The Persian Gulf Marine Biotechnology Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran.
Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran.
Tob Control. 2017 Jul;26(4):461-463. doi: 10.1136/tobaccocontrol-2016-052931. Epub 2016 Jul 6.
Cigarette butts are the most common form of litter in the marine environment and represent potential point sources for environmental contamination. The metals leached from cigarette butts have not been studied well in the marine environment. In this study, the levels of metals (Cd, Fe, As, Ni, Cu, Zn and Mn) in cigarette butts were monitored at nine stations along the northern part of the Persian Gulf in Bushehr coastal areas in summer 2015 with a sampling time interval of 10 days. The Cd, Fe, As, Ni, Cu, Zn and Mn contents of cigarette butts were found to vary widely between 0.16 and 0.67 μg/g, 79.01 and 244.97 μg/g, 0.12 and 0.48 μg/g, 1.13 and 3.27 μg/g, 4.29 and 12.29 μg/g, 6.39 and 21.17 μg/g, and 38.29 and 123.1 μg/g, respectively. A Wilcoxon signed rank test showed that there were no significant differences between the Cd, Fe, As, Ni, Cu, Zn and Mn contents of cigarette butts at different sampling times. Considering the estimated number of cigarette butts littered annually, the results of this study indicated that considerable metals including Cd, Fe, As, Ni, Cu, Zn and Mn may enter the marine environment each year from cigarette litter alone.
烟蒂是海洋环境中最常见的垃圾形式，代表了环境污染的潜在点状污染源。从烟蒂中浸出的金属在海洋环境中尚未得到很好的研究。本研究于 2015 年夏季，以 10 天为一个采样时间间隔，在布什尔沿海地区波斯湾北部的 9 个站点监测了烟蒂中的金属（Cd、Fe、As、Ni、Cu、Zn 和 Mn）水平。结果发现，烟蒂中的 Cd、Fe、As、Ni、Cu、Zn 和 Mn 的含量在 0.16 到 0.67μg/g 之间变化很大，在 79.01 到 244.97μg/g 之间变化很大，在 0.12 到 0.48μg/g 之间变化很大，在 1.13 到 3.27μg/g 之间变化很大，在 4.29 到 12.29μg/g 之间变化很大，在 6.39 到 21.17μg/g 之间变化很大，在 38.29 到 123.1μg/g 之间变化很大。Wilcoxon 符号秩检验表明，在不同的采样时间，烟蒂中 Cd、Fe、As、Ni、Cu、Zn 和 Mn 的含量没有显著差异。考虑到每年丢弃的烟蒂数量估计，本研究结果表明，仅从烟蒂垃圾每年就可能有相当数量的包括 Cd、Fe、As、Ni、Cu、Zn 和 Mn 的金属进入海洋环境。
