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Someone lucky enough to be living in Montana might view all the concern about air pollution as a mystery. You will see things through different eyes, though, once the air gets to be visible, and a deep breath makes you long for the country – a not atypical metropolitan scenario. Nowhere on earth is actually free from air pollution; if a place doesn’t make its own, it just wafts in naturally, since there are no pollution border controls.

The atmosphere is loaded with things that are bad for people, such as carbon monoxide, sulfur dioxide, nitrates, lead, ozone, secondhand tobacco smoke and particulate matter. Particulate matter emanates from many sources, such as power generation, vehicle emissions, diverse forms of industrial pollution, in addition to others. Additional sources include forest fires, volcanic activity, mold, and anything, really, that puts impurities in the air. All of these particles come in various sizes, composition and origin, and one of the largest components is automobile emissions. Roads crowded with vehicles are the reasons behind the deteriorating world-wide air pollution situation, and of course the biggest cities are the worst culprits.

Carbon monoxide gas is a primary part of air pollution, but it’s not easy to detect, being without having color or odor. Cigarette smoking and gasoline-powered vehicles are the main sources. In the most extreme case you could very well die, but given that it lowers the level of oxygen it always damages the body. Even small amounts of carbon monoxide absorbed by the body over an extended period of time can cause diseases of the respiratory tract. It’s amazing just how many health problems world-wide develop from carbon monoxide. There are plenty of studies proving how negative the effects are with air pollutants, especially from cars, but also factories.

It is evident from the studies that from one city to another the pollutants observed to be present and their effects are very different. Pollutants from traffic were found to be the cause of a greater mortality rate, in an eight year study involving five thousand adults. People living near to a busy road have a higher probability of dying from a cardiovascular disease, just like a heart attack. People residing in the most polluted cities in the US can have their life expectancy shortened by two to three years because of the pollution in the air. The conclusion of scientists is that people who have been exposed to elevated levels of particle pollution, possibly over short terms, are more prone to die from cardiovascular events.

Areas with higher concentrations of particle pollution have greater numbers of hospital admissions due to pulmonary and cardiovascular conditions. You will probably live a few years less if perhaps you have been living in an area which has an elevated level of particle pollution. Unless circumstances change, all these facts point to a fairly unhealthy future for people in America. There must be a better way to control the amount of pollution from vehicles, or the future will be even worse than the present.

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