Environmental Pollution

Air pollution

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What Is Air Pollution?……...CLICK & SEE

Air pollution is the contamination of air by the discharge of harmful substances. Air pollution can cause health problems including burning eyes and nose, itchy irritated throat, and breathing problems. Some chemicals found in polluted air can cause cancer, birth defects, brain and nerve damage, and long-term injury to the lungs and breathing passages in certain circumstances. Above certain concentrations and durations, certain air pollutants are extremely dangerous and can cause severe injury or death.Air pollution can also damage the environment and property. Trees, lakes, and animals have been harmed by air pollution. Air pollution has thinned the protective ozone layer above the Earth. Air pollution can damage buildings, monuments, statues, and other structures.

Air pollution also can result in haze, which reduces visibility in national parks and elsewhere, and can sometimes interfere with aviation.

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Carbon Monoxide (CO) is an odorless, colorless gas. After being inhaled, CO molecules can enter the bloodstream, where they inhibit the delivery of oxygen throughout the body. Low concentrations can cause dizziness, headaches, and fatigue; high concentrations can be fatal.

CO is produced by the incomplete burning of carbon-based fuels, including gasoline, oil, and wood. It is also produced from incomplete combustion of natural and synthetic products, such as cigarette smoke. It can build up in high concentrations in enclosed areas such as garages, poorly ventilated tunnels, and even along roadsides in heavy traffic.

Carbon Dioxide (CO2) is the principal greenhouse gas emitted as a result of human activity (e.g., burning of coal, oil, and natural gas). CO2 can cause burns, frostbite, and blindness if an area is exposed to it in solid or liquid form. If inhaled, it can be toxic in high concentrations, causing an increase in the breathing rate, unconsciousness, and death.

Chlorofluorocarbons (CFCs) are chemicals used in great quantities in industry, for refrigeration and air conditioning, and in consumer products. CFCs, when released into the air, rise into the stratosphere (a layer of atmosphere high above the Earth). In the stratosphere, CFCs take part in chemical reactions that result in reduction of the stratospheric ozone layer, which protects the Earth’s surface from the sun. Reducing the release of CFC emissions and eliminating the production and use of ozone-destroying chemicals is very important to the Earth’s stratosphere.

Hazardous Air Pollutants (HAPs) are chemicals that cause serious health and environmental effects. Health effects include cancer, birth defects, nervous system problems, and death due to massive accidental releases, such as the disaster that occurred at a pesticide plant in Bhopal, India.

Hazardous air pollutants are released by sources such as chemical plants, dry cleaners, printing plants, and motor vehicles including cars, trucks, buses, planes.

Lead is a highly toxic metal that produces a range of adverse health effects particularly in young children. Lead can cause nervous system damage and digestive problems, and some lead-containing chemicals cause cancer. Lead can also harm wildlife.

Lead has been phased out of gasoline, which has considerably reduced the contamination of air by lead. However, lead can still be inhaled or ingested from other sources. The sources for lead include paint (for houses and cars), smelters, manufacture of lead batteries, fishing lures, certain parts of bullets, some ceramic ware, miniblinds, water pipes, and a few hair dye products.

Ozone (O3 is a gas that is a variety of oxygen. Oxygen consists of two oxygen atoms; ozone consists of three. Ozone in the upper atmosphere, where it occurs naturally in what is known as the ozone layer, shields the Earth from the sun’s dangerous ultraviolet rays. However, at ground level where it is a pollutant with highly toxic effects, ozone damages human health, the environment, crops, and a wide range of natural and artificial materials. Ground-level ozone can irritate the respiratory tract, cause chest pain, persistent cough, an inability to take a deep breath, and an increased susceptibility to lung infection. Ozone can damage trees and plants and reduce visibility.

Ground-level ozone comes from the breakdown (oxidation) of volatile organic compounds found in solvents. It is also a product of reactions between chemicals that are produced by burning coal, gasoline, other fuels, and chemicals found in paints and hair sprays. Oxidation occurs readily during hot weather. Vehicles and industries are major sources of ground-level ozone.

Nitrogen Oxide (NOx) is a major contributor to smog and acid rain. Nitrogen oxides react with volatile organic compounds to form smog. In high doses, smog can harm humans by causing breathing difficulty for asthmatics, coughs in children, and general illness of the respiratory system. Acid rain can harm vegetation and run into lakes and rivers which changes the chemistry of the water, and makes it potentially uninhabitable for all but acid-tolerant bacteria.

Nitrogen oxides are produced from burning fuels, including gasoline and coal. (NOx) acid aerosols can reduce visibility.

Particulate Matter is any type of solid in the air in the form of smoke, dust, and vapors, which can remain suspended for extended periods. Aside from reducing visibility and soiling clothing, microscopic particles in the air can be breathed into lung tissue becoming lodged and causing increased respiratory disease and lung damage. Particulates are also the main source of haze, which reduces visibility.

Particulates are produced by many sources, including burning of diesel fuels by trucks and buses, fossil fuels, mixing and application of fertilizers and pesticides, road construction, industrial processes such as steel making, mining, agricultural burning, and operation of fireplaces and woodstoves.

Sulfur Dioxide (SO2) is an odorless gas at low concentrations, but can have a very strong smell at high concentrations. SO2 is a gas produced by burning coal, most notably in power plants. Some industrial processes, such as production of paper and smelting of metals, produce sulfur dioxide.

Like nitrogen oxides, SO2 is a major contributor to smog and acid rain. SO2 is closely related to sulfuric acid, a strong acid. It can harm vegetation and metals and can cause lung problems, including breathing problems and permanent damage to lungs.

Volatile Organic Compounds (VOCs) are organic chemicals. All organic compounds contain carbon, and organic chemicals are the basic chemicals found in all living things and in all products derived from living things. Many organic compounds we use do not occur in nature, but were synthesized by chemists in laboratories. Volatile chemicals produce vapors easily. At room temperature vapors readily escape from volatile liquid chemicals.

VOCs include gasoline, industrial chemicals such as benzene, solvents such as toluene and xylene, and perchloroethylene (principal dry cleaning solvent). VOCs are released from burning fuel, such as gasoline, wood, coal, natural gas and from solvents, paints, glues, and other products used at home or work. Vehicle emissions are an important source of VOCs. Many VOCs are hazardous air pollutants; for example, benzene causes cancer.


There are many ways to reduce air pollution. People can contribute significantly to cleaning the air if they take (or do not take — as the case may be) certain simple actions to reduce air pollution.

Since vehicles contribute greatly to air pollution by emitting CO, NOx, ozone, VOCs, HAPs, CFCs, and particulate matter, each driver who makes personal changes in driving habits contributes to the reduction of air pollution.

Limit driving, use public transportation, walk, use carpools, bike, or so forth. These are the best ways an individual can help reduce air pollution!

If you must drive, then try to follow these guidelines:

  • Avoid high speeds.
  • Buy a vehicle with high miles per gallon.
  • Do not overfill or top off your gasoline tank.
  • Do not refuel on high ozone days — try to refuel after dark.
  • Drive a newer vehicle; the new models generally pollute less.
  • Drive alternative vehicles or alternatively fueled vehicles, such as electric vehicles.
  • Drive smoothly and avoid lengthy idling.
  • If the vehicle is a pre-1995 model, have a professional convert the air conditioning from the dangerous CFC R-12 to the safer R-134a to reduce your contribution to the ozone hole.
  • Keep your car well maintained, especially the emissions control system.
  • Keep tires properly inflated.
  • Maintain your vehicle’s air conditioning system — do not allow it to leak.
  • Make fewer trips in your vehicle — plan routes to avoid traffic.
  • Reduce fuel use as often as possible — a vehicle’s shape and design features can affect its fuel use.

Here are some other actions every individuals should try to take to reduce air pollution:

  • Defer lawn and gardening chores that use gasoline-powered equipment on high ground-level ozone days.
  • Eat organically grown food, or at least less pesticide-dependant foods.
  • Limit dry cleaning.
  • Postpone using oil-based paint and solvents on high ground-level ozone days.
  • Reduce consumption of electricity — conserving reduces emissions of SO2, NOx, VOCs and particulate matter into the air.
  • Start charcoal with an electric or chimney-type fire starter instead of lighter fluid.
  • Reduce, Reuse, Recycle — less consumption of products will reduce all types of air pollution.
  • Use airconditioning as less as possible.
  • Plant and try to maintain as maney trees as possible in your locality.
  • Do not encourage fireworks.
Environmental Pollution

Environmental Pollution

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Environmental pollution and growth of different Disesses

This is most talked about subject in today’s world. Many studies in people have demonstrated an association between environmental exposure and certain diseases or other health problems. Examples include radon and lung cancer; arsenic and cancer in several organs; lead and nervous system disorders; disease-causing bacteria such as E. coli O157: H7 (e.g., in contaminated meat and water) and gastrointestinal illness and death; and particulate matter and aggravation of heart and respiratory diseases.

To understand the relationship between health and the environment, scientists study a series of events that begins with the release of a pollutant into the environment and may end with the development of disease in a person or a population.

I do wander whether there will come a time when we can no longer afford our westfulness-chemical waste in rivers,metal waste everywhere, and attomic wastes burried deep into the earth or sink into the sae.

Pollution is nothing but the action of enviromental contamination with man made waste. This includes mainly land,water and air.Pollution comes in various forms including the lesser known noise., light and thermal pollution.

Growth of world population, advancement of science and technology and our greed to become more powerful has already brought us to such a stage that from here we can never go back.So, all the time we are pulling our beautiful world with its flora and fauna to the devastrative grave. YES, WE ALL KNOW IT FOR SURE, THAT ALL THE BEAUTIFUL CREATIONS WILL BE LOST SOME DAY.

But we can still hope to extend its destraction time to few more generations ,if every human of the world gets conscious from today and starts doing something to save the environment as much as one can do.It may be as little as to switching off your room light or fan when you donot need it.If we are conscious today, our next generation will also be more conscious tomorrow and that way only we will extend the period of devestration and the world will be a better living place for few more years for our next generations.

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Environmental Pollution

Environmental pollution

Environmental pollution is the main cause for most of the human illness around the world.The time has already reached when every one of us should be well aware of it.Perhaps, the total sufferings and agony that we get by polluting the environment is much more the amount of comfort that technological advancement gives us.It is the negative effect of advancement of the human society…… & see

Our Mother Earth.

This is what it should be looked like.

Environmental Pollution leading our Mother Earth To

Deforestation is one of the other thousands which is killing our atmosphere very fast.Some great man once said “if you cannot do any good to human,at least plant a tree which will grow big and stay on earth for hundred years and play a big role in the survival of not only humanity but all the living organism of the world.”

People interested in this subject may go to this site for more knowledge. I would also ask them to browse this site as well