POLLUTION

DEFINETION OF POLLUTION

WHEN HARMFUL SUBSTANCES

CONTAMINATE THE ENVIRONMENT IT IS

CALLED POLLUTION

POLLUTION REFERS TO VERY BAD

CONDITION OF ENVIRONMENT IN TERMS

OF QUALITY AND QUANTITY

TYPES OF POLLUTION

TYPES OF

POLLUTION

AIR POLLUTION

WATER POLLUTION

WHAT IS ATMOSPHERE

ATMOSPHERE IS THE LIFE BLANKET OF

EARTH

IT IS THEREFORE ESSENTIAL THAT WE

KNOW ABOUT THE ATMOSPHERE AND

THE WAYS IN WHICH IT IS POLLUTED

CAUSES OF AIR POLLUTION

MAJOR SOURCES

OF AIR POLLUTION

INDUSTRIES

AUTOMOBILES

HIGH PROPORTION

OF UDESIRABLE

GASES SUCH AS

CARBON DIOXIDE

ETC

EFFECTS OF AIR POLLUTION

AIR POLLUTION

EFFECTS ??

HUMAN HEALTH

ANIMALS

PLANTS

THE ATMOSPHERE

AS A WHOLE

OZONE DEPLETION

ACID RAIN

OZONE DEPLETION

Ozone layer depletion, is simply the wearing out (reduction) of the amount of ozone in the stratosphere. Unlike pollution, which has many types and causes, Ozone depletion has been pinned down to one major human activity.

Industries that manufacture things like insulating foams, solvents, soaps, cooling things like Air Conditioners, Refrigerators and ‘Take-Away’ containers use something called chlorofluorocarbons (CFCs). These substances are heavier than air, but over time, (2-5years) they are carried high into the stratosphere by wind action. Depletion begins when CFC’s get into the stratosphere

ACID RAIN

Acid rain is rainfall that has been acidified. Rain is acidified by oxides of sulfur and nitrogen. Acid rain usually has a pH of less than 5.6. Acid rain is formed when pollutants called oxides of sulfur and nitrogen, contained in power plant smoke, factory smoke, and car exhaust, react with the moisture in the atmosphere. Dry deposition, such as soot and ash, sleet, hail, snow, smog and low level ozone are forms that acid rain can take, despite its name.

HOW TO AVOID AIR POLLUTION

YES WE CAN AVOID

POLLUTION AS

FOLLOWS

USE NATURAL GASES

LIKE LPG

DO NOT BURST

CRACKERS

USE OF PUBLIC

TRANSPORT

WHAT IS WATER POLLUTION

THE CONTAINATION OF WATER WITH

UDESIRABLE SUBSTANCES WHICH

MAKES IT UNFIT FOR USAGE IS TERMED

AS WATER POLLUTION

CAUSES OF WATER POLLUTION

ABOUT 40% OF DEATH WORLD WIDE

ARE CAUSED BY WATER POLLUTION

WATER POLLUTION IS CAUSED BY

INDUSTRIAL WASTES AND AFFLUENT

DISCHARGE INTO RIVERS

EFFECTS OF WATER POLLUTION

DISEASES LIKE CHOLERA

MALARIA

TYPHOID

AQUATIC LIFE GETS DESTROYED

HOW TO AVOID WATER POLLUTION

RIVERS SHOULD NOT BE USED FOR

WASHING CLOTHES OR BATHING

ANIMALS IN.

HARVESTING OF WATER TO MEET

WATER REQUIREMENTS

LIQUID INDUSTRIAL WASTE TO BE

TREATED PROPERLY

NO GARBAGE SHOULD BE DISPOSED IN

WATER BODIES

THANK YOU