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来自卢瓦尔河口 (法国大西洋海岸) 的盆地区的有机酸盐添加剂和微塑料

J Castro-Jiménez¹, Y Aminot¹, N Bely¹

¹IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, F-44000 Nantes, France.

Marine pollution bulletin

|March 23, 2024

概括

有机酸盐 (OPEs) 和微塑料 (MPs) 在卢瓦尔河口沉积物和海Scrrobicularia plana.中同时存在. 虽然MP很丰富,但它们与OPE的相关性有限,这表明MP不是一个主要的现场OPE来源.

科学领域:

环境化学环境化学
海洋生物学海洋生物学
生态毒理学生态毒理学

背景情况:

有机酸 (OPE) 是广泛使用的阻燃剂和增塑剂.
微塑料 (MP) 是普遍存在的环境污染物.
地环境是OPE和MP的潜在沉没点.

研究的目的:

为了调查OPEs和MPs在卢瓦尔河口的盆地区的同时发生.
测量沉积物中的OPEs和MPs度以及Scrobicularia plana.贝中的数量.
评估MP作为OPE来源和OPE生物积累的潜在作用.

主要方法:

从卢瓦尔河口收集了沉积物和Scrobicularia plana的样本.
使用气体染色体质谱测量测量了13种三OPE和4种二OPE的度.
微塑料被提取并定量.
计算了生物沉积积积因子 (BSAFs).

主要成果:

在潮间沉积物中发现了MPs,13tri-OPEs和4di-OPEs的中位数度较高,特别是在细颗粒和高人为压力地区.
在夏季,Scrobicularia plana表现出较高的三OPE度.
聚乙烯是主要的MP类型. 三二甲基酸盐 (TEHP),其代谢物 (BEHP) 和三二一甲基酸盐 (TCIPP) 是最丰富的OPE.
BSAFs表明了化OPEs的生物积累潜力,夏季暴露率更高.
在沉积物中没有发现OPE和MP之间的显著相关性.

结论:

OPEs和MPs同时发生在卢瓦尔河口的盆地区.
在这种环境中,微塑料似乎不是一个重要的现场OPE来源.
化OPEs在Scrrobicularia plana中显示出生物积累的潜力,季节性变化.

关键词:

美国BSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAFBSAF 生物积累生物积累生物积累有机阻燃剂的阻燃剂.塑化剂塑化剂塑化剂斯克罗比库拉里亚的平面沉积物沉积物是一种沉积物.

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