biological magnification pesticide water bodies

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 ..

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 org..

Commercial manufacture and use of synthetic insecticides in the last six decades has led to many problems such as Air pollution during manufacturing stages. Bhopal gas disaster is a worst example for air pollution. Accidental ingestion of insecticides during handling and application leading t..

Modern methods of agriculture have resulted in use of fertilisers and pesticides to increase the yield of the crops. Most of them are synthetic and chemicals-based. They are collectively called agro-chemicals. These chemicals enter into the water bodies with the rain ..

. Vehicular trffic releasing carbon monoxide, sulphur dioxide, nitrogen dioxide has caused large scale air pollution in cities. Pollution of air is the major cause human health problems such as respiratory problems, lung / throat, cancer etc. Pollution of water is also the main cause of h..

Increased incidence of tumours, ulcers due to nitrate pollution. Increased incidence of skin disorders due to contact with pollutants. Increased incidence of constipation, diarrhea and infections to intestine. Dangerous effects on growing foetus in pregnant women. Concentration of pol..

>All these issues are very important considerations before it is concluded that a particular type of pollution is dangerous or not in a particular situation. They are also relevant, because working against even the minutestform of negligible pollution may be undesirable, costly and unimportant. In ..

Oil spill is a major problem in the oceans and seas. The oil tankers and offshore petroleum refineries cause oil leakage into the waters. This pollutes the waters. Oil floats on the water surface and prevents the atmospheric oxygen from mixing in the water. ..

Water is an important part of our diet. It constitutes 70% of the body weight. The quantity of water required by the body depends upon the age, type of work and climate. A lot of water comes from the food we eat. Eg. Fruits, vegetables. However most..

Water is the most abundant compound in the vast majority of cells. It forms about 60 to 90% of the total chemical content of the cell. Water accounts for about 65% of the chemical composition in the human body. In a jellyfish, the water content in the ..