Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, pavilion A29, 625 00 Brno, Czech Republic.
School of Public and Environmental Affairs, Indiana University, 702 N. Walnut Grove Ave., Bloomington, 47405 Indiana, USA.
Environ Int. 2017 Sep;106:97-104. doi: 10.1016/j.envint.2017.05.020.
Concentrations of 13 organophosphate ester flame retardants (OPEs) were measured in air, dust and window wipes from 63 homes in Canada, the Czech Republic and the United States in the spring and summer of 2013 to look for abundances, differences among regions, and partitioning behavior. In general, we observed the highest concentrations for halogenated OPEs, particularly TCEP, TCIPP and TDCIPP, and also non-halogenated TPHP. Differences between regions strongly depended on the matrix. The concentrations of OPEs in dust were significantly higher in the US than in Canada (CAN) and Czech Republic (CZ). CZ had the highest concentrations in window film and CAN in air. ΣOPE concentrations were 2-3 and 1-2 orders of magnitude greater than ΣBFRs in air, and dust and window films, respectively. We found a significant relationship between the concentrations in dust and air, and between the concentrations in window film and air for OPEs with log K values <12, suggesting that equilibrium was reached for these compounds but not for those with log K>12. This hypothesis was confirmed by a large discrepancy between values predicted using a partitioning model and the measured values for OPEs with log K values >12.
2013 年春夏季，在加拿大、捷克共和国和美国的 63 户家庭中，测量了空气中、灰尘中和窗拭子中的 13 种有机磷酸酯阻燃剂（OPEs）的浓度，以寻找丰度、地区差异和分配行为。总的来说，我们观察到卤代 OPEs，尤其是 TCEP、TCIPP 和 TDCIPP，以及非卤代 TPHP 的浓度最高。地区差异强烈依赖于基质。灰尘中的 OPEs 浓度在美国明显高于加拿大（CAN）和捷克共和国（CZ）。CZ 在窗膜中的浓度最高，CAN 在空气中的浓度最高。ΣOPE 浓度在空气中、灰尘和窗膜中的浓度分别比 ΣBFR 高 2-3 和 1-2 个数量级。我们发现 OPEs 在灰尘和空气中的浓度之间以及在窗膜和空气中的浓度之间存在显著关系，对于 log K 值<12 的化合物，表明达到了平衡，但对于 log K>12 的化合物则没有达到平衡。对于 log K 值>12 的 OPEs，分配模型预测值与实测值之间存在很大差异，这一假设得到了证实。
