Sediment Ecological Risk Assessment
Ecological risk assessment of heavy metals in Hurghada coastal sediment, Red Sea, Egypt
... The area of study is covering the northern east of Hurghada coast at the Red Sea. It is located between 27º150º30´N and 33º56´0ººE (Fig. 1). The distance from the coast to the Giftun Islands is about (11-20 km wide) and ...
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Ecological consequences of sediment on high-energy coral reefs
... move sediment from areas with high natural loads, such as lagoons or reef flats, which, as with this study site, may be only a few tens of meters away ...anthropogenic sediment perturbations caused by ...
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Spatial and Seasonal Trend of Trace Metals and Ecological Risk Assessment along Kanyakumari Coastal Sediments, Southern India
... Remote assessment of netshore drift along the west coast of ...metals assessment in water, sediment, mussel and seagrass species-validation of the use of posidonia oceanica as a metal ...
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Integrated Environmental Quality Assessment of Kızılırmak River and its Coastal Environment
... an ecological risk index example, it is recent and its predictive ability has been widely tested ...river sediment metal concentrations, it has a value of ...the sediment samples which has ...
10
Landscape characteristics and North Carolina stream life: A multiple-scale ecological risk assessment of nonpoint source pollution
... Several factors may account for the greater importance of land cover at the watershed scale than at the riparian scale for the integrity of stream invertebrate communities. First, the stream reach spatial data used in ...
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Ecological risk assessment and contamination levels of heavy metals and pesticide residues in water and sediment from Ondo coastal region, Nigeria
... bottom sediment samples collected during the dry and rainy seasons were not contaminated with Zn, Cr, Cu and ...bottom sediment during the dry and rainy seasons falls in the Igeo class of 1, which means the ...
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Human and Ecological Risk evaluation of Toxic Metals in the Water and Sediment of River Cauvery
... The risk assessment of heavy metal ions in human even at trace levels is important, especially in the occupational and environmental exposure to toxic metals (Sung and Huang, ...
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Contamination and Ecological Risk Assessment of Heavy Metal in the Sediment of Turag River, Bangladesh: An Index Analysis Approach
... The sediment samples were directly collected from the Turag River during the dredging of Turag bed ...of sediment samples were dried in a vac- uum oven at 105˚C until constant weight, lightly ground in an ...
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Distribution And Ecological Risk Assessment Of Heavy Metals In The Sediment Cores From Manzala Lagoon, Egypt
... essential for a healthy life (e.g. Fe, Cu, Mn, and Zn), since exist in higher than normal concentrations such metals could lead to threaten human health (Farmer, 1991; Förstner and Wittmann, 1981). On the other hand, ...
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Study of Contamination and Risk Assessment of Heavy Metal in Fish (Otolithes ruber) and Sediments from Persian Gulf
... by sediment texture, mineralogical composition, reduction/oxidation state, desorption processes, and physical ...water, sediment, street dust, as well as organisms in urban areas [2] ...to ecological ...
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Ecological impacts of pollution on marine soft sediment assemblages
... The general experimental hypothesis in this study was that the observed differences in community composition of infaunal assemblages detected between the polluted and reference sites were due to both the direct effects ...
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Comparison of heavy metals contamination and ecological risk between soils enriched with compost and chemical fertilizers in the North of Iran and ecological risk assessment
... The levels of Pb and Zn in the soil were less than the standard value due to the lack of industrial factories in the region. Nevertheless, the use of chemical fertilizers led to the gradual accumulation of heavy metals ...
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Relationship between magnitude of body weight effects and exposure duration in mammalian toxicology studies and implications for ecotoxicological risk assessment
... toxicological risk assessment has to be conducted, which includes an assessment of long-term effects on mam- ...this assessment, a number of toxicity studies with rodents (conducted in order ...
7
BCR sequential extraction procedure study of superficial sediments from floodplain in Educandos (Manaus – Brazil)
... Historically, Tessier et al. (Tessier, Campbell, and Bisson 1979) proposed sequential extraction to predict metal behavior in a solid matrix, such as sediment and soil. However, the lack of uniformity in the ...
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Chemical Speciation, Bioavailability and Risk Assessment of Potentially Toxic Metals in Highway Dusts as Indicators of Highway Pollution
... lead carbonate formations [34]. High percentage (88%) contribution of Pb in non-residual fractions confirms the contribution of traffic on the contamination of study area and is an indicator of anthropogenic source for ...
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Ecological risk assessment of heavy metals from cement factory dust
... (17). Assessment of the heavy metals content in the dust generated by the Sagamu cement factory and its attendant health effects, especially on the inhabitants of the ...
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The 2015 Annual Meeting of SETAC German Language Branch in Zurich (7–10 September, 2015): Ecotoxicology and environmental chemistry—from research to application
... case studies and new test systems. Smitha Pillai (Eawag, Dübendorf, Switzerland) introduced an integrated sys- tematic methodology for better understanding the toxic mechanisms of manufactured nanomaterials (MNM) in ...
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Distribution and Pollution Assessment of Heavy Metals in Beidaihe Near Shore Marine Sediments
... potential ecological risk ( E r i ) of heavy metals are generally less than 40 except the risk index of Cd in sites 3rd, 6th, 15th, 20th, 21st, 23rd and 31st and the data of Hg at all sites are above ...
7
Distribution and partitioning of heavy metals in estuarine sediment cores and implications for the use of sediment quality standards
... in sediment cores collected from three estuaries (Thames, Medway and Blackwater) in south-east ...with sediment quality values (SQVs) to determine the potential ecotoxicological risk to ...
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Construction variants for a Sandbar breakwater in a dynamic coastal area
... Since the Sandbar breakwater is a new concept and due to the fact that during the construction process certain moments significant nourished sand volumes was naturally transported outside the design profile, the idea ...
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