相关实验视频

Updated: Jun 23, 2026

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Published on: December 16, 2016

宏观塑料和微塑料的浸出物:对种子发芽的特征和影响

Giovana P F Macan¹, Davi R Munhoz², Leo A J Willems³

¹Institute for Sustainable Agriculture, Spanish National Research Council (IAS-CSIC), 14004 Córdoba, Spain; Programa de Doctorado de Ingeniería Agraria, Alimentaria, Forestal y de Desarrollo Rural Sostenible, Universidad de Córdoba, Córdoba, Spain.

Journal of hazardous materials

|October 18, 2024

概括

可生物降解和常规的塑料布会释放有害于种子发芽的化学物质. 微塑料颗粒本身并不有毒,这凸显了需要规范农业塑料中的液化合物.

科学领域:

农业科学农业科学
环境科学环境科学
土壤科学土壤科学

背景情况:

塑料可以提高作物产量,但会带来处理挑战,导致土壤污染.
农业薄膜的宏观和微塑料污染影响土壤和植物健康.
从塑料中出的化学添加剂是潜在的毒性来源.

研究的目的:

评估不可降解的LDPE (LDPEb) 基和可生物降解的PBAT (PBATb) 基杂物和颗粒对种子发芽的影响.
为了比较不同类型的料中的液的毒性.
为了确定塑料颗粒本身是否会影响发芽.

主要方法:

用LDPEb和PBATb的杂物和颗粒化三个植物物种 (阿拉比多普西斯,棉花,西红).
七天的潜伏期,以观察发芽率.
浸出化合物的分析及其对发芽的影响.

主要成果:

PBAT杂草漏物显著抑制了阿拉比多普西斯的发芽;棉花和番茄表现出耐受性.
与LDPEb杂草相比,PBATb杂草释放的化合物度更高.
在LDPEb土壤中,有更多的化学化合物的多样性.
微塑料颗粒本身并没有影响种子发芽.

结论:

塑料覆盖物的毒性主要来自水的化合物,而不是颗粒本身.
来自可生物降解PBAT杂草的液对敏感植物物种构成重大风险.
许多液化合物缺乏监管,需要进一步研究和对农业塑料的监管框架.

关键词:

污染物污染物污染物环境毒理学环境毒理学植物卫生植物卫生塑料添加剂塑料添加剂塑料覆盖面是塑料覆盖面的有毒性有毒性

更多相关视频

Ecotoxicological Effects of Microplastics on Bird Embryo Development by Hatching without Eggshell

Ecotoxicological Effects of Microplastics on Bird Embryo Development by Hatching without Eggshell

Published on: August 14, 2021

Separation and Identification of Conventional Microplastics from Farmland Soils

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

相关概念视频

Microbial Leaching

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

Microbial Bioremediation of Plastics

Microbial Bioremediation of Plastics

Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...