THE EFFECT OF AIR POLLUTION

Smog and other types of air pollution can lead to or aggravate respiratory, heart, and other health problems. It can beparticularly harmful to people with existing lung or heart disease, the elderly, and the very young. Some fail to meet one or more federal airquality standards during some portion of the year. However, not everyone who lives in such areas will have health problems. Level, extent, and duration of exposure, age, individual susceptibility, and other factors play a significant role in determining whether or not someone will experience pollution-related health problems. Since polluted air can move from one area or region to another, it has the potential toaffect virtually all of us.
Acid rain which is caused by sulfur dioxide and nitrogen oxides combining with moisture in the air, limits the ability of lakes to support aquatic life, may damage trees and plants, and erodes building surfaces and national monuments. Pollutants in the air can also reduce visibility, obscuring the majestic vistas in national parks such as Grand Canyon and Shenandoah.
Other air pollutants--called "air toxics"--are known or suspectedto cause cancer or other serious heath effects, such as damage torespiratory or nervous systems. Air toxics include metals,particles, and certain vapors from fuels and other sources.

SOURCE & EFFECT of AIR POLLUTION (in diagram)

Effect of polluted air:

• hazardous to human health
• drinking water
• ground water
• aquatic ecosystem
  

SOURCE & EFFECT of AIR POLLUTION (in diagram)

Source:

• motor vehicle
• forest fire
• deforestation
• industrial waste
• gas emission
• open fire in paddy field
• intensive husbandry
• soil fertilization

Effect :

• acid rain
• smog
  

CFC PROBLEM

We should try to understand this...







The picture/map below show area of the CFC problem occured...









Fast action may safe the earth from further damage...Think!What we can do to save our world...

Air Pollution 2

There are many different types of air pollutant. These pollutants have different effects on the environment and on our health. Some, directly because they are harmful chemicals and others because they can react together to produce harmful chemicals. Other pollutants or pollutant combinations upset the natural balance of acidity and nitrogen in the environment which can affect the diversity of species in sensitive areas. Other pollutants can contribute to changing global conditions and potentially give rise to dramatic changes in climate and sea level.

Energy and the Environment: Fossil Fuels

Fossil Fuels are one of the most important things on this planet to the human race. Without fossil fuels we wouldn't have today's current means of transportation, we would have less heating for the general population, energy uses would be more expensive, and overall the economy and the world would not be able to sustain themselves. Even still, the fact that fossil fuels are on this planet will never change, but how we use them and what impacts their use has will always be an issue.

Is it for real???

Even though fossil fuels provide for the most percentage of energy usage in the world, there is still the issue of pollution and other environmental impacts. Just oil and natural gas alone provide for more than 60 percent of the energy consumed in the United States (US Dept. of Energy). With this amount of fossil fuel usage taking place, and the fact that burning, transporting, recovering, and processing fossil fuels creates pollution, one can see how much total damage that is occurring on a daily basis.

Car-OzonLayer-Pollution

The ozone layer is made up of a molecule containing three oxygen molecules. Playing an important role in absorbing radiation from the sun. Protecting us from ultra violet rays. Without an ozone layer these rays would effect humans with non-melanoma skin cancer, as well as damaging plant life, marine life, and animal life. Ozone molecules destroy and create at a stable rate, but when in contact with certain man made chemicals. Ozone molecules are being destroyed faster than they are being produced, creating a hole in the ozone.

CFC's, once considered a miracle substance, is one of the major chemicals breaking down ozone molecules. Breaking ozone molecules down at a rate of 100,000 to 1. CFC is a chemical used in the cooling process, or refrigeration process of man made objects. Car's air conditionings release these CFC's, and appropriate precautions are not being taking to deplete the amount of CFC's in America today The disposal and production of car hurts the environment in two ways, adding CFC's to the atmosphere and creating landfills for tires. In the production of cars, CFC's are entered into the car system. Releasing small amounts of CFC's into the atmosphere, but it only takes a small amount of CFC's to do a good amount of damage. CFC's are also released during the life of the car, and released once again in the destruction of cars. Tires also damage the environment because tires are not biodegradable, and usually discarded in a tire dump. Most tires are sent to dumps or landfills were they must be monitored, in case of a fire breaking out. No one is really sure of the damages done from a tire fire, but they can never be put out. Tires can burn for decades, releasing smoke and haze into our environment. To deal with a burning fire they must be buried, this does not extinguish the fire; it just covers it up. From that point the tire burns within. These landfills also create problems because of the amount of disease spread from the large amount of insect populations growing in these tires. These tire dumps are not a very nice setting and cause much of a threat to humans.

THE CAR-POLLUTION

Cars damage our environment by the emissions released from the combustion system of an automobile. Cars release 30 percent of the carbon dioxide in the earth's air. Carbon dioxide is released from the tailpipe of a car and can do much damage to the human respiratory system. Every time an automobile burns a gallon of gasoline it releases 22 pounds of carbon dioxide. Carbon monoxide is also a damaging greenhouse gas. Cars account for 76 percent of the carbon monoxide in the earth's air. Carbon monoxide affects the bloods total capacity for carrying oxygen by to the heart, brain, and other important organs.

Automobiles also release nitrogen oxide (N0), contributing 30 % of N0 in the earth's atmosphere. Adding to the already problem of acid rain, which can damage health by increasing coughing, asthma, and stinging eye. Volatile organic compounds also released by car emissions combine with nitrogen oxides creating smog. Smog contaminates city air and cause respiration problems to humans and harms vegetation. Volatile organic compounds have also been linked to the vague 'Sick Building Syndrome' a cancerous disease that has unknown effects on the body.

The Car and the Environment

Transportation plays a very important role in America. The automobile is the main form of transportation in America. Connecting people from point 'A' to point 'B'. America is covered with roads that transport cars and people across such areas as the islands of the Florida Key's to under the mountains of the Colorado Rockies. Cars offer fast reliable transportation, offering drivers access to anywhere with roads, but there are consequences.
Automobiles are the leading cause to America's air pollution problem. Cars also release toxic emissions that damage our environment. Hurting our environment by adding to the greenhouse effect, damaging air quality, and decreasing the ozone. Not to mention the growing smog problems, disasters done with landfill and the effects done to our water supply. Which all are connected with the greenhouse effect, ozone depletion, and air quality. Even though today's ozone is stable, ultraviolet rays are under control, and the air we breathe is still healthy. In the near future these luxuries will not be available if we continue to drive cars of today. Affecting the way humans operate their lives on a regular basis.

The Problem of Air Pollution

Air pollution is the biggest problem in the world. The definition of air pollution is the presence in the atmosphere of one or more contaminants as is injurious, or tends to be injurious, to human health or welfare, animal or plant life.

Acid rain and smog are the two major effects of air pollution. The main source of air pollution comes from industry, which causes a lot of problems for plants, animals, and human beings. Thermal power plants, refineries, petro chemicals and mines release dangerous pollutants into the air; for instance, sulphur dioxide, carbon monoxide, nitrogen oxides and lead. Burning coal, producing paper or smelting metal cause terrible pollution too.

Private houses and office buildings are also responsible for air pollution. When chemical and synthetic materials are used for construction, air pollution can become a problem. Smoking, cooking, burning coal or wood in the house cause indoor air pollution. If the ventilation is poor, it's even worse.

AIR POLLUTION

Air, is the most essential element for all living organisms and yet, most humans play a big role on polluting this essential resource. Air pollution may not be as dangerous in its direct outcome as nuclear or water pollution can be, but in the long term it will have an tremendous effect on the environment and health of its organisms living in. Asthma, cancer, acid rain, and the disability to photosynthesize are only a few causes of air pollution.

The atmospheric pollutants with the greatest effect onto the environment are the carbon monoxide, carbon dioxide, hydrocarbons, sulfur dioxide, nitrogen oxides, dust particles, radioactive isotopes, and chlorofluorocarbons. The major sources that enable carbon monoxide to enter the atmosphere are the exhausts of cars, the burning of fossil fuels, and the oxidation of natural methane. Carbon dioxide is caused by the consumption of fossil fuels only and it causes the possible greenhouse effect which has global warming as an outcome. Hydrocarbons are caused by the combustion of oil and petrol and it effects the environment with carcinogen. Carcinogen is a chemical agent that causes cancer. Sulphur dioxide is certainly one of the major atmospheric pollutants considered that it causes stinging eyes, lung damage, asthma, and acid rain. It is the result of coal-fired power stations. Nitrogen oxides that is produced by the exhaust of cars, causes pneumonia and asphyxia.

INTRO: ENVIRONMENTAL SCIENCE

Before i'm going to explain about air pollution, i would like to let u know what i've learned in this course. Here, i'll explain what is environmental science.

Environmental science is a field encompassing the wide range of scientific disciplines that need to be brought together to understand earth systems and the many interactions among physical, chemical, biological, and human components.

Environmental science provides an integrated, quantitative, and interdisciplinary approach to the study of environmental systems. Individuals may operate as environmental scientists, or a group of scientists may work together, pooling their individual skills.

Assalamualaikum....

This is my first trial to create blog...never get chance 2 create even once...thanks to PM coz let me do this as one of the assignment in TSE2013. credit to him..

Hope this blog will be the best even there's still a lot of thing 2 add here. Any suggestion??? plz let me know...tq.. :)