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Cars and Trucks and Things That Go…Put the Brakes on Traffic-Related Pollution Exposure at Schools

attend school near major roads appear to be more at risk for a variety of short- and long-term health effects, including asthma, reduced lung function, impaired lung development in children, and cardiovascular effects in adults. For example, a study by researchers at the University of Southern California found that children who live within 500 meters (that’s about one-third of a mile) from a freeway incur substantial and long-lasting deficits in lung development and function compared to children living at least 1500 meters (a little under 1 mile) from a freeway. Since motor vehicles are responsible for more than half of the smog and global warming pollution in California, the vehicle you buy directly impacts air quality, you may start wondering, “Where is a station for smog check near me? Yet nearly 17,000 of our country’s schools are located within steps of a heavily-traveled road, potentially exposing more than 6 million children to traffic-related pollution at a time when t…
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Emissions test as a measure of combustion efficiency

Often emissions test for CO+CO2 as a measure of combustion efficiency. An ideal burning of a hydrocarbon would only release water vapor and carbon dioxide. Unfortunately engines are far from ideal, and the real chemistry of combustion is very complicated as a result. The pollutants in exhaust are what we call the byproducts of combustion. Bad fuel air ratios that cause noxious emissions are caused by the engine operating outside of its ideal rpm range. Engines have only one speed at which they produce the best ratio of power output to low emissions. Thus STAR smog check station is ready for cooperation and assistance. Unfortunately to work with transmissions for variable vehicle speed and power output variation, engines must operate over a wide range of speeds from idle to redline. Incomplete combustion also causes particulate matter and VOC/ HC to form. These dust/ soot/ vapors are extremely toxic: they are the parts that give some of the color and most of the nasty smell t…
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The latest technology in emission control

A wide range of different technologies are employed to reduce smog forming emissions. Catalytic converters for example use the waste heat in the exhaust to energize a ceramic/ metal "sponge" of catalysts metals that break down many of the toxic emissions into their non-toxic constituent chemical parts, facilitating post combustion reaction completion and chemical reduction of noxious emissions species like NOX, CO, VOC and SOX. In this regard STAR stations are ready for help and assistance. The US Clean Air act was pivotal for the development of emissions reduction technology. Robust scientific and technological development in emissions control systems resulted from government policies derived from the clean air act "pushing" industry to clean up. Public policy can be a major source of inspiration for the private sector. Public policy that rewards "positive" business practices tends to be far more effective than public policy that punishes "bad" business practices. Automakers …
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