Occurrence and distribution of organophosphorus esters in soils and wheat plants in a plastic waste treatment area in China.
This study for the first time reported the occurrence, distribution and concentrations of organophosphate esters (OPEs) in soils caused by plastic waste treatment, as well as their influence on OPE accumulation in wheat (Triticum aestivum L.). Eight OPEs were detected with the total concentrations of 38-1250 ng/g dry weight in the soils from the treatment sites, and tributoxyethyl phosphate and tri(2-chloroethyl) phosphate present as the dominant OPEs. There were similar distribution patterns of OPEs and significant correlations between the total OPE concentrations in the soils from the plastic waste treatment sites with those in the nearby farmlands (P < 0.005), indicating that plastic waste treatment caused the OPE contamination of farmland soils. The uptake and translocation of OPEs by wheat were determined, with OPEs of high hydrophobicity more easily taken up from soils and OPEs with low hydrophobicity more liable to be translocated acropetally.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, China.
Weining
W
Wan
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, China. Electronic address: szzhang@rcees.ac.cn.
Shuzhen
S
Zhang
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, China.
Honglin
H
Huang
School of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei, 050018, China.
Tong
T
Wu
D002681:China; D004784:Environmental Monitoring; D004952:Esters / Q000032:analysis*; D010755:Organophosphates / Q000032:analysis*; D009943:Organophosphorus Compounds; D010969:Plastics; D012987:Soil / Q000737:chemistry*; D014908:Triticum / Q000187:drug effects / Q000378:metabolism; D064091:Waste Disposal Facilities
D004952:Esters; D010755:Organophosphates; D009943:Organophosphorus Compounds; D010969:Plastics; D012987:Soil; C013320:tris(2-butoxyethyl) phosphate
Accumulation; Organophosphorus esters; Plastic waste treatment; Soil; Wheat