POLLUTION... [CONTROL IT ! ]

                                                    POLLUTION

                         Environmental pollution is one of the major concerns facing the human race and other forms of life today.  Contamination of atmosphere by pollutants.

TYPES:👆

1.AIR POLLUTION

2.WATER POLLUTION

3.SOIL POLLUTION

4.NOISE POLLUTION

                                                

                                                     AIR POLLUTION 

A). PARTICULATE

      AIR POLLTANTS:

                                Unburnt carbon ,grains of  sand, fine cotton dust ,

                                    METAL PARTICLES:Lead,mercury

SOURCES:

                    1.Textile Industries , Exhaust from cars,smoke from industries.\

EFFECTS:

                   1.lung cancer

                  2.Thick smoke may prevent sunlight.

REMIDY:  

                   .special devices should be installed in factories to remove particulates  and poisones gases.

 b. GASEOUS POLLUTANTS:

                                        Sulphurdioxide ,nitrogen dioxide, corbon monoxide,hydrogen sulphide.

SOURCES:

                    1.Automobile exhaust

                   2.Petroleum refineries

                   3.Industries

EFFECTS:

                     NAUSEA,DIZZINESS, RESPIRATERY DISEASES ,ACID RAIN,VOMMITING.

REMEDY:

                     1.Sewage should be treated before releasing it into rivers fields.

                    2.All effluents from industries should be properly  treated before being released.

                                           WATER POLLUTION

SOURCES

                      1.effluents from industries .

                      2.oil spilling from the tankers.

                      3.fertilisers and pesticides addedto soil eventuallyreach the water bodies("run-off").

                      4.sewage from homes and industries discharged untreated into rivers,other water bodies.

EFFECTS:

                  1.chemicals destroy aquatic life.

                  2 organic pollutants like sewage increase bacterial growth thus, depleting dissolved oxygen                        for aquatic life(eutrophication).

                  3 poisonous chemicals like DDT, mercury enter the food chain and get                                                         concentrated(biomagnification) reach fish and ultimately man.

REMEDY:

                  1.Bio-fertilisers should be used insted of chemical fertilisers.

                  2.More trees should be planted.

                   3. Biological pest control  should be practised .

                            SOIL POLLUTION

SOURCES:

                     1.Gases like SO2 ,NO2.

                          2  fertilizers and pesticides .                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

EFFECTS:

                   1 effects on marine life .

                      2.causes typhoid, cholera.

                     3.digestive problem.

                    4.soil looses its fertility.

REMEDY:

                        Stopping using pesticides , fertilisers.

                                 NOISE POLLUTION

SOURCES: DJ musical bands ,louds speakers, train ,radio, t.v, ,jet aeroplane

EFFECTS:  hear loss ,Annoyance,Head ache, Rise in bloodpressure ,General fatigue.

REMIDIES:

                     1.Reduce noise at its sources.

                    2. personal protection -holding your hands over your ears,cotton plugs.

                     3.Strict laws prohibiting blowing car horns ,loud speakers ,etc. Near school and                                        hospitals.

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