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Bioaccumulation and effects of some technical triaryl phosphate products in fish and Nitocra Spinipes
Author(s) -
Bengtsson B.E.,
Tarkpea M.,
Sletten T.,
Carlberg G. E.,
Kringstad A.,
Renberg L.
Publication year - 1986
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620050910
Subject(s) - phoxinus , minnow , bioaccumulation , mugil , fish <actinopterygii> , phosphate , environmental chemistry , bioconcentration , brackish water , toxicology , chemistry , biology , fishery , ecology , biochemistry , salinity
Three commercial triaryl phosphates, Pliabrac 521, Reofos 95 and Reolub hyd 46, were tested for acute toxicity against the brackish‐water harpacticoid Nitocra spinipes Boeck (Crustacea) and the zebra fish, Brachydanio rerio Hamilton‐Buchanan. The 96‐h LC50 values ranged from 0.27 to 1.75 mg/L, with Pliabrac 521 as the most toxic and Reolub hyd 46 as the least toxic. The zebra fish was more than 10 times less sensitive to the tested compounds than was N. spinipes. Low to moderate accumulation of triaryl phosphates was observed. An accumulation factor (AF) of 100 to 2,000 was observed for Pliabrac 521 from water to bleak, Alburnus alburnus L. For the various triaryl phosphates, a dietary accumulation of 0.06 to 0.6 from food to minnow, Phoxinus phoxinus L., was observed. The most hydrophilic compounds were readily cleared from fish when the fish were placed in clean water, whereas the most lipophilic ones were still detectable, albeit in low concentrations, in the fish after a 2‐week depuration period. A rotatory‐flow behavioral study did not reveal any effects on swimming performance in the bleak, but reproduction was affected as a result of long‐term (163 d) exposure of minnows to subacute concentrations of Pliabrac 521.