logo BDSP

Base documentaire


Votre avis nous intéresse

Le réseau BDSP met en oeuvre un projet d'innovation et d'amélioration de ses services, dans le souci constant de proposer des contenus de qualité adaptés aux besoins des utilisateurs.

Identifier de nouvelles sources de financements est la condition nécessaire pour assurer la poursuite et la pérennité de cet outil unique qu'est la BDSP, tout en le faisant évoluer.

Pour définir un nouveau modèle économique, nous avons besoin de votre avis : merci de répondre à notre enquête (temps estimé : 5 minutes).

Participer maintenant
Participer plus tard J'ai déjà participé

  1. Organochlorine insecticide residues in surface and underground water from different regions of Bangladesh.

    Article - En anglais

    The use of organochlorine insecticides (except heptachlor) for all agricultural and public health purposes was banned in Bangladesh by late 1993, although stocks could be used after that time and emergency use of limited quantities of DDT for plague control was permitted in 1994.

    Water samples from the different regions of Bangladesh were studied for organochlorine insecticide residues (OCs) during 1992-1995, both before and after the banning of the use of OCs.

    Packed column gas chromatographic (Electron Capture Detector mode) techniques were used and recovery was checked by monitoring the extraction of radio-labelled compounds with a Liquid Scintillation Counter.

    The results indicate slight contamination of some of the water samples of both surface and underground sources with residues of DDT, heptachlor, lindane and dieldrin.

    The majority of the samples, were found to be free from residues.

    Although use of heptachlor is allowed for specific purposes, its presence in surface water and ground water at levels well above WHO-recommended limits is a matter of concern.

    Appropriate remedial measures and systematic surveillance of heptachlor and other OC residues in water resources of the country are necessary to check further aggravation of the situation.

    Mots-clés Pascal : Résidu traitement, Eau surface, Eau profonde, Contamination, Toxicité, Qualité eau, Pollution eau, DDT, Lindane, Dieldrine, Heptachlor, Bengla Desh, Asie, Organochloré, Insecticide, Cyclène, Cyclodiène dérivé

    Mots-clés Pascal anglais : Tailings, Surface water, Deep water, Contamination, Toxicity, Water quality, Water pollution, DDT, Lindane, Dieldrin, Heptachlor, Bangladesh, Asia, Organochlorine compounds, Insecticide, Cycloalkene, Cyclodiene derivatives

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0305196

    Code Inist : 002B03G. Création : 27/11/1998.