Some effects of two phthalic acid esters on the life cycle of the midge (Chironomus plumosus)
"The lack of aquatic toxicity data on PAEs, their possible reproductive impairment of certain aquatic species, and their accumulation by other species indicates a need for further examination of their effects on aquatic organisms. One organism important in the diets of many fishes is the aquatic larva of the midge, Chironomus plumosus. The objectives of this study were to determine the acute toxicities of DEHP and DBP to midge larvae: to determine the effects of these chemicals on midge emergence and reproduction: to determine the potential of the larvae to accumulate these PAEs: and to develop a method for using hydrosoil in the chronic exposure of benthic macroinvertebrates to aquatic contaminants. Because PAEs have been found at relatively high concentrations in. hydrosoil, it was desirable to examine the effect of sand and hydrosoil aubstrates on the interactions between the PAEs and midges."
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