大辽河流域土壤中微塑料的丰度与分布研究

韩丽花, 李巧玲, 徐笠, 陆安祥, 李冰茹, 巩文雯, 田佳宇. 大辽河流域土壤中微塑料的丰度与分布研究[J]. 生态毒理学报, 2020, 15(1): 174-185. doi: 10.7524/AJE.1673-5897.20190911003
引用本文: 韩丽花, 李巧玲, 徐笠, 陆安祥, 李冰茹, 巩文雯, 田佳宇. 大辽河流域土壤中微塑料的丰度与分布研究[J]. 生态毒理学报, 2020, 15(1): 174-185. doi: 10.7524/AJE.1673-5897.20190911003
Han Lihua, Li Qiaoling, Xu Li, Lu Anxiang, Li Bingru, Gong Wenwen, Tian Jiayu. Abundance and Distribution of Microplastics of Soils in Daliao River Basin[J]. Asian Journal of Ecotoxicology, 2020, 15(1): 174-185. doi: 10.7524/AJE.1673-5897.20190911003
Citation: Han Lihua, Li Qiaoling, Xu Li, Lu Anxiang, Li Bingru, Gong Wenwen, Tian Jiayu. Abundance and Distribution of Microplastics of Soils in Daliao River Basin[J]. Asian Journal of Ecotoxicology, 2020, 15(1): 174-185. doi: 10.7524/AJE.1673-5897.20190911003

大辽河流域土壤中微塑料的丰度与分布研究

    作者简介: 韩丽花(1993-),女,硕士研究生,研究方向为微塑料的污染分布,E-mail:lihuaHanzbdx@163.com
  • 基金项目:

    北京市优秀人才青年骨干项目;北京市农林科学院创新能力建设(KJCX20180406,KJCX20190405);辽河流域水环境管理与水污染治理技术推广应用项目(2018ZX07601003)

  • 中图分类号: X171.5

Abundance and Distribution of Microplastics of Soils in Daliao River Basin

  • Fund Project:
  • 摘要: 微塑料在海洋生态系统中的分布特征已有不少研究,但人类活动强度较大的流域土壤中微塑料的污染研究仍存在较大空白。以大辽河流域为研究对象,采集附近8个土壤样品,采用密度浮选法,结合体视显微镜及显微红外光谱(μ-FTIR),进行了大辽河流域土壤中微塑料的组成及分布特征研究。结果表明,土壤中微塑料颜色以白、蓝和绿色为主(88.03%),形状以碎片、薄膜和泡沫为主(总占比为96.32%),土壤中粒径为500~1 000 μm的微塑料最多(41.10%),其次依次为1 000~2 000 μm(26.38%)、100~500 μm(19.33%)和2 000~5 000 μm(11.66%)。粒径为0~100 μm的微塑料和>5 000 μm的塑料碎片所占比例最小(均小于1.00%)。薄膜类和碎片类微塑料的主要成分分别是聚乙烯(PE)和聚丙烯(PP),颗粒类和泡沫类的主要成分是聚苯乙烯(PS),纤维类微塑料的主要成分是聚酰胺(PA)。土壤中微塑料平均丰度为(273.33 327.65) 个 kg-1。总体上,该研究区域土壤中微塑料的污染程度处于中等偏低水平。
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  • 收稿日期:  2019-09-11

大辽河流域土壤中微塑料的丰度与分布研究

    作者简介: 韩丽花(1993-),女,硕士研究生,研究方向为微塑料的污染分布,E-mail:lihuaHanzbdx@163.com
  • 1. 中北大学理学院, 太原 030051;
  • 2. 北京市农林科学院, 北京农业质量标准与检测技术研究中心, 北京 100097;
  • 3. 农产品产地环境监测北京市重点实验室, 北京 100097
基金项目:

北京市优秀人才青年骨干项目;北京市农林科学院创新能力建设(KJCX20180406,KJCX20190405);辽河流域水环境管理与水污染治理技术推广应用项目(2018ZX07601003)

摘要: 微塑料在海洋生态系统中的分布特征已有不少研究,但人类活动强度较大的流域土壤中微塑料的污染研究仍存在较大空白。以大辽河流域为研究对象,采集附近8个土壤样品,采用密度浮选法,结合体视显微镜及显微红外光谱(μ-FTIR),进行了大辽河流域土壤中微塑料的组成及分布特征研究。结果表明,土壤中微塑料颜色以白、蓝和绿色为主(88.03%),形状以碎片、薄膜和泡沫为主(总占比为96.32%),土壤中粒径为500~1 000 μm的微塑料最多(41.10%),其次依次为1 000~2 000 μm(26.38%)、100~500 μm(19.33%)和2 000~5 000 μm(11.66%)。粒径为0~100 μm的微塑料和>5 000 μm的塑料碎片所占比例最小(均小于1.00%)。薄膜类和碎片类微塑料的主要成分分别是聚乙烯(PE)和聚丙烯(PP),颗粒类和泡沫类的主要成分是聚苯乙烯(PS),纤维类微塑料的主要成分是聚酰胺(PA)。土壤中微塑料平均丰度为(273.33 327.65) 个 kg-1。总体上,该研究区域土壤中微塑料的污染程度处于中等偏低水平。

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