Current status of organophosphorus compounds contamination in Maizuru Bay, Japan. (15th October 2013)

• Record Type: Journal Article
• Authors: Harino, Hiroya; Yatsuzuka, Emi; Yamao, Chiaki; Ueno, Masaaki; Ohji, Madoka
• Is Part Of: Journal of the Marine Biological Association of the United Kingdom. Volume 94:Number 1(2014:Feb.)
• Page Start: 43
• Page End: 49
• Publication Date: 2013-10-15
• Subjects: organophosphorus compounds, -- Maizuru Bay, -- seawater, -- mussel, -- sediment; Biology -- Periodicals; Marine biology -- Periodicals; 578.77
• DOI: 10.1017/S002531541300129X
• Languages: English
• ISSNs: 0025-3154

Abstract

Abstract : The concentrations of organophosphoric acid triesters (OPEs) in water samples from Maizuru Bay were in the range of 3.0–62 ng/l. In general, the concentrations of OPEs were found in the order of TBXP > TDCPP > TCEP > TBP > TCP > TPP > TEP. The organophosphorous pesticides (OPPs) diazinon, fenitrothion, iprobenfos and chlorpyrifos were detected in water samples. The concentrations of OPEs in sediment from Maizuru Bay were in the range of <0.5–56 µg kg −1 dry weight (dw). Among OPPs, diazinon in sediment samples were in the range of 1.8–71 µg kg −1 dw. However, the detection frequencies of fenitrothion and chlorpyrifos in sediment were low. The concentrations of OPEs in mussels from Maizuru Bay were in the range of <1–34 µg kg −1 wet weight (ww). The concentrations of OPEs were found in the order of TBP > TDCPP > TCP > TBXP = TPP = TCEP. Pesticides were detected in mussels, but these concentrations were lower than the acceptable daily intake (ADI) values. The partition coefficients between water and sediment (Kws) of diazinon and fenitrothion were 200–1300 and 200–300, respectively and the partition coefficients between water and biological samples (Kwb) of diazinon and fenitrothion were 700–3300 and 450–700, respectively, suggesting that these pesticides accumulate in biological samples at higher rates than in sediment.