biological magnification pesticide

Due to bioaccumulative characters, these pollutants pass through the food chain and food web. While passing through the organisms, the concentration of pollutants gets increased. This is called bio magnifications. For e.g., 0.5 ppm DDT in grasses gets magnified to 2ppm in sheep. It may b..

Pesticides are a class of synthetic chemicals used to control the pests of crops. Pests can be an insect, disease or weed or sometimes non - insect pest like rats. Various chemicals used to control the pests can cause large scale pollution - as less than 5% of applied pesticide ..

Biological Magnification - Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they accumulate ..

Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they accumulate in the tissues, and as the living organis..

It is a concept wherein pesticides are not subjected to disintegration and excretion from animal/human bod..

Biopesticides - Biopesticides are the pesticides of biological origin or the biological control agents, which are used to control the weeds and pests; they are of 2 types bio herbicides and bio insecticid..

Includes disturbance of surface soil in terms of its structure, chemical properties and biological activities due to agricultural activities such as cultivation of crops, irrigation, application of fertilizers and pesticides..

As a preventive measure godowns should be treated with insecticides and pesticides. Gunny bags should also be sprayed. Grains that have to be used for seed purpose must be mixed with fungicide and insecticid..

They are also dangerous pesticides with ability to kill many useful bacteria besides killing the pests. They act as a source of pollution of agricultural land and ground water. Examples: Phorate, methyl parathi..

The following measures should be adopted to control soil pollution: Suitable and safe disposal of wastes including nuclear wastes. Non-biodegradable materials like plastic, glass, metals, etc. should be recovered and recycled. Inorganic pesticides should be replaced by organic ..