about environmental chemistry

The sources of oxides of nitrogen are mainly emissions from chemical and metal fabrication plants, agricultural fertilizers, automobile emissions, electric power plants and explosion of thermonuclear weapons in the atmosphere. NO molecule also catalytically converts O 3 to O 2 like Cl and Br ato..

Vapours of any acid introduced into the atmosphere causes acid mist. 'Sulphuric acid mist' is produced when SO 3 present in the atmosphere, comes in contact with moisture. Sulfur trioxide (SO 3 ) is produced by complete combustion and forms sulfuric acid by the mechanism below:..

> to form chlorine monoxide (ClO), which further combines with O to give oxyge..

. This warms the Earth's surface and increases its temperature. It starts emitting infra-red radiations of longer wavelengths. The partially radiated infra-red radiations from the Earth are absorbed by CO 2 and green house gases. This restricts the outward flow of infrared radiation and effectively..

Simply stated, Green chemistry is the use of chemistry for preventing environment pollution in order to protect human health. It may give the impression that it is branch of chemistry involving plants, which is not true. Green chemistry may be defined as the ..

RCO 3 Free radicals Peroxyacyl free radicals (PAN) The peroxy free radicals react with hydrocarbons, O 2 and NO 2 present in the atmospher..

A report by scientists at the United Nations Environment Program (UNEP) said the Asian Brown haze is a three kilometer deep blanket of pollution in the sky, which stretches across South Asia, and has been caused by the spectacular economic development experienced by this part of the world. The haz..

Adsorption from Solutions - Adsorption of solutes from solutions also takes place on solids. Process of adsorption is used to reduce colors from solution. For e.g., raw sugar solution is decolorised by charcoal. Chromatographic separation of a mixture of compounds in solution happens due to the dif..

The term environment refers to the natural elements that make up the Earth and surround living organisms, enabling life. The study of the environment and its proper conservation, has gained enormous importance in last three decades. The term environmental pollution has become one of..

We know that air is one of the most essential requirements for all the living organisms. It is therefore imperative that we try and keep the air pure. Technological and industrial progress has vastly affected the quality of air that we breathe in. Because of the dense population and the prese..