Smart Traffic Light for Air Pollution

Air is the fundamental necessity for human survival. But now we can’t ensure the air we breathe is clean and pollution-free, because the oxygen we need is being seriously polluted by smokestacks of factories, exhaust of transport vehicles, chemicals, volcanic activities, and most of these pollutants are contributed by human factor. In the paper, I will be focus on the air pollution caused by heavy road traffic, which almost everyone would realized every day. The fact is that there are too much old cars in the country which have such terrible exhaust system, together with the old traffic light system that was comply 20 years ago and it’s considered as a dull system in the modern generation (Echaves, 2013). One of the ironic and truthful report about the impact of air pollution conducted from Mexico teachers was that, they said when children there draw the sky they rarely use color blue (“18 Facts About Air Pollution,” 2009). From here, we can imagine how serious is the place being polluted. Aside from this, the impacts of air pollution to human health are also critical. It contributes to headaches, reduced mentality, heart attack, cardiovascular diseases, impaired fetal development, cancer, and even death (Beate & Michelle, 2008). Moreover, there was also research explains that pregnant women who exposed under polluted area would have high risk of adverse birth outcome which includes low birth weight, preterm delivery, and heart defects to the baby and there are almost 4.6 million people die each because of the air pollution. Along with harming human health, air pollution also causes several environmental effects such as acid rain, which damages forest and causes water bodies to be acidic, making these habitats unsuitable for fishes and other animals, as well as decaying the buildings, sculpture, and statues that are part of human property; ozone depletion, which increased amount of UV radiation to the Earth that is harmful to human skin; global warming, a