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article · Desalination and Water Treatment

Persistent pesticides: Accumulation, health risk assessment, management and remediation: An overview

202436 citationsOpen accessAlexandria University

In plain language

Large-scale agricultural use of pesticides continues to create major global environmental challenges. Among these, organochlorine compounds such as DDT, aldrin, and dieldrin pose prolonged risks due to their chemical stability and persistence. Residues from organochlorines accumulate widely across soil, water, air, sediments, foodstuffs, and human blood serum. Through entry into food chains and food webs, these chemical agents move across trophic levels and contaminate natural ecosystems. Exposure to such persistent insecticides triggers extensive physiological harms, including damage to pulmonary, circulatory, hormonal, endocrine, neuronal, and reproductive functions. Effectively addressing these hazards requires examining the environmental transport pathways of these substances alongside the policy structures and operational hurdles that govern modern pest management.

Key takeaways

  • Organochlorine pesticides such as DDT, aldrin, and dieldrin persist in ecosystems due to high chemical stability.
  • Pesticide residues accumulate across air, water, soil, sediments, food supplies, and human blood serum.
  • Contaminants transfer across food chains, causing serious harm to pulmonary, circulatory, neurological, endocrine, and reproductive systems.
  • Mitigating pesticide pollution demands overcoming significant pest management and policy challenges.

Why it matters

Persistent pesticides do not break down easily, allowing toxic residues to accumulate in food supplies, water sources, and human bodies. By damaging vital systems including fertility and hormone regulation, these substances pose lasting threats to public health and wildlife. Examining how these chemicals move through ecosystems provides critical knowledge for shaping stronger environmental protections and safer pest management policies.

Commercialisation angle

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Abstract

Pesticides are being employed for large-scale agricultural purposes, leading to global environmental issues. Organochlorine pesticides (dieldrin, DDT, and aldrin) are persistent due to their stable nature. Organochlorine pesticide (OCPs) residues present in various foodstuffs, blood serum, air, water, soil and sediments have generated a global surge due to their severe health as well as environmental ill effects. It pollutes air, soil, water resources and gets transferred into the tropic level through food chains and food webs. Studies reveal that incecticides (pesticides) may harm pulmonary, fertility, circulatory, neuronal, hormonal and endocrine functions leading to severe health ailments. In the present article, the fate of persistent pesticides in different ecosystems has been reviewed. Challenges and policies of pest management have been critically discussed.

Research topics

  • Pesticide and Herbicide Environmental Studies
  • Pesticide Exposure and Toxicity
  • Insect and Pesticide Research

Sustainable Development Goals

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DOI: 10.1016/j.dwt.2024.100274

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