期刊
MARINE POLLUTION BULLETIN
卷 56, 期 9, 页码 1598-1608出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2008.05.018
关键词
mussels; Mytilopsis leucophaeata; polycyclic aromatic hydrocarbons; stormwater runoff; detention pond; South Carolina
资金
- South Carolina Sea Grant Consortium [V473]
- South Carolina Department of Natural Resources
- The Citadel Foundation
The distribution of PAHs was studied in sediment and false dark mussels, Mytilopsis leucophaeata, of three brackish stormwater retention ponds on Kiawah Island, a gated residential community and golf resort. Impervious surface in pond watersheds ranged from 5 to 30%. Sediment concentrations were lower than those found in other studies of suburban residential areas, and there were no significant differences among ponds or seasons. Mean Sigma PAH(16) values for sediments in Ponds 67, 100, and 37 were 184.7 +/- 101.3 ng g(-1), 67.5 +/- 26.0 ng g(-1), and 84.3 +/- 75.5 ng g(-1), respectively. Mussel Sigma PAH(16) concentrations from Pond 67 in August (mean 734.5 +/- 148.1 ng g(-1)), and from Pond 37 in December (mean 1115.1 +/- 87.7 ng g(-1)), were significantly higher than other ponds. Mean Sigma PAH(16) values for mussels in Ponds 67, 100, and, 37 were 555.9 +/- 219.7 ng g(-1), 312.5 +/- 99.1 ng g(-1) and 737.8 +/- 419.8 ng g(-1), respectively. The mean biota-to-sediment ratio was 7.6 +/- 8.1. Isomer ratios generally suggested pyrogenic sources. False dark mussels are a promising indicator species for PAH contamination because they are abundant, easy to sample, bioaccumulate PAH profiles representative of the time-integrated sediment profiles, and their PAH levels are less variable than either stormwater or sediment samples. (C) 2008 Elsevier Ltd. All rights reserved.
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