Search Results - "Ecological risk"

Mangrove ecosystems, serving as critical barriers at land–sea interfaces, face increasing threats from microplastic pollution. This study investigates the spatial distribution, diversity, and ecological risks of microplastics in sediments from the Zhangjiang Estuary mangroves, in southeastern China....

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The ecological risk of the sediment of the Hangzhou section of the Grand Canal was studied with potential ecological risk index. The results showed that, potential ecological risk of heavy metals in the sediment decreased as followed: Cd > Hg > Cu > Pb > As > Zn &a...

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The concentrations of 17 antibiotics in the surface water and groundwater of a typical river in the Huixian Wetland were measured, and the ecological and health risks of these antibiotics to surface water and groundwater were assessed. The three types of antibiotics measured included quinolones, tet...

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Coastal sediments are a powerful tool for analyzing pollution levels and reconstructing history. The Oualidia lagoon plays an essential role as it provides several ecosystem services, including aquaculture, fisheries, and coastal tourism, among others. Therefore, the conservation and protection of t...

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Seagrass species thrive in coastal ecosystems and known for their ability to accumulate heavy metals from their surrounding environment. This study aims to evaluate the ecological risks related to the accumulation of heavy metals in seagrass roots, leaves, and sediments. The seagrass examined belong...

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Chemical pollution in real-world environment often involves exposure to combinations of thousands of chemicals. However, due to the vast number of possible combinations, it is nearly impossible to conduct comprehensive mixture toxicity tests and risk assessments for all of them. This study applied f...

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A total of 18 surface soil samples were collected from surrounding of industrial district at north Baiji town, and the concentration of seven trace elements (i.e.  Cu, Pb, Zn, Ni, As, Cd and Cr) were analyzed. The geo-accumulation index, pollution index, Nemerow pollution index, ecological risk fac...

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Assessing the risks associated with waste disposal is essential for environmental protection and sustainable development, especially given concerns about the impact of industrial activities on the environment. This study analyses soil contamination in the Defor Petrila tailings-dump area caused by t...

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In recent years, the problem of environmental pollution caused by microplastics has attracted widespread attention. This paper reviews the latest research progress in terms of the source, content and distribution characteristics, harm, and detection technology of soil microplastics by referring to t...

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Amid ongoing climate warming and rapid urbanization, arid and semi-arid ecosystems face heightened threats and degradation. This study highlights the urgent need to construct ecological security pattern (ESP) that preserves critical ecosystem functions and strengthen ecological security in Northwest...

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Abstract The Red Sea’s near-shore zones are considered nurseries and grazing grounds for the various economic fish species. To illustrate the relation between human health and seafloor sediments, the geological and geochemical properties of seafloor sediments were investigated in near-shore zones at...

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Contamination by heavy metals in coastal and marine environments is an increasingly serious threat to both marine ecosystems and humans. The numerous marine cultivation and industrial zones along the coast of Khanh Hoa may influence the heavy metal contamination in the seawater and marine sediments...

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The source apportionment and ecological risk assessment of antibiotics in plain river network areas have become a research hotspot. In this study, the Changxing Plain River Network in the Taihu Lake Basin was chosen as the research area, where the Positive Matrix Factorization (PMF) model was used f...

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The present study deals with spatial and temporal variation of heavy metals and its contaminant in Qua Iboe River within five sampling locations, from January 2020 to June 2021. Seven heavy metals (Cd, Zn, Pb, Fe, Mn, Cr and Ni) were investigated using standards methods. Contamination factor (Cf),...

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Abstract During the first two decades of the 21st century, the level of polycyclic aromatic hydrocarbon (PAH) pollution in urban atmospheric particulate matter (PM) in China significantly increased. By combining data from more than 6,695 individual samples covering 89 typical cities (population >...

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This study systematically investigated the distribution patterns, migration characteristics, and removal efficiencies of three typical phthalate esters: dibutyl phthalate(DBP), diethyl phthalate(DEP), and diethylhexyl phthalate(DEHP) during a regenerated water treatment process at the Yanghu Regener...

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Potentially toxic elements (PTEs) are the most important indicators of environmental pollution and represent a potential risk to the ecology and human health in industrial regions. Eight potentially toxic elements (Mn, Ni, Co, Cr, Pb, Zn, Cd, As) in soils formed on the territory of the industrial si...

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Mangrove forests, vital coastal ecosystems that provide critical biodiversity habitats and carbon sequestration services, face increasing heavy metal pollution that threatens their ecological functions through bioaccumulation and toxicity to marine organisms. However, existing studies lack dynamic i...

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Triclosan is a widely used antimicrobial agent frequently detected in aquatic environments. Although its effects on environmental microorganisms have been extensively studied, findings often remain inconsistent due to variations in experimental setups and sediment characteristics. Comparative studie...

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