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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Karjalainen, A. K. Vuori, K. M. Leppänen, M. T. Salmelin, J. Kiviranta, H. Hämäläinen, H. Kukkonen, J. V. K. |
| Description | Country affiliation: Finland Author Affiliation: Salmelin J ( Department of Biological and Environmental Science, University of Jyvaskyla, P.O. Box 35, FI-40014, Jyväskylä, Finland. johanna.k.salmelin@jyu.fi.); Karjalainen AK ( Laboratory Centre/Ecotoxicology and Risk Assessment, Finnish Environment Institute, Survontie 9 A, FI-40500, Jyväskylä, Finland. johanna.k.salmelin@jyu.fi.); Hämäläinen H ( Department of Biological and Environmental Science, University of Jyvaskyla, P.O. Box 35, FI-40014, Jyväskylä, Finland.); Leppänen MT ( Laboratory Centre/Ecotoxicology and Risk Assessment, Finnish Environment Institute, Survontie 9 A, FI-40500, Jyväskylä, Finland.); Kiviranta H ( Department of Biological and Environmental Science, University of Jyvaskyla, P.O. Box 35, FI-40014, Jyväskylä, Finland.); Kukkonen JV ( Laboratory Centre/Ecotoxicology and Risk Assessment, Finnish Environment Institute, Survontie 9 A, FI-40500, Jyväskylä, Finland.); Vuori KM ( National Institute for Health and Welfare/Department of Health Protection/Chemicals and Health Unit, P.O. Box 95, FI-70701, Kuopio, Finland.) |
| Abstract | We evaluated the utility of chironomid and lamprey larval responses in ecotoxicity assessment of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/F)-, polychlorinated biphenyls (PCB)- and mercury (Hg)-contaminated river sediments. Sediment samples were collected from the River Kymijoki with a known industrial pollution gradient. Sediment for the controls and lamprey larvae were obtained from an uncontaminated river nearby. Contamination levels were verified with sediment and tissue PCDD/F, PCB and Hg analyses. Behaviour of sediment-exposed chironomid and lamprey larvae were measured with Multispecies Freshwater Biomonitor© utilizing quadrupole impedance conversion technique. In addition, mortality, growth and head capsule deformity incidence of chironomids were used as ecotoxicity indicators. WHOPCDD/F+PCB-TEQ in the R. Kymijoki sediments ranged from the highest upstream 22.36 ng g(-1) dw to the lowest 1.50 ng g(-1) near the river mouth. The sum of PCDD/Fs and PCBs correlated strongly with Hg sediment concentrations, which ranged from <0.01 to 1.15 µg g(-1). Lamprey tissue concentrations of PCDD/Fs were two orders and PCBs one order of magnitude higher in the R. Kymijoki compared to the reference. Chironomid growth decreased in contaminated sediments and was negatively related to sediment ∑PCDD/Fs, WHOPCDD/F+PCB-TEQ and Hg. There were no significant differences in larval mortality or chironomid mentum deformity incidence between the sediment exposures. The distinct behavioural patterns of both species indicate overall applicability of behavioural MFB measurements of these species in sediment toxicity bioassays. Chironomids spent less and lampreys more time in locomotion in the most contaminated sediment compared to the reference, albeit statistically significant differences were not detected. Lamprey larvae had also a greater activity range in some of the contaminated sediments than in the reference. High pollutant levels in lamprey indicate risks for biomagnification in the food webs, with potential health risks to humans consuming fish. |
| ISSN | 09441344 |
| Issue Number | 18 |
| Journal | Environmental Science and Pollution Research |
| Volume Number | 23 |
| e-ISSN | 16147499 |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2016-09-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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