Fire fighters are at a high risk for exposure to toxic chemicals during and subsequent to fire suppression activities. In the Canadian Fire Station Dust Study (CFSDS) we measured 19 polybrominated diphenyl ether (PBDE) and six organophosphate flame retardant (OPFR) chemicals in dust collected in 2017–18 by vacuuming the living quarters of 24 Canadian fire stations from four provinces. The predominant flame retardant (FR) was BDE-209, with a median concentration of 7060 ng/g, which was a magnitude higher than medians of the major congeners of the pentaBDE formulation measured at 620 ng/g (Σ₅ BDE-47, 99, 100, 153 and 154). OPFR median concentrations exceeded those of pentaBDE and were on the same order of magnitude as BDE-209, with TCIPP, TDCIPP and TPHP as the dominant OPFRs with median concentrations ranging from 2350 to 4780 ng/g. Fire station age and carpeting were significantly correlated with select OPFRs and PBDEs. Furthermore, fire stations that also vacuumed equipment bays and fire truck interiors had median concentrations that were a magnitude higher (BDE-209: 81,700 ng/g) and two to three-fold higher (TCIPP, TDCIPP and TPHP) than fire stations that excluded those areas. FR concentrations in CFSDS dust were higher but on the same order of magnitude as Canadian residential dust and significantly lower than dust collected from Canadian WEEE dismantling. CFSDS FR concentrations were also significantly lower than those we reported in our 2015 U.S. fire station dust. Our data reflect the downward trend of PBDEs following their phase out and a shift toward OPFRs as replacements.

在灭火活动期间和之后，消防人员极有可能接触有毒化学物质。在加拿大消防局粉尘研究（CFSDS）中，我们通过吸尘来自四个省的24个加拿大消防局的生活区，测量了2017-18年度收集的粉尘中的19种多溴联苯醚（PBDE）和6种有机磷酸盐阻燃剂（OPFR）化学物质。主要的阻燃（FR）为BDE-209，中位浓度的7060纳克/克，这比五溴二苯醚制剂在620纳克/克（Σ测量的主要同源的位数的大小更高₅BDE-47、99、100、153和154）。OPFR的中值浓度超过五溴二苯醚的浓度，与BDE-209处于同一数量级，其中TCIPP，TDCIPP和TPHP是主要的OPFR，中值浓度在2350至4780 ng / g之间。消防局的年龄和铺地毯与选择的OPFRs和PBDEs显着相关。此外，还给设备舱和消防车内部打扫的消防局的中位浓度比不包括在内的消防局高出一个数量级（BDE-209：81,700 ng / g），高出二至三倍（TCIPP，TDCIPP和TPHP）这些区域。CFSDS粉尘中的FR浓度较高，但与加拿大住宅粉尘的数量级相同，并且显着低于从加拿大WEEE拆除中收集的粉尘。CFSDS FR浓度也大大低于我们在2015年美国消防局粉尘中报告的浓度。我们的数据反映了多溴二苯醚逐步淘汰后的下降趋势，以及向替代磷酸二苯酯转化的趋势。