2019 Yes https://www.sciencedirect.com/science/article/pii/S0048969719316067?via%3Dihub Sakhi, Amrit Kaur Europe Observational Epidemiology Study Indoor air phthalates Short-chain chlorinated paraffins Organophosphorous flame retardants Polychlorinated biphenyls Polybrominated diphenyl ethers In both the households and schools, median levels of low molecular weight phthalates (785 ng/m3), OPFRs (55 ng/m3)and SCCPs (128 ng/m3) were up to 1000 times higher than the levels of PCBs (829 pg/m3) and PBDEs (167 pg/m3). Median concentrations of dimethyl phthalate (DMP), diethyl phthalate (DEP), di-isobutyl phthalate (DiBP) and SCCPs were 3–6 times higher in households compared to schools.