field study of the relationship between sulfide-bound metals and bioaccumulation by Limnodrilus sp. in a heavily polluted river

Acid volatile sulfide (AVS) has been regarded as an important factor controlling metal bioavailability in anoxic sediments, but its effect on metal accumulation under natural conditions is poorly understood. Here, a field study of the influence of AVS on metal accumulation by Limnodrilus sp. in a he...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2014-08, Vol.186 (8), p.4935-4946
Main Authors: Li, Feng, Zeng, Xiang-yun, Yu, Yun-jun, Wu, Chang-hua, Mai, Ge, Song, Wei-wei, Wen, Yan-mao, Duan, Zhi-peng, Yang, Jia-yu
Format: Article
Language:English
Subjects:
Animals
Atmospheric Protection/Air Quality Control/Air Pollution
Benthic fauna
Bioaccumulation
Bioavailability
Cadmium
Civil engineering
Developing countries
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental impact
Environmental Management
Environmental Monitoring
Environmental science
Field study
foods
Freshwater
Geologic Sediments - chemistry
Invertebrates
LDCs
Lead
Limnodrilus
Metal concentrations
Metals
Metals, Heavy - analysis
Metals, Heavy - chemistry
Metals, Heavy - metabolism
Monitoring/Environmental Analysis
Oligochaeta - metabolism
Pollution
Pore water
Rivers
Rivers - chemistry
Sediments
Studies
Sulfides
Sulfides - analysis
Sulfides - chemistry
Toxicity
trace elements
Trace metals
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water Pollutants, Chemical - metabolism
Water pollution
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Summary:Acid volatile sulfide (AVS) has been regarded as an important factor controlling metal bioavailability in anoxic sediments, but its effect on metal accumulation under natural conditions is poorly understood. Here, a field study of the influence of AVS on metal accumulation by Limnodrilus sp. in a heavily polluted river is provided. Most of the study area was subject to anaerobic and strongly reducing conditions, and the concentration of trace metals in surface sediments was high, as were the concentration of AVS and simultaneously extracted metals (SEM; average AVS = 20.3 μmol g⁻¹, average ∑SEM₅ = 9.42 μmol g⁻¹; ∑SEM₅ refers to the sum of SEMCd, SEMCᵤ, SEMPb, SEMNᵢ, and SEMZₙ). Only a few species and small quantities of benthic invertebrates were found, and Limnodrilus sp. was dominant. There was no correlation between trace metal accumulation and (SEM-AVS), and in stations where (SEM-AVS)
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-014-3749-y