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首页> 外文期刊>Environmental Science & Technology >Identification of the Halogenated Compounds Resulting from the 1997 Plastimet Inc. Fire in Hamilton, Ontario, using Comprehensive Two-Dimensional Gas Chromatography and (Ultra)High Resolution Mass Spectrometry
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Identification of the Halogenated Compounds Resulting from the 1997 Plastimet Inc. Fire in Hamilton, Ontario, using Comprehensive Two-Dimensional Gas Chromatography and (Ultra)High Resolution Mass Spectrometry

机译：使用全面二维气相色谱和（超）高分辨率质谱法鉴定1997年Plastimet Inc.在安大略省汉密尔顿市大火中产生的卤化物

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摘要

Between July 9-12,1997, at least 400 tonnes of polyvinyl chloride (PVC) were consumed in a fire at the Plastimet Inc. plastics recycling facility in Hamilton, Ontario, Canada. This led to the release of contaminants, including highly toxic polychlorinated dibenzo-p-dioxin$ (PCDD) and dibenzofurans (PCDF). This study re-examines a composite soil sample collected shortly after the fire using state-of-the-art FT-ICR (Fourier transform ion cyclotron resonance) and GC X GC-TOF (comprehensive two-dimensional gas chromatog-raphy-rJme-of-flight) mass spectrometry. The FT-ICR experiments led to the identification of approximately 150 molecular formulas, corresponding to chlorinated and mixed chloro/ bromo compounds. The majority of these are halogenated polycydic aromatic hydrocarbons (halo-PAHs), including highly substituted (e.g., C_(14)HCl_9 and C_(16)HCl_9) and high molecular weight (e.g., C_(28)H_(12)Cl_4) Cl-PAHs that have not been reported previously in environmental samples. Complementary GC X GC-TOF experiments resolved individual halo-PAHs, some of which were confirmed with available standards. The concentrations of the most abundant halo-PAH groups, C_(14)H_8Cl_2 (22 μg/g) and C_(16)H_8Cl_2 (20 μg/g) are much higher than reported dioxin values and comparable to the corresponding PAH groups C_(14)H_(10) (12 μg/g) and C_(16)H_(10) (19 μg/g). The high abundance of the halo-PAHs identified in this study highlights the need for farther investigation into their environmental occurrence and risk.
机译：在1997年7月9日至12日之间，加拿大安大略省汉密尔顿的Plastimet Inc.塑料回收设施在一场大火中消耗了至少400吨聚氯乙烯（PVC）。这导致了污染物的释放，包括高毒性的多氯二苯并对二恶英（PCDD）和二苯并呋喃（PCDF）。这项研究使用最先进的FT-ICR（傅立叶变换离子回旋共振）和GC X GC-TOF（全面的二维气相色谱-rphy-rJme-飞行）质谱分析。 FT-ICR实验导致鉴定出大约150个分子式，对应于氯化和混合的氯/溴化合物。其中大多数是卤化多环芳烃（halo-PAHs），包括高度取代的（例如C_（14）HCl_9和C_（16）HCl_9）和高分子量（例如C_（28）H_（12）Cl_4）以前在环境样品中未曾报道过的Cl-PAHs。互补的GC X GC-TOF实验解析了单个的卤代PAH，其中一些已通过现有标准确认。最丰富的卤代PAH基团C_（14）H_8Cl_2（22μg/ g）和C_（16）H_8Cl_2（20μg/ g）的浓度远高于报道的二恶英值，可与相应的PAH基团C_（ 14）H_（10）（12μg/ g）和C_（16）H_（10）（19μg/ g）。在这项研究中，大量的卤代PAHs突出表明有必要对它们的环境发生和风险进行进一步调查。

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  • 来源
    《Environmental Science & Technology》 |2014年第18期|10656-10663|共8页
  • 作者

    Sujan Fernando; Karl J. Jobst; Vince Y. Taguchi; Paul A. Helm; Eric J. Reiner; Brian E. McCarry;

  • 作者单位

    Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada;

    Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada,Laboratory Services Branch, Ontario Ministry of the Environment and Climate Change, 125 Resources Road, Toronto, Ontario M9P 3 V6, Canada;

    Laboratory Services Branch, Ontario Ministry of the Environment and Climate Change, 125 Resources Road, Toronto, Ontario M9P 3 V6, Canada;

    Laboratory Services Branch, Ontario Ministry of the Environment and Climate Change, 125 Resources Road, Toronto, Ontario M9P 3 V6, Canada;

    Laboratory Services Branch, Ontario Ministry of the Environment and Climate Change, 125 Resources Road, Toronto, Ontario M9P 3 V6, Canada,Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada;

    Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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