Insights into the Atmospheric Persistence, Transformation, and Health Implications of Organophosphate Esters in Urban Ambient Air

• DOI: 10.1021/acs.est.2c01161
• Publication Date: 2022-08-11T01:29:19Z
• Authors: Jia-Yong Lao; Huiju Lin; Xian Qin; Yuefei Ruan; Kenneth M. Y. Leung; Eddy Y. Zeng; Paul K. S. Lam
• Keywords: Persistence (discontinuity); Health Risk Assessment

Transformation of organophosphate esters (OPEs) in natural ambient air and potential health risks from coexposure to OPEs their transformation products are largely unclear. Therefore, a novel framework combining field-based investigation, silico prediction, target suspect screening was employed understand atmospheric persistence impacts OPEs. Alkyl-OPE ubiquitously occurred urban air. The ratios tris(2-butoxyethyl) phosphate were size-dependent, implying that processes may be affected by particle size. chlorinated- aryl-OPEs not detected particles, dry deposition might significantly contribute removal. Although inhalation risk low, related underestimated as constrained the identification plausible toxicity testing vitro or vivo at current stage. present study highlights significant impact size on suggests assessments should conducted with concurrent consideration both parental compounds OPEs, view nonnegligible abundances silico.