Chlorinated organophosphate esters

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August undefined, 2024

WebFeb 20, 2024 · Chlorinated OPEs, such as tris (2-chloroethyl) phosphate (TCEP), tris (2-chloro-propyl) phosphate (TCIPP), and tris (1,3-dichloro-2-propyl) phosphate (TDCIPP), are frequently used as flame retardants, whereas non-chlorinated OPEs, such as tri- n-butyl phosphate (TnBP), tris (2-butoxyethyl) phosphate (TBOEP), triphenyl phosphate (TPhP), … WebNov 20, 2024 · Organophosphate esters were usually measured in human blood, breast milk, hair, and nail samples, while their metabolites were usually measured in urine samples. Organophosphate esters are characterized with a wide range of physicochemical properties (Table S1), e.g. , log K ow ranging from −0.65 for trimethyl phosphate (TMP) …

An overview of organophosphate esters and their ... - ScienceDirect

WebMar 6, 2024 · Unfortunately, the chemical constituents of OPFRs, organophosphate esters (OPEs), which have been proven to be carcinogenic and biotoxic, can release into the environment and pose potential risks to human health. ... Enrichment and characterization of chlorinated organophosphate ester-degrading mixed bacterial cultures. J Biosci … WebDec 7, 2016 · The concentrations of six organophosphate esters (OPEs) in atmospheric particle phase samples collected once every 12 days at five sites in the North American Great Lakes basin over the period of March 2012 to December 2014, inclusive, are reported. These OPEs include tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl) … t-online browser downloaden

Organophosphate vs. Chlorinated Hydrocarbon Pesticides

WebMar 1, 2024 · Although the environmental and health risks of chlorinated organophosphate esters (OPEs-Cl) have drawn much attention, its environmental behaviors have been insufficiently characterized. As a notable sink of this emerging contaminant, non-sanitary landfills, which may decompose/accumulate OPEs-Cl, is of … WebEleven organophosphate esters (OPEs) were detected in surface water and sediment samples from yearly sampling (2013–2024) in the Canadian Arctic. In water samples, ∑chlorinated-OPEs (Cl-OPEs) concentrations exceeded ∑non-chlorinated-OPEs (non-Cl-OPEs) with median concentrations of 10 ng L–1 and 1.3 ng L–1, respectively. In … WebMost investigations on organophosphate esters (OPEs) are conducted predominantly in a separate biological or abiotic medium, and few joint analyses have been performed in the mariculture ecosystem based on yearly sampling. ... Chlorinated OPEs were the predominant congeners detected in seawater, whereas alkyl-OPEs were the leading … t-online browser für windows 11

A nationwide survey of 19 organophosphate esters in soils from …

WebChlorinated phosphate flame retardants are one type of organophosphate flame retardant. They have been added to a variety of products, such as foam used in upholstered … WebOrganophosphate esters (OPEs) are ubiquitous in the environment, but little is known about their distribution in soils. ... Shanghai (388 ng/g dw), and Guangzhou (430 ng/g dw). Chlorinated (Cl-) OPEs were the predominant compounds, accounting for over 74.0% of Sigma OPE concentrations in soils from China. In soil samples from Northeastern and ... t-online browser für androidWebAug 24, 2024 · Organophosphate Pesticides: •Organophosphate pesticides degrade rapidly by hydrolysis on exposure to sunlight, air, and soil. •Small amounts can be … t-online center login

"WebMar 7, 2024 · Abstract. Human exposure to organophosphate esters (OPEs) is more pervasive in industrial areas manufacturing OPE-related products. OPE exposure is of great concern due to its associations with … " - Chlorinated organophosphate esters

Chlorinated organophosphate esters

Reductive degradation of chlorinated organophosphate …

WebJan 1, 2024 · Semantic Scholar extracted view of "Metabolites of organophosphate esters in urine from the United States: Concentrations, temporal variability, and exposure assessment." ... Human Exposure to Chlorinated Organophosphate Ester Flame Retardants and Plasticizers in an Industrial Area of Shenzhen, China. Yunlang Liu, T. …

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WebNov 23, 2024 · Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in many industrial applications, and show an exponentially increasing global market 1,2. WebApr 1, 2024 · 1. Introduction. Chlorinated organophosphate esters (Cl-OPEs), such as tris(2-chloroethyl) phosphate (TCEP), tris(2-chloro-1-methylethyl) phosphate (TCPP), …

WebMay 11, 2016 · OPCFRs are divided into five main groups: organophosphates, organophosphonates, organophosphinates, organoposphine oxide, and organophosphites. Most of OPFRs are organophosphate esters that are further classified into the following five groups: 1. Aliphatic, 2. Brominated aliphatic, 3. Chlorinated aliphatic, 4. Aromatic … WebOct 1, 2024 · Human Exposure to Chlorinated Organophosphate Ester Flame Retardants and Plasticizers in an Industrial Area of Shenzhen, China. Yunlang Liu, T. Zhu, +5 authors Jianyi Chen; ... suggesting that regional levels of organophosphate esters are associated with the magnitudes of regional economic development.

WebMar 7, 2024 · Human exposure to organophosphate esters (OPEs) is more pervasive in industrial areas manufacturing OPE-related products. OPE exposure is of great concern due to its associations with adverse health effects, while studies on OPE exposure in industrial districts are scarce. This study aimed to assess human exposure to OPEs in a typical … WebJul 1, 2008 · Chlorinated organophosphate ester (OPE)-degrading enrichment cultures were obtained using tris(2-chloroethyl) phosphate (TCEP) or tris(1,3-dichloro-2-propyl) …

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WebDec 5, 2024 · 摘要: 为探究北江中上游流域的阻燃剂污染状况和风险水平，采用气相色谱-串联质谱 (GC-MS/MS)法测定了34个地表水样品和8个沉积物样品中31种阻燃剂的浓度，包括多溴联苯醚 (PBDEs)、六溴环十二烷 (HBCD)、四溴双酚A (TBBPA)这3种溴代阻燃剂和28种有机磷阻燃剂 (OPFRs ... t-online center öffnenWebMar 28, 2024 · Organophosphate ester flame retardants consist of straight (alkyl) or aromatic (aryl) chains attached to a phosphate moiety. Some OPFRs, e.g., Tris (1-chloro-2-propyl) phosphate (TCPP), are also chlorinated. OPFRs are mainly used as flame retardant plasticizers in engineering plastics ( Brandsma et al., 2013 ). t-online champions leagueWebOrganophosphate esters are mostly chemical additives just mixed with containing materials, and so are prone to being released into the surrounding environment [163].Among these additive organophosphate compounds are the chlorinated organophosphate (OP) esters, namely tris(1,3-dichloro-2-propyl) phosphate (TDCPP), tris(1-chloro-2-propyl) … t-online cartoonWebThe samples were analysed for the non-chlorinated organophosphate esters tri-n-butylphosphate (TnBP), tri-iso-butylphosphate (TiBP), tris-(butoxyethyl)-phosphate (TBEP) and triphenylphosphate (TPP) and the chlorinated organophosphate esters tris-(2-chloro, 1-methylethyl)-phosphate (TCPP), tris-(2-chloro-, 1-chloromethylethyl)-phosphate (TDCP ... t-online chinaWebApr 1, 2024 · The wide use of chlorinated organophosphate esters (Cl-OPEs) as additive flame retardants has aroused concern about their potential risks on ecosystem and human health. However, knowledge about the toxicity of Cl-OPEs on soil organisms remains limited. t-online business mailserverWebThe uptake, translocation and biotransformation of organophosphate esters (OPEs) by wheat (Triticum aestivum L.) were investigated by a hydroponic experiment. The results demonstrated that OPEs with higher hydrophobicity were more easily taken up by roots, and OPEs with lower hydrophobicity were more liable to be translocated acropetally. A total … t-online bubble shooter kostenlos onlineWebMar 7, 2024 · Human exposure to organophosphate esters (OPEs) is more pervasive in industrial areas manufacturing OPE-related products. OPE exposure is of great … t-online computerhilfe