Scholarlink

<p>A large amount of plastic produced globally ends up in municipal solid waste (MSW). In many developing countries, this waste is often dumped without control in urban and rural areas, mixed with other contaminated materials. Over time, these plastics break down into microplastics (MPs), which can enter the environment through landfill leachate. This study aimed to identify and characterize MPs in leachate from three old MSW dumpsites located in Khuzestan Province, southwest Iran. It also evaluated the ecological risk using the Polymer Hazard Index (PHI) and Pollution Load Index (PLI). The average concentrations of MPs at the dumpsites were 205, 111, and 157 items per liter. More than 50% of the MPs were smaller than 150 µm, and fragmented shapes were the most common (68.33%). Polyamide (68%) and polypropylene (16%) were identified as the dominant polymers in samples. The PHI values indicated high ecological risk, and the PLI values showed high to extremely high pollution levels. These results underline the serious environmental threat posed by MPs in leachate and stress the need for better waste management, including engineered landfills and waste segregation systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Leachate from Non-Sanitary Waste Dumpsites as a Major Source of Microplastics: Identification, Characterization, and Ecological Risk Assessment

  • 期刊论文

  • 发表日期：

    2025年7月8日

查看全文
  • Neematollah Jaafarzadeh,
  • Kamran Tari,
  • Sahand Jorfi,
  • Amir Zahedi,
  • Masoud Panahi Fard

摘要

A large amount of plastic produced globally ends up in municipal solid waste (MSW). In many developing countries, this waste is often dumped without control in urban and rural areas, mixed with other contaminated materials. Over time, these plastics break down into microplastics (MPs), which can enter the environment through landfill leachate. This study aimed to identify and characterize MPs in leachate from three old MSW dumpsites located in Khuzestan Province, southwest Iran. It also evaluated the ecological risk using the Polymer Hazard Index (PHI) and Pollution Load Index (PLI). The average concentrations of MPs at the dumpsites were 205, 111, and 157 items per liter. More than 50% of the MPs were smaller than 150 µm, and fragmented shapes were the most common (68.33%). Polyamide (68%) and polypropylene (16%) were identified as the dominant polymers in samples. The PHI values indicated high ecological risk, and the PLI values showed high to extremely high pollution levels. These results underline the serious environmental threat posed by MPs in leachate and stress the need for better waste management, including engineered landfills and waste segregation systems.