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首页> 外文期刊>Environmental Science & Technology >Polycyclic Musks in the Air and Water of the Lower Great Lakes: Spatial Distribution and Volatilization from Surface Waters
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Polycyclic Musks in the Air and Water of the Lower Great Lakes: Spatial Distribution and Volatilization from Surface Waters

机译：大湖下游空气和水中的多环麝香：地表水的空间分布和挥发

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摘要

Polycyclic musks (PCMs) are synthetic fragrance compounds used in personal care products and household cleaners. Previous studies have indicated that PCMs are introduced to aquatic environments via wastewater and river discharge. Polyethylene passive samplers (PEs) were deployed in air and water during winter 2011 and summer 2012 to investigate the role of population centers as sources of these contaminants to the Great Lakes and determine whether the lakes were acting as sources of PCMs via volatilization. Average gaseous ∑_5PCM ranged from below detection limits (＜DL) to 3.2 ng/m~3 on the western shoreline of Lake Erie in Toledo. Average dissolved ∑_5PCM ranged from ＜DL to 2.6 ng/L on the southern shore of Lake Ontario near the mouth of the Oswego River. Significant correlations were observed between population density and ∑_5PCM in both air and water, with strongest correlations within a 25 and 40 km radius, respectively. At sites where HHCB was detected it was generally volatilizing, while the direction of AHTN air-water exchange was variable. Volatilization fluxes of HHCB ranged from 11 ± 6 to 341 ± 127 ng/m~2/day, while air-water exchange fluxes of AHTN ranged from -3 ± 2 to 28 ± 10 ng/m~2/day. Extrapolation of average air-water exchange flux values over the surface area of the lakes' coastal boundary zone suggested volatilization may be responsible for the loss of 64-213 kg/year of dissolved ∑_5PCM from the lakes.
机译：多环麝香（PCM）是用于个人护理产品和家用清洁剂的合成香料化合物。先前的研究表明，PCM通过废水和河流排放引入水生环境。在2011年冬季和2012年夏季，在空气和水中部署了聚乙烯无源采样器（PE），以调查人口中心作为五大湖污染物来源的作用，并确定这些湖是否通过挥发而成为PCM的来源。在托莱多伊利湖西岸，平均气态∑_5PCM范围从低于检出限（＜DL）到3.2 ng / m〜3。在奥斯威戈河口附近的安大略湖南岸，平均溶解∑_5PCM范围在＜DL至2.6 ng / L。空气和水中的人口密度与∑_5PCM之间存在显着的相关性，分别在25 km和40 km半径内具有最强的相关性。在检测到HHCB的地点，它通常在挥发，而AHTN空气-水交换的方向是可变的。 HHCB的挥发通量范围为11±6至341±127 ng / m〜2 /天，而AHTN的空气-水交换通量范围为-3±2至28±10 ng / m〜2 /天。根据湖泊沿海边界区域表面积的平均空气-水交换通量值的推断，挥发可能是造成湖泊中溶解的∑_5PCM损失64-213 kg /年的原因。

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  • 来源
    《Environmental Science & Technology》 |2016年第21期|11575-11583|共9页
  • 作者

    Carrie A. McDonough; Paul A. Helm; Derek Muir; Gavino Puggioni; Rainer Lohmann;

  • 作者单位

    Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, Rhode Island 02882, United States;

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

    Aquatic Contaminants Research Division, Environment Canada, 867 Lakeshore Road, Burlington, Ontario L7S 1A1 Canada;

    University of Rhode Island, 45 Upper College Road, Kingston, Rhode Island 02881, United States;

    Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, Rhode Island 02882, United States;

  • 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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