TY - JOUR
T1 - Tris(2,4-di-tert-butylphenyl)phosphate
T2 - An Unexpected Abundant Toxic Pollutant Found in PM2.5
AU - Shi, Jingchun
AU - Xu, Caihong
AU - Xiang, Li
AU - Chen, Jianmin
AU - Cai, Zongwei
N1 - Funding Information:
We thank the research grants from Natural Science Foundation of China (nos. 91843301, 21527814, 21906023), Sanming Project of Medicine in Shenzhen (SZSM201811070), and National Key Research and Development Program-Cooperation on Scientific and Technological Innovation in Hong Kong, Macau, and Taiwan (2017YFE0191000, 2018YFA0901100) for the financial supports.
Publisher copyright:
© 2020 American Chemical Society
PY - 2020/9/1
Y1 - 2020/9/1
N2 - A novel pollutant, tris(2,4-di-tert-butylphenyl)phosphate (I168O), was identified in urban fine particulate matter (PM2.5) samples in a nontargeted screening based on mass spectrometry for the first time. I168O was detected in all samples collected from two typical cities far away from each other in China. The concentrations of I168O reached up to 851 (median: 153) ng/m3, indicating that it was a widespread and abundant pollutant in the air. The antioxidant Irgafos 168 [I168, tris(2,4-di-tert-butylphenyl)phosphite] popularly added in plastics was the most suspected source for the detected I168O. Simulation studies indicated that heating, UV radiation, and water contact might significantly (p < 0.05) transform I168 to I168O. In particular, I168O might be magnificently evaporated into the air at high temperatures. The outdoor inhalation exposure of I168O may exert substantial health risks.
AB - A novel pollutant, tris(2,4-di-tert-butylphenyl)phosphate (I168O), was identified in urban fine particulate matter (PM2.5) samples in a nontargeted screening based on mass spectrometry for the first time. I168O was detected in all samples collected from two typical cities far away from each other in China. The concentrations of I168O reached up to 851 (median: 153) ng/m3, indicating that it was a widespread and abundant pollutant in the air. The antioxidant Irgafos 168 [I168, tris(2,4-di-tert-butylphenyl)phosphite] popularly added in plastics was the most suspected source for the detected I168O. Simulation studies indicated that heating, UV radiation, and water contact might significantly (p < 0.05) transform I168 to I168O. In particular, I168O might be magnificently evaporated into the air at high temperatures. The outdoor inhalation exposure of I168O may exert substantial health risks.
UR - http://www.scopus.com/inward/record.url?scp=85090177208&partnerID=8YFLogxK
U2 - 10.1021/acs.est.0c03709
DO - 10.1021/acs.est.0c03709
M3 - Journal article
C2 - 32786564
AN - SCOPUS:85090177208
SN - 0013-936X
VL - 54
SP - 10570
EP - 10576
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 17
ER -
