What Is Environment ?? Threats To Environment Air Pollution

What is Environment ??
Threats to Environment
 Environment means our surrounding Air pollution
 Environment includes:  Tonnes of pollutants dumped in air by industries,
Air vehicles
 Green coverage decreasing day by day
Water
Air Pollutants
Soil
CO2
Biological Environment- Flora,
Fauna CO
Noise Nitrogen oxides (NOx)
Aesthetics Sulfur oxides

Volatile Organic Compounds (VOCs)
Cultural, Socio-Economic,
Particulate Matter
Political Conditions
Toxic metals- lead, cadmium
Why Care for Environment ??

It affects our ability to live on Earth
It affects our health, our economy, our existence
Effects of Air Pollution  Cancer causing potential of diesel exhaust is very
high
 Dust Particles
 Poly aromatic hydrocarbons (PAHs) and
of small sizes
particulate matter of diesel exhaust -10 times more
damages lungs–
causing respiratory potent to cause mutation
 NOx reduces oxygen carrying capacity of blood,
symptoms like
cough, wheezing, can cause cancer, emphysema
 NOx - Ozone - respiratory problems
asthma etc
 Excess
Carbon Monoxide Protect Environment (What can we do?)
can cause death
 Excess CO2 , CH4 (Green house gases)  Preventive action is the best
 Spread the awareness among people
 Conduct epidemiological studies– how air quality
causing Global warming affects health????????
 Pressurize governments for proper policies for e.g.
Polar ice caps melting
Higher sea levels – floods - prevent dieselization of private vehicles
 Promote usage of bicycles
 Use alternative energy resources-solar,wind…
 Zoning and transport infrastructure planning
 Introduction of cleaner engines and cleaner fuels
like CNG (compressed Natural Gas)
 Stricter regulations for vehicular and industrial
emissions and regular compliance checking
 Stop burning of wastes
Water Pollution Water Pollutants
 Heavy metals--- chromium, nickel, copper etc
 Inorganic chemicals– acids, alkalis, inorganic salts
 Nutrients- Nitrogen, Phosphorus
 Disinfection byproduts– trihalomethanes etc
 Microorganisms
Effects
 Cadmium causes Itai Itai disease
 Mercury causes Minamata disease
 Microorganisms causes diseases like dysentry,
diarrohea
 Excess nutrients cause eutrophication
Decreases dissolved oxygen concentration
Causes
 plastics and garbages dumped into river Affects aquatic life
 Clay idols discarded into river
 Human corpse discarded into river
 Oil Spills
 Oil spill cleaning process
Minamata disease
YOU CAN HELP Soil Pollution
 Never throw rubbish away any how. Always look for the Itisthe degradation of Earth's
correct waste bin. If there is none around, please take it landsurfaces by human
home and put it in your trash can. This includes places like activities andmisuse of land
the beach, riverside and water bodies. resources.
 Use water wisely. Do not keep the tap running when not
in use. Also, you can reduce the amount of water you use
in washing and bathing. If we all do this, we can
significantly prevent water shortages and reduce the
amount of dirty water that needs treatment.
 Do not throw chemicals, oils, paints and medicines down
 the sink drain, or the toilet. In many cities, your local
environment office can help with the disposal of medicines
Causes
and chemicals. Check with your local authorities if there is
a chemical disposal plan for local residents.  Haphazard disposal of urban and industrial
 Buy more environmentally safe cleaning liquids for use at wastes
home and other public places. They are less dangerous to  Exploitation of minerals
the environment.
 Harmful agricultural practices
 If you use chemicals and pesticides for your gardens and
farms, be mindful not to overuse pesticides and fertilizers.
This will reduce runoffs of the chemical into nearby water
sources. Start looking at options of composting and using
organic manure instead.
 If you live close to a water body, try to plant lots of trees
and flowers around your home, so that when it rains,
chemicals from your home does not easily drain into the
water.
 Population increasing Causes
Higher food demand

Construction debris
Intensive agriculture
Forest converted to Construction,

agricultural fields destruction of forests
monoculture
Urbanization More land required
Excessive for landfill sites
use of
fertilizers,
pesticides, Informal settlements,
herbicides poorly maintained
sewage pipes
EFFECTS
 Can seriously disrupt the balance of nature
 Pesticides can damage crops
 Some pollutants can get into our systems indirectly
from eating vegetables grown in contaminated soil.
 Reduced aesthetic appeal
What can we do?

 Three R– Reduce, Reuse, Recycle
 Collect degradable and non degradable waste in
separate bins
 Soil remediation for polluted soil
 Plant more trees
Afforestation reduces
soil erosion

What Is Environment ?? Threats To Environment Air Pollution

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What is Environment ??

Noise Nitrogen oxides (NOx)

Aesthetics Sulfur oxides

Why Care for Environment ??

Decreases dissolved oxygen concentration

Higher food demand

Forest converted to Construction,

What can we do?

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