کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4421049 | 1618988 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Studies and evaluation of the potential toxicity of decabromodiphenyl ethane to five aquatic and sediment organisms Studies and evaluation of the potential toxicity of decabromodiphenyl ethane to five aquatic and sediment organisms](/preview/png/4421049.png)
The potential toxicity of decabromodiphenyl ethane (DBDP-Ethane) was explored in 5 types of organisms residing in the water column and/or sediment, e.g. Oncorhynchus mykiss, Pseudokirchneriella subcapitata, Daphnia magna, Chironmus riparius, and Lumbriculus variegates. Fish, algae or Daphnia were unaffected by acute exposures to water accommodated fractions of 110 mg DBDP-Ethane/L. Chronic exposure to DBDP-Ethane at the highest dose tested, 5000 mg/kg dry sediment, did not affect midge mean development times, emergence or development rates or oligochaete survival, reproduction or dry weight. The chronic EC50, LOEC and NOEC were ≥5000 mg/kg in the two sediment species. Applying an assessment factor of 50, the unbounded predicted no effect concentration (PNECsediment) was 100 mg/kg dry sediment. The calculated PNEC indicates DBDPE-Ethane presents little risk to sediment organisms. These results add to DBDP-Ethane's existing database in the terrestrial compartment and mammals.
► Potential effects of decabromodiphenyl ethane were assessed in aquatic and sediment species.
► The 28-day NOECmidge, oligochaete was ≥5000 mg/kg d.w. sediment.
► The Acute NOECtrout, daphnia, algae was ≥110 mg/L WAF.
► The PNECsediment=100 mg/kg d.w. sediment.
► The Risk Quotientsediment based on reported environmental concentrations was 0.0043.
Journal: Ecotoxicology and Environmental Safety - Volume 75, 1 January 2012, Pages 73–79