Tri(2,4-di- t -butylphenyl) Phosphate: A Previously Unrecognized, Abundant, Ubiquitous Pollutant in the Built and Natural Environment

作者：Marta Venier, William A. Stubbings, Jiehong Guo, Kevin Romanak, Linh Việt Nguyễn, Liisa M. Jantunen, Lisa Melymuk, Victoria H Arrandale, Miriam L. Diamond, Ronald A. Hites · 发表于：Environmental Science & Technology · 年份：2018 · DOI：10.1021/acs.est.8b02939 · 被引用次数：88 · 研究领域：Microplastics and Plastic Pollution、Recycling and Waste Management Techniques、Toxic Organic Pollutants Impact

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/m 3, 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.