Sorption and migration of organophosphate flame retardants between sources and settled dust.

ABSTRACT: Dust serves as a strong sink for indoor pollutants, such as organophosphorus flame retardants (OPFRs). OPFRs are semivolatile chemicals that are slow in emissions but have long-term effects in indoor environments. This research studied the emission, sorption, and migration of OPFRs tris(2-chloroethyl) phosphate, tris(1-chloro-2-propyl) phosphate, and tris(1,3-dichloro-2-propyl) phosphate, from different sources to settled dust on OPFR source surfaces and OPFR-free surfaces. Four sink effect tests and six dust-source migration tests, including direct contact and sorption tests were conducted in 53 L stainless steel small chambers at 23 °C and 50% relative humidity. OPFR emission concentrations, and sorption and migration rates were determined. The dust-air and dust-material partition coeffi

SUBMITTER: Liu X 

PROVIDER: S-EPMC8204724 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature