香烟头：环境中多环芳烃的一个被忽视的来源？
Cigarette butts: An overlooked source of PAHs in the environment?
机构信息
Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran; The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran; Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran; Instrumental Analytical Chemistry and Centre for Water and Environmental Research (ZWU), Faculty of Chemistry, University of Duisburg-Essen, Universitätsstr. 5, Essen, Germany.
Instrumental Analytical Chemistry and Centre for Water and Environmental Research (ZWU), Faculty of Chemistry, University of Duisburg-Essen, Universitätsstr. 5, Essen, Germany.
出版信息
Environ Pollut. 2019 Jun;249:932-939. doi: 10.1016/j.envpol.2019.03.097. Epub 2019 Mar 25.
Cigarette butts (CBs) are the most common littered objects in the environment and may contain high amounts of polycylic aromatic hydrocarbons (PAHs) from incomplete tobacco leave burning. But to date there is no comprehensive study on environmental emissions of PAHs by CBs. So the main aim of this study was to compare the concentration levels of 16 PAHs in freshly smoked CBs and CBs from the environment (collected from urban streets and river areas) with different exposure times to the environment. The results showed that the mean concentration levels of 4 PAHs including naphthalene, acenaphthylene, acenaphthene, and fluorene were significantly higher in the freshly smoked CB samples compared to the street samples and were the lowest in the river samples. Considering the number of CBs annually littered, considerable amounts of these 4 PAHs may be released to the environment, which may be a threat to the quality of water resources.
烟头是环境中最常见的垃圾，可能含有来自不完全燃烧的烟草叶的高浓度多环芳烃（PAHs）。但迄今为止，还没有关于烟头向环境排放 PAHs 的综合研究。因此，本研究的主要目的是比较新鲜吸烟烟头和暴露于不同环境时间的环境烟头（从城市街道和河流地区收集）中 16 种 PAHs 的浓度水平。结果表明，与街道样本相比，新鲜吸烟烟头样本中萘、苊烯、苊和芴这 4 种 PAHs 的平均浓度明显更高，而在河流样本中则最低。考虑到每年丢弃的烟头数量，这些 4 种 PAHs 可能会大量释放到环境中，这可能对水资源质量构成威胁。
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