Sheikhi Hossein, Mirzaei Rouhollah
Department of Environment, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Isfahan, Iran.
Department of Environment, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Isfahan, Iran.
Mar Pollut Bull. 2023 Sep;194(Pt A):115261. doi: 10.1016/j.marpolbul.2023.115261. Epub 2023 Jul 11.
One of the most critical emerging pollutants in aquatic environments is plastic waste. During this study, the presence and abundance of macro, meso, and microplastics at 17 stations on the coast of Bushehr province were investigated. The average abundances of macro-plastics and meso-plastics in coastal sediment were 41.0 and 121.8 items/m, respectively. The mean abundance of microplastics at depths of 0-5 cm, 5-15 cm, 0-15 cm and the mean of two depth abundance were 226.2 ± 76.7 and 47.1 ± 16.1, 273.4 ± 78.8, and 136.7 ± 39.4 particles/kgd.w., respectively. Fibers with 55 %, black microplastics with 40 %, and microplastic size of <500 μm with 48 % had the highest abundance, respectively. According to the FTIR spectra, polyethylene, polystyrene, polyethylene terephthalate, and nylon were the most common types of polymers in plastics. Although plastics were observed at all stations, a comparison of our results, with other studies around the world shows that the region is moderately contaminated with plastics.
塑料垃圾是水生环境中最关键的新兴污染物之一。在本研究中，对布什尔省海岸17个站点的大、中、微塑料的存在情况和丰度进行了调查。沿海沉积物中宏观塑料和中观塑料的平均丰度分别为41.0件/米和121.8件/米。0 - 5厘米、5 - 15厘米、0 - 15厘米深度处微塑料的平均丰度以及两个深度丰度的平均值分别为226.2±76.7、47.1±16.1、273.4±78.8和136.7±39.4颗粒/千克干重。纤维占比55%、黑色微塑料占比40%、尺寸小于500微米的微塑料占比48%，其丰度分别最高。根据傅里叶变换红外光谱，聚乙烯、聚苯乙烯、聚对苯二甲酸乙二酯和尼龙是塑料中最常见的聚合物类型。尽管在所有站点都观察到了塑料，但将我们的结果与世界其他研究进行比较表明，该地区受到塑料的污染程度为中等。
