PRESENTATIONON

ENVIRONMENTAL POLLUTION

BY- Name- Musharraf AliCourse-B.Tech(Bio)Branch-BT-3yr(6sem)college- CET-IILM-AHL, Gr.noida

• WHAT IS POLLUTION?

• Pollution is the introduction of contaminats into the natural environment that cause adverse change, in the form of killing life,toxicity of environment & damage to ecosytem as well as our surroundings

TYPES OF POLLUTIONS:-

1-AIR POLLUTION

2-WATER POLLUTION

3-NOISE POLLUTION

4-ENVIRONMENTAL LAWS FOR CONTROLLING POLLUTION

AIR POLLUTION-

• Air pollution is the addition of particles, gases & chemicals into the atmosphere that have potential to affect human health, health of animals, vegetations & natural resources

CAUSES OF AIR POLLUTION

• Combustion(of natural gas, petroleum, coal & wood in industries,automobiles, aircrafts etc.)

• Metallurgical processing(mieral dust,fumes containing fluorides,sulphides etc.)

• chemical industries

• processing industries(like cotton textiles,wheat flour mills)

• welding, stone crushing etc

CONTROL OF AIR POLLUTION

• Low sulphur fossil fuel• reduction in emissions• zoning of industries away from human

settlements• destroying pollutants by thermal or

catalytic combustion• changing pollutants to less toxic forms• by precipitation of pollutants• uses natural gases like LPG

WATER POLLUTION-

• It is degradation of quality of water due to addition of substances(inorganic, organic, biological) which is harmful for human use & growth of aquatic biota.

SOURCES OF WATER POLLUTION

• NATURAL SOURCES- clay & slit from soil erosion,leaching of minerals, falling of organic matter from banks.

• MAN-MADE SOURCES-1-muncipal waste water2-industrial waste water3-domestic sewage4-surface run off( contain pesticides &

fertilizers)

CONTROL OF WATER POLLUTION-

• biodegradation of domestic sewage• suspended, soild particles & inorganic

material can be removed by use of filter• indusrial effulents under various treatment

to lower pollutants rate• any type of waste material does not

discharge into water bodies• agriculture run off water should be

minimised• in industry there must be a water

treatment plant

NOISE POLLUTION

• Noise pollution is excessive noise that may distrupt the activity or balance of human life.

• noise or pollutant sound has a value of 80db(deciBel) & above.

SOURCES OF NOISE POLLUTION-

• various industries such as textile mills, printing presses, engineering establishments.

• agriculture machines like tractors,harvesters,tubewells etc.

• defence equipments such as tanks,shooting practices,explosions.

• transport vehicles• public address systems like loud speakers.• dynamite blasting• cracker used at ocassions like marriages &

festivals• stone crushing, construction work etc.

CONTROL OF NOISE POLLUTION-

• Decibels meters

• noise pollution control laws

• green mufflers or green belt vegetation

• ear plugs & ear muffs

• permissible time & sound level for use of crackers

• sound diversion

ENVIRONMENTAL LAWS FOR CONTROLLING POLLUTION-

1-ENVIRONMENT ACT,1986 - control of environmental pollution by setting up of central & state pollution control boards.

-the board check the emission & effulents by various industries.

-the act encompasses pollution limit of air,water,soil & noise.

-rules have been framed under this law from time to time such as-

: hazredeous wastes rules,1989: noise pollution rules,2000: Biomedical Waste Rules, 1998: Recycled Plastic Manufacture & usage rule, 1999: Municipal Solid wastes rules,2000: Ozone depleting substances rules,2000

Water Act( Prevention & control of Pollution)Act,1974.

• it specifies quality of water for various purposes, ways & means to control water pollution & prevention of its effect on human health & health of other biological entities.

Air ( Prevention & Control Of Pollution) Act,1981

• this act meant for preserving quality of air, controlling air pollution & preventing effect of air pollutants.

• By an Amendment in 1987, noise was also recognised as an air pollution.