals were analyzed and macrobenthos were identified in sediments collected from the south coast of Zhejiang province in the East China Sea. The concentrations of most trace metals were high in the estuary, except for Ba and Sr. The concentration of Cd slightly exceeded the coastal background, indicating potential ecological risk. Methods based on sediment quality guidelines were found to be more intuitive in assessing ecological risk compared to those based on background values (PN, PLI, RI). Significant correlations were observed between ecological risks and benthos density and biomass, suggesting the negative impact of high concentrations of trace metals on macrobenthic survival in sediments.
MARINE POLLUTION BULLETIN
(2023)
Article
Ecology
Nsikak U. Benson, John P. Unyimadu, Imokhai T. Tenebe
Summary: This study analyzed organochlorinated pesticides (OCPs) in intertidal sediments and surface-mixed layer water of Lagos lagoon in Nigeria, revealing high contamination levels and potential health risks associated with exposures to OCPs. The dominant OCP compounds in sediments were dichlorodiphenylethanes, chlors, cyclodienes, HCHs, and endos, while water samples showed prevalence of dichlorodiphenylethanes, cyclodienes, chlors, HCHs, and endos. The findings suggest that the locations are pollution hotspots for various industrial and municipal wastes, and there is a need for appropriate management and control strategies.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Biodiversity Conservation
Md. Rezanul Islam, Mohammad Amirul Islam, Md. Deloar Hossain, Jenea Sultana, Md. Toufiqul Islam, Farzana Nahid
Summary: This study assessed the trace element pollution in river sediments of the Moyur River in Bangladesh and identified the contaminants present. The findings serve as a baseline for future monitoring and development of pollution control strategies for this urban river.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Philomina O. Peter, Azhar Rashid, Francois Nkinahamira, Hongjie Wang, Qian Wang, Mahmoud Gad, Chang-Ping Yu, Anyi Hu
Summary: The study found high concentrations of heavy metals in sediments from Yundang Lagoon in China, with spatial heterogeneity influenced by factors such as lake locations and pH. The research also elucidated the depth profile of elements in different samples.
MARINE POLLUTION BULLETIN
(2021)
Article
Chemistry, Multidisciplinary
Kuan-Nan Lin, Yee-Cheng Lim, Chiu-Wen Chen, Chih-Feng Chen, Chih-Ming Kao, Cheng-Di Dong
Summary: The study assesses the spatial and seasonal variations of heavy metals in sediment from Fengshan River and uses multiple sediment pollution indices to evaluate the pollution status and potential ecological risk. The results indicate significant spatial variations in heavy metal concentrations, with severe contamination observed in the lower reaches of the river. The study also highlights the importance of organic matters in the distribution of heavy metal pollutants in Fengshan River sediments. The findings offer valuable information for river pollution remediation and urban planning.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Ulaganathan Arisekar, Robinson Jeya Shakila, Rajendren Shalini, Geevartnam Jeyasekaran, Muruganantham Keerthana, Natarajan Arumugam, Abdulrahman Almansour, Karthikeyan Perumal
Summary: The Thamirabharani river is contaminated with high concentrations of heavy metals, especially in the estuarine region. This poses a moderate ecological risk to the marine ecosystem. Therefore, stringent monitoring measures need to be implemented by the relevant regulatory authorities.
Article
Geochemistry & Geophysics
D. T. Jayawardana, D. T. Udagedara, A. A. M. P. Silva, H. M. T. G. A. Pitawala, W. K. P. Jayathilaka, A. M. N. M. Adikaram
CHEMIE DER ERDE-GEOCHEMISTRY
(2016)
Article
Environmental Sciences
Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardana
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2017)
Article
Environmental Sciences
Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardana
ENVIRONMENTAL EARTH SCIENCES
(2017)
Article
Ecology
Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardana
REGIONAL STUDIES IN MARINE SCIENCE
(2017)
Article
Marine & Freshwater Biology
Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardana
ESTUARINE COASTAL AND SHELF SCIENCE
(2019)
Article
Multidisciplinary Sciences
D. T. Jayawardana, R. M. T. D. Madusanka, R. M. N. P. K. Jayasinghe, A. M. N. M. Adikaram, D. T. Udagedara
JOURNAL OF THE NATIONAL SCIENCE FOUNDATION OF SRI LANKA
(2019)
Article
Environmental Sciences
Dinushi Chamika Abeywardhana, Nayana Madurya Adikaram, Ranil Kavindra Asela Kularatne
Summary: This article discusses the potential of mangroves in Sri Lanka for remediation of coastal environments with low pollution, but highlights their lack of effectiveness in highly polluted environments.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Samikshya Mohanty, Madurya Adikaram, Debashish Sengupta, Nishara Madhubashini, Chelaka Wijesiri, Somnath Adak, Biswajit Bera
Summary: The Pulmoddai placer sands in Sri Lanka are an important rare earth element (REE) prospect with strategic economic resources. A detailed study of the geochemical, mineralogical, and textural properties of the heavy minerals in this region reveals their source, which is similar to calcium-silicate rocks. The sediments show high concentrations of silicon and manganese, and the presence of monazite, zircon, ilmenite, rutile, and xenotime. The sediment particles are poorly sorted and have angular grain boundaries, indicating their fluvial origin from a specific source rock.
INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
(2023)
Article
Ecology
Chaturanga Sandaruwan, Madurya Adikaram, Nadeesha Madugalla, Amarasooriya Pitawala, Hiroaki Ishiga, Tharanga Udagedara
Summary: This study analyzes the mineralogy and geochemistry of sediments along the southeast coast of Sri Lanka, finding that the sediments exhibit diverse geochemical characteristics, indicating a variety of sources and influences.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Madurya Adikaram, Amarasooriya Pitawala, Hiroaki Ishiga, Daham Jayawardhana
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2017)