Ecological risk assessment of trace metals in sediments under reducing conditions based on isotopically exchangeable pool
| Autor: | Lingchen Mao, Hua Ye, Nanxia Yan, Feipeng Li, Hui Kong |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
China
Geologic Sediments Radioisotope Dilution Technique Environmental Engineering 04 agricultural and veterinary sciences General Medicine Chemical Fractionation 010501 environmental sciences Risk Assessment 01 natural sciences Trace Elements Trace (semiology) Rivers Metals Heavy Environmental chemistry 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Ecological risk sense organs skin and connective tissue diseases Oxidation-Reduction Water Pollutants Chemical Environmental Monitoring 0105 earth and related environmental sciences |
| Zdroj: | Journal of Environmental Science and Health, Part A. :1-10 |
| ISSN: | 1532-4117 1093-4529 |
| DOI: | 10.1080/10934529.2020.1857154 |
| Popis: | Determination of potential mobility of toxic trace metals in sediments under changing redox condition is important in ecological risk assessment. Current methods are limited in risk prediction in such dynamic environment. In this study, we have discussed the general disagreement from widely used methods (sediment quality guideline (SQGs), potential ecological risk index (PERI), risk assessment code (RAC) using BCR fraction information). In addition, the stable isotopic dilution method (IDM) was also modified to quantify metal lability in a microcosm experiment mimicking river bank sediment turning into anaerobic. The isotopically exchangeable Cd, Cu, Pb, and Zn quantified by IDM ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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