title: Identification of chlorfenvinphos toxicity in a municipal effluent in Sydney, New South Wales, Australia.
abstract: Acute toxicity in a municipal sewage treatment plant in Sydney, New South Wales, Australia, was traced to chlorfenvinphos, an organophosphorous pesticide. Toxicity identification evaluation procedures led to the tentative identification of chlorfenvinphos as the toxic contaminant in the sample. Subsequent analytical verification revealed 0.95 microg/L of chlorfenvinphos in the effluent sample, and spiking studies confirmed that it accounted for the observed toxicity. The 48-h median lethal concentration of chlorfenvinphos to Ceriodaphnia dubia averaged 0.28 microg/L (n = 4). Source-control measures were effective at eliminating chlorfenvinphos and associated toxicity from the discharge.
authors.affiliation: EVS Environment Consultants, 195 Pemberton Avenue, North Vancouver, British Columbia V7P 2R4, Canada. howard@nautilusenvironmental.com
authors.forename: Howard C
authors.initials: HC
authors.lastname: Bailey
authors.forename: James R
authors.initials: JR
authors.lastname: Elphick
authors.forename: Rick
authors.initials: R
authors.lastname: Krassoi
authors.forename: Ann-Marie
authors.initials: AM
authors.lastname: Mulhall
authors.forename: Adam J
authors.initials: AJ
authors.lastname: Lovell
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Slee
mesh_terms: D000818:Animals; D002709:Chlorfenvinphos / Q000633:toxicity*; D000460:Chlorophyta / Q000187:drug effects; D003445:Crustacea / Q000187:drug effects; D007306:Insecticides / Q000633:toxicity*; D013058:Mass Spectrometry; D009517:New South Wales; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D007306:Insecticides; D014874:Water Pollutants, Chemical; D002709:Chlorfenvinphos