Firefighters are exposed to chemicals during fire events and we previously demonstrated that fire station dust has high levels of polybrominated diphenyl ethers (PBDEs). In conducting the Fire Station Dust Study, we sought to further characterize the chemicals to which firefighters could be exposed – measuring the emerging class of phosphorous-containing flame retardants (PFRs) in fire stations, for the first time, as well as PBDEs. Dust samples from 26 fire stations in five states were collected from vacuum-cleaner bags and analyzed for PFRs and PBDEs. PFR concentrations were found to be on the same order of magnitude as PBDE concentrations (maximum PFR: 218,000 ng/g; maximum PBDE: 351,000 ng/g). Median concentrations of tri-n-butyl phosphate (TNBP), tris (2-chloroisopropyl) phosphate (TCIPP), and tris(1,3-dichloroisopropyl)phosphate (TDCIPP) in dust from fire stations were higher than those previously reported in homes and other occupational settings around the world. Total PFR levels did not vary significantly among states. Levels of TDCIPP were higher in stations where vacuum cleaners were used to clean surfaces other than the floor. PBDE levels were comparable to those found in our previous study of 20 California fire stations and much higher than levels in California residences. PFR and PBDE levels in fire station dust are higher than in other occupational and residential settings, underscoring the need to identify and control sources of this contamination.

消防员在发生火灾时要接触化学物质，我们以前曾证明消防站的粉尘中含有高含量的多溴联苯醚（PBDEs）。在进行消防局粉尘研究时，我们试图进一步表征消防员可能接触的化学物质–首次测量消防局中新兴的含磷阻燃剂（PFR）以及多溴二苯醚。从真空吸尘器袋中收集了来自五个州的26个消防局的粉尘样本，并分析了PFR和PBDE。发现PFR浓度与PBDE浓度处于同一数量级（最大PFR：218,000 ng / g；最大PBDE：351,000 ng / g）。磷酸三正丁酯（TNBP），磷酸三（2-氯异丙基）酯（TCIPP）和tris（1，消防局扬尘中的3-二氯异丙基）磷酸盐（TDCIPP）高于以前在世界各地的家庭和其他职业环境中所报告的浓度。各州之间的总PFR水平没有显着差异。在使用吸尘器清洁地面以外的地面的站点中，TDCIPP的水平较高。PBDE的水平与我们先前对20个加利福尼亚消防局的研究中发现的水平相当，远高于加利福尼亚住宅的水平。消防局粉尘中的PFR和PBDE含量高于其他职业和住宅环境，从而强调了识别和控制这种污染源的必要性。在使用吸尘器清洁地面以外的地面的站点中，TDCIPP的水平较高。PBDE的水平与我们先前对20个加利福尼亚消防局的研究中发现的水平相当，远高于加利福尼亚住宅的水平。消防局粉尘中的PFR和PBDE含量高于其他职业和住宅环境，从而强调了识别和控制这种污染源的必要性。在使用吸尘器清洁地面以外的地面的站点中，TDCIPP的水平较高。PBDE的水平与我们先前对20个加利福尼亚消防局的研究中发现的水平相当，远高于加利福尼亚住宅的水平。消防局粉尘中的PFR和PBDE含量高于其他职业和住宅环境，从而强调了识别和控制这种污染源的必要性。