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    SITI FURHANAH ULFAH ALI AKBAR

    NUR INTAN BINTI ZAINAL

    TATIANA EDDY TABAK

    SEHA BANDU

    Air Pollution

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    Air pollution Gases and particles in the air that

    are unhealthy for humans, plants

    and animals. Air pollutants can also be

    of primaryor secondarynature.

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    Ones that are emitted directly into

    the atmosphere by the sources

    (such as power-generatingplants).

    Primary nature

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    Ones that are formed as a result

    of reactions between primary

    pollutants and other elements inthe atmosphere, such as ozone.

    Secondary nature

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    Possibly one of the most

    important characteristics of airpollutants is their transboundarynature - they can easily travel and

    affect the areas far away fromtheir points of origination.

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    Types of Air Pollution

    Sulfur Dioxide

    Nitrogen OxidesCarbon Monoxide

    Ammonia

    Ozone

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    Sulfur DioxideColorless gas

    Suffocating odor that smellslike rotten eggs

    Can irritate eyes, nose, and

    lungs

    Contained within Fossil Fuels

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    Nitrogen Oxides Made by combustion of fossil

    fuels and cars

    There are two types of NitrogenOxide

    Nitric oxide which is colorless Nitrogen dioxidewhich is a

    reddish brown

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    Carbon MonoxideHighly toxic gas

    Colorless

    Odorless

    Tasteless

    Caused by fossil fuelcombustion

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    Ammonia Hazardous caustic

    gas

    Agriculture is themain source ofammonia mainly

    just livestock

    farming andanimal waste

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    Ozone Colorless

    Poisonous Gas Sharp, cold irritating odor

    Can be found in the stratosphere where itoccurs naturally Can also be found in the troposphere where it

    can be natural or from humans

    Troposphere Ozone is a pollutant Stratosphere Ozone protects the earth by

    keeping UV rays from hitting the earth

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    Effect of air pollutionGlobal warming

    Average increase of the earths temperature andTroposphere

    Which helps the climate patterns (The weather) change

    Can occur naturally and with help from human activities

    Acid rain

    When acid chemicals are swept into the air and intoareas where it raining and the acid falls to theground in the form of rain, snow, or fog

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    Smog

    Smoke and fog put together

    Ozone depletion

    This is when the Ozone starts to fadeaway because of the pollution so then theOzone doesnt protect the earth anymorefrom the UV rays

    Cause by human activities

    Causes Global Warming

    Smog

    Smoke and fog put together

    Ozone depletion

    This is when the Ozone starts to fadeaway because of the pollution so then theOzone doesnt protect the earth anymorefrom the UV rays

    Cause by human activities

    Causes Global Warming

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    Control measuresOzone depletion Generally target nitrogen oxides(NOx) and volatile organic

    compounds (VOCs), the primary contributors to ozone formation inthe troposphere.

    Comprise a set of regulations that specify emission limits or controlequipment that are deemed to be reasonable control technology.

    Acid rain Improvement in technologies and switching to clean combustion

    technologies are highly essential.

    Coal with lower sulphur content is desirable to use in thermal plants.Replacement of coal by natural gas would also reduce the problemsubstantially.

    Installing scrubbers to reduce smoke stack emissions, thoughexpensive, would be economical compared to the losses due todamage done to lakes, forests, food production and so on.

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    Global warming Choosing reusable products instead of

    disposables

    Smog

    The need for policy arises, that is Clean AirAct and several government agencies tryingto abate such problems as smog.

    In other words, regulations are enforced

    against individual polluters based upon apolluter pay principle Controlling industrial emissions of the

    precursors

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    DefinitionACIDIC DEPOSITION

    Arises when sulfuric and nitric acids mix

    with other airborne particles and fall to theearth as dry or wet deposits.

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    Anthropogenic sources

    SO - Fossil-fuel burning primarily byelectric power plants.

    No - Fossil-fuel burning primarily byelectric power plants and motor vehicles.

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    Effects Ecological and forestry effects:

    Acidification of surface waters.

    Health effects:

    Include respiratory and cardiovascularproblems.

    Aesthetic effects:

    Visibility impairment. Property effects:

    Damage to buildings, statues, and

    monuments

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    Discourage auto use, reduce number ofcar.

    Improve public transport.

    Mandatory carpools.

    Industrial & household control

    Reduce emission- burn less fuel. Do not smoke.

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    Air Pollution Case Study

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