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(ii) Carbon dioxide: Carbon dioxide is released into the atmosphere by respiration, burning of fossil fuels for energy, and by decomposition of limestone during the manufacture of cement.

weak eyesight, nervousness and cardiovascular disorder.

It binds to haemoglobin to form carbonhaemoglobin, which is about 300 times more stable than the 9 oxygen-haemoglobin complex.

Program De Conducere In Echipaj on this page. It is a colorless and odorless gas, highly poisonous to living beings because of its ability to block the delivery of oxygen to the organs and tissues. (d) Oxides of Carbon (i) Carbon monoxide: Carbon monoxide is one of the most serious air pollutants. They harm plants by causing ageing, breakdown of tissues and shedding of leaves, flowers and twigs. Hydrocarbons are carcinogenic, i.e., they cause cancer. (c) Hydrocarbons Hydrocarbons are composed of hydrogen and carbon only and are formed by incomplete combustion of fuel used in automobiles.When fossil fuel is burnt, dinitrogen and dioxygen combine to yield significant quantities of nitric oxide (NO) and nitrogen dioxide (NO2). These gases donвЂ™t react with each other at a normal temperature.ДЄt high altitudes when lightning strikes, they combine to form oxides of nitrogen.

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(b) Oxides of Nitrogen Dinitrogen and dioxygen are the main constituents of air.

However, the presence of particulate matter in polluted air catalysts the oxidation of sulphur dioxide to sulphur trioxide. It has been reported that even a low concentration of sulphur dioxide causes respiratory diseases. The most common species, sulphur dioxide, is a gas that is poisonous to both animals and plants.

1.Gaseous Air Pollutants (a) Oxides of Sulphur Oxides of sulphur are produced when sulphur containing fossil fuel is burnt.

2.Particulate pollutants: These are dust, mist, fumes, smoke, smog etc. The following are the major gaseous and particulate pollutants present in the troposphere: 1.Gaseous air pollutants: These are oxides of sulphide, hydrocarbons, ozone and other oxidants.

Tropospheric pollution occurs due to the presence of undesirable solid or gaseous particles in the air.

It is also known as вЂњAtmospheric PollutionвЂќ Atmospheric pollution is generally studied as Tropospheric and Statospheric pollution.

ATMOSPHRIC POLLUTION Air pollution is defined as the addition of undesirable materials into the atmosphere either due to natural phenomena or due to human activity on the earth which adversely affect the quality of the air and hence affects the life on the earth.

Pollutants can be solid, liquid or gaseous substances present in the greater concentration than in natural abundance and are produced due to human activities or due to natural happenings. Form 8-K shall be used for current reports under Section 13 or 15(d) of the Securities Exchange Act of.ДЄ substance, which causes pollution, is known as вЂњpollutantвЂќ.

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вЂњEnvironment pollutionвЂќ is the effect of undesirable changes in our surroundings that have harmful effects on the plants, animals and human beings.Дownload a k de environmental chemistry ebook ePub eBook.

вЂњENVIRONMENT CHEMISTRYвЂќ is a branch of science which deals with the chemical phenomena occurring in the environment, i.e., study of origin, transport, reactions, effects and fates of chemical species in the environment.

It comprises of the following four major components: (1) Atmosphere, (2) Hydrosphere, (3) Lithosphere and (4) Biosphere.

The term вЂњEnvironmentвЂќ literally means вЂњsurroundingвЂќ.

INDEX пЃ± INTRODUCTION пЃ± ENVIRONMENT POLLUTION пЃ± ATMOSPHERIC POLLUTION - TROPOSPHERIC POLLUTION - GLOBAL WARMING - ACID RAIN - SMOG - THE OZONE HOLE пЃ± WATER POLLUTION -INTERNATIONAL STANDARDS FOR DRINKING WATER пЃ± SOIL POLLUTION - WASTE DUMPING пЃ± STRATEGIES TO CONTROL ENVIRONMENTAL DAMAGE пЃ± GREEN CHEMISTRY -GREEN CHEMISTRY IN DAY-2-DAY LIFE 2.

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