Extended Data Fig. 6: Persistence results for OPFRs and their transformation products.
From: Uncovering global-scale risks from commercial chemicals in air
a, Modelled overall persistence for three chlorinated OPFRs (TCEP, TCPP and TDCPP) and their products. b, Modelled overall persistence for six non-chlorinated OPFRs (TBEP, TPhP, EHDP, TCP, TEHP and DPhP) and their products. c, Relative persistence for three chlorinated OPFRs and their transformation products (parent compound = 1). d, Relative persistence for six non-chlorinated OPFRs and their transformation products. Dark red, light red, dark blue and light blue represent chlorinated parent OPFRs, chlorinated OPFR products, non-chlorinated parent OPFRs, and non-chlorinated OPFR products, respectively. Note that a higher overall persistence indicates a higher persistence in the multimedia environment. Compounds marked with asterisks are those identified in megacity field samples.
