Semiquantitative Characterization of Bromo-chloro Paraffins and Olefins in the Australian Environment

• DOI: 10.1021/acs.est.2c03576
• Publication Date: 2022-08-17T17:52:38Z
• Authors: Chang He; Louise van Mourik; Sicco Brandsma; Phong Thai; Xianyu Wang; Shuo Chen; Kevin V. Thomas; Jochen F. Mueller
• Keywords: Congener; Chlorinated paraffins

A semiquantitative high-resolution mass spectrometry method was developed and applied to assess the occurrence of bromo-/chloro paraffins (BCPs) olefins (BCOs) in environment. More than 400 possible BCPs BCO congener groups were detected dust, air, sewage sludge samples collected from Australia. Median chain analytes with number halogen atoms <7 (CnHmClxBry, 14 ≤ n 17, x + y < 7) prevailed dust samples, while short 10 13, predominated air samples. The estimated concentrations ∑BCPs ∑BCOs approximately 20% that chlorinated (CPs) present, median 5.4 μg/g (dust) 0.18 (sludge) for 22 (in dust) 0.50 BCOs. In (0.020 pg/m3) BCOs (0.032 3–4 orders magnitudes lower CPs (790 pg/m3). Significant correlations (P 0.001) found between concentration CPs, BCPs, all matrices.