Using high-resolution mass spectrometry, we identified tri(2,4-di- t-butylphenyl) phosphate (TDTBPP) in e-waste dust. This is a previously unsuspected pollutant that had not been reported before in the environment. To assess its abundance in the environment, we measured its concentration in e-waste dust, house dust, sediment from the Chicago Ship and Sanitary Canal, Indiana Harbor water filters, and filters from high-volume air samplers deployed in Chicago, IL. To provide a context for interpreting these quantitative results, we also measured the concentrations of triphenyl phosphate (TPhP), a structurally similar compound, in these samples. Median concentrations of TDTBPP and TPhP were 14 400 and 41 500 ng/g, respectively, in e-waste dust and 4900 and 2100 ng/g, respectively, in house dust. TDTBPP was detected in sediment, water, and air with median concentrations of 527 ng/g, 3700 pg/L, and 149 pg/m3, respectively. TDTBPP concentrations were generally higher or comparable to those of TPhP in all media analyzed, except for the e-waste dust. Exposure from dust ingestion and dermal absorption in the e-waste recycling facility and in homes was calculated. TDTBPP exposure was 571 ng/kg bw/day in the e-waste recycling facility (pro-rated for an 8-h shift), and 536 ng/kg bw and 7550 ng/kg bw/day for adults and toddlers, respectively, in residential environments.

• MeSH
• dospělí MeSH
• fosfáty MeSH
• látky znečišťující životní prostředí * MeSH
• lidé MeSH
• prach MeSH
• retardanty hoření * MeSH
• znečištění vzduchu ve vnitřním prostředí * MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Chicago MeSH
• Indiana MeSH

Concentrations of 13 organophosphate ester flame retardants (OPEs) were measured in air, dust and window wipes from 63 homes in Canada, the Czech Republic and the United States in the spring and summer of 2013 to look for abundances, differences among regions, and partitioning behavior. In general, we observed the highest concentrations for halogenated OPEs, particularly TCEP, TCIPP and TDCIPP, and also non-halogenated TPHP. Differences between regions strongly depended on the matrix. The concentrations of OPEs in dust were significantly higher in the US than in Canada (CAN) and Czech Republic (CZ). CZ had the highest concentrations in window film and CAN in air. ΣOPE concentrations were 2-3 and 1-2 orders of magnitude greater than ΣBFRs in air, and dust and window films, respectively. We found a significant relationship between the concentrations in dust and air, and between the concentrations in window film and air for OPEs with log KOAvalues <12, suggesting that equilibrium was reached for these compounds but not for those with log KOA>12. This hypothesis was confirmed by a large discrepancy between values predicted using a partitioning model and the measured values for OPEs with log KOAvalues >12.

• MeSH
• estery analýza   MeSH
• látky znečišťující vzduch analýza   MeSH
• monitorování životního prostředí MeSH
• organofosfáty analýza   MeSH
• prach analýza   MeSH
• retardanty hoření analýza   MeSH
• roční období MeSH
• znečištění vzduchu ve vnitřním prostředí analýza   MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika MeSH
• Indiana MeSH
• Ontario MeSH

• MeSH
• empatie MeSH
• kongresy jako téma MeSH
• lidé MeSH
• nemocnice MeSH
• poskytování zdravotní péče organizace a řízení   MeSH
• symptomy dolních močových cest chirurgie   ošetřování   MeSH
• urologie MeSH
• vztahy mezi lékařem a pacientem MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• autobiografie MeSH
• Geografické názvy
• Indiana MeSH

• MeSH
• doškolování MeSH
• jednotky intenzivní péče o novorozence organizace a řízení   MeSH
• lidé MeSH
• Check Tag
• lidé MeSH
• Geografické názvy
• Indiana MeSH