墨西哥巴德雷拉湾海洋塑料碎片丰度的季节性变化。
Seasonal variation in the abundance of marine plastic debris in Banderas Bay, Mexico.
机构信息
Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Av. IPN s/n, Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico; Pelagios Kakunjá A.C., Sinaloa 1540, Las Garzas, 23070 La Paz, Baja California Sur, Mexico.
Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Av. IPN s/n, Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico; Instituto Tecnológico de Bahía de Banderas, Crucero a Punta de Mita S/N, Bahía de Banderas 63734, Nayarit, Mexico.
出版信息
Mar Pollut Bull. 2019 Aug;145:604-610. doi: 10.1016/j.marpolbul.2019.06.062. Epub 2019 Jul 2.
A floating plastic monitoring program was conducted for two years on a weekly basis in Banderas Bay, Mexico. A total of 94 samples were collected from May 2016 to April 2018 in the southern part of the bay. Half (57%) of them contained plastic debris; 79% of it being <5 mm in length. Polypropylene and Polyethylene were the most abundant polymers, accounting for 45% and 43% of the plastic pieces (pp), respectively. The highest abundance of plastic pieces was found in July 2016, with a maximum of 0.3 pp/m found in one sample. The amount of floating plastics was significantly higher in the hurricane season compared to the dry season (p < 0.001). This suggests that rainfall may play a significant role in the offload of plastics from land-based sources into the bay.
在墨西哥巴德拉纳斯湾进行了为期两年的漂浮塑料监测计划，每周进行一次。2016 年 5 月至 2018 年 4 月在该湾南部共采集了 94 个样本。其中有一半（57%）含有塑料碎片；79%的长度小于 5 毫米。聚丙烯和聚乙烯是最丰富的聚合物，分别占塑料碎片（PP）的 45%和 43%。2016 年 7 月发现的塑料碎片数量最多，在一个样本中发现了最高 0.3 个/立方米。与旱季相比，飓风季节的漂浮塑料数量明显更高（p<0.001）。这表明降雨可能在从陆源向海湾卸载塑料方面发挥了重要作用。
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