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العنوان
Toxicities Of Some Pesticides To The Fresh Water Fish Clarias Lazera /
المؤلف
El Toweissy, Mona Youssef.
هيئة الاعداد
باحث / منى يوسف الطويسى
مشرف / نعمه الدمياطى
مشرف / صلاح سليمان
مشرف / احلام دعبس
الموضوع
Toxicities. Pesticides. Fish.
تاريخ النشر
1990.
عدد الصفحات
237 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الكيمياء
تاريخ الإجازة
1/1/1990
مكان الإجازة
جامعة الاسكندريه - كلية العلوم - Chemistry
الفهرس
Only 14 pages are availabe for public view

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from 237

Abstract

Pest control chemicals are poisons, they may present immediate danger to the user if applied improperly or without sufficient knowledge of their toxic effects. Some are highly toxic and may cause serious illness and even death if spilled on the skin, inhaled, or otherwise used carelessly. In addition, potential future hazards to human health and wildlife can be created by residues from some long-lived pesticides that may build up in the food chain and cause widespread contamination of the environment. Pesticides are of great benefit to man. They have saved millions of lives through con- trol of disease-carrying insects. They have minimized catastrophic crop damage by insects, weeds, plant diseases, rodents, and other pests, preserved valuable forests and parklands from insect destruction and protec- ted households against damaging beetles, moths and other bugs. Generally they have provided a higher quality of life for man We cannot afford to lose the advantages gained through pesticides, but neither can we ignore their potential danger. Obviously, we must derive the maximum benefits by safe pesticide use, At the same.