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Coal provides 40 percent of the world’s electricity. It produces 39 percent of global CO₂ emissions. It kills thousands a year in mines, many more with polluted air.

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Data is accumulating that air pollution exposure also affects the .

In 2011, a large Danish epidemiological study found an increased risk of lung cancer for patients who lived in areas with high nitrogen oxide concentrations. In this study, the association was higher for non-smokers than smokers. An additional Danish study, also in 2011, likewise noted evidence of possible associations between air pollution and other forms of cancer, including cervical cancer and brain cancer.

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A review of evidence regarding whether ambient air pollution exposure is a risk factor for cancer in 2007 found solid data to conclude that long-term exposure to PM2.5 (fine particulates) increases the overall risk of non-accidental mortality by 6% per a 10 microg/m3 increase. Exposure to PM2.5 was also associated with an increased risk of mortality from lung cancer (range: 15% to 21% per 10 microg/m3 increase) and total cardiovascular mortality (range: 12% to 14% per a 10 microg/m3 increase). The review further noted that living close to busy traffic appears to be associated with elevated risks of these three outcomes --- increase in lung cancer deaths, cardiovascular deaths, and overall non-accidental deaths. The reviewers also found suggestive evidence that exposure to PM2.5 is positively associated with mortality from coronary heart diseases and exposure to SO2 increases mortality from lung cancer, but the data was insufficient to provide solid conclusions. Another investigation showed that higher activity level increases deposition fraction of aerosol particles in human lung and recommended avoiding heavy activities like running in outdoor space at polluted areas.

Now let's look a bit more closely at the three key sources of air pollution.

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The Prime Minister also delivered a law to controlling the amount of automobiles and cars in cities and province zones. Furthermore, they should improve the public transport to encourage people using them. As a result, fewer motors and cars will reduce the amount of emission. For citizens to protect yourselves and the Air here are some suggestions. For example, when you stop at the red light more than 20 seconds, turn off the engine. It is also recommend wearing mask and glasses to prevent dust and other harmful gases. We all have a responsibility to make sure that we use better practices to deal with air pollution. If there are not any actions taken seriously our lives and our next generation will be greatly threatened. Hopefully in the near future, our air will become fresher and Vietnam economy would continue to be one of Asia’s dragons without hurting the environment.
There are now practical alternatives to the principal causes of air pollution:

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When we think of pollution, we tend to think it's a problem that humans causethrough ignorance or stupidity—and that's certainly true, of the time. However, it's important to remember that some kinds ofair pollution are produced naturally. Forest fires, eruptingvolcanoes, and gases released from of rocks inside Earth are just three examples of that can have hugelydisruptive effects on people and the planet.

In most cases this contamination is a result of people overloading the water environment with wastes. Causes of Water Pollution Essay

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As we discovered in the last section, air pollution means differentproblems at different scales—in other words, it's not one singleproblem but many different ones. Solving a problem like passivesmoking (how one person's cigarette smoke can harm other people'shealth) is very different to tackling a problem like global warming,though both involve air pollution and they do have some things incommon (both problems, for example, require us to think about how ourbehavior can affect other people in the short and long term and toact more considerately). Generally, air pollution is tackled by amixture of technological solutions, laws and regulations, and changesin people's behavior.

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As for indoor air pollution, there are different ways to deal with those dreadful particles. According to Borwein (2000), there are six ways to deal with the problem of indoor air pollution. It is always good to install indoor air cleaners. This can help to filter the dust particles, the molds, and tobacco smoke in the air and maintain the quality of the air indoors, particularly in bedrooms. It is very also important to have exhaust fans, gas stoves and clothes dryers vented properly to the outside of the flat so that the polluted air will not linger inside the house, causing the quality of indoor air to decrease. In additional, it is also necessary to wash and dry the filters and evaporation trays of dehumidifiers, refrigerators, air cleaners, and air conditioners to prevent the dust from staying there and lower the workability of these electrical appliances.