Air Pollution and Health (II)

air pollution and healthIn recent years there has been an increase in the incidence of allergies (overreaction of the immune system to an allergen or stuff your body as harmful, such as dust, pollen or animal hair) in the respiratory tract such as rhinitis (itching nose, mouth, throat and eyes, sneezing, runny nose, headache, cough, fever) and asthma (inflammation of the bronchi that prevents proper breathing, manifested by cough and sometimes produces asphyxia).

This is due, according to experts, a combination of heredity and pollution, in particular, statistical studies show a direct relationship between increased environmental sulfur dioxide and the presence of these diseases in the bronchial tree.

The smog, also called smog, is the most famous air pollution, occurs when chemical compounds emitted by factory smokestacks and automobiles combine with moisture in the air. This type of steam as a mist is floating in the air and descends only through the rain, however, this fact and the combination of gas clouds resulting in acid rain that poisons lakes and animals that live in them, while damage to plants, disturbs the soil and harm the health of humans.

Lead is the most dangerous component of smog for the brain, it builds up gradually making the person becomes less reflective, altering its ability to concentrate and provoking aggressive behavior. Studies conducted in children with high levels of mercury in the blood (known as lead poisoning problem) show that school performance is lower due to a lower IQ and learning difficulties.

The smog also causes problems in the circulatory system. A study in England found that 1 in 50 heart failure patients treated in hospitals in London could have been affected by toxic gases. The researchers said many deaths could be prevented by better control of pollutants, in particular the gases generated by vehicles.

Finally, we mention that the excess carbon dioxide, a pollutant result of burning coal, wood and petroleum products, is responsible for the greenhouse effect, a phenomenon that raises the temperature of the planet because this allowed gas light energy and heat from the sun, but not its dissipation at night, which has caused serious climatic changes with consequences yet to quantify both the ecosystem and the health of humans.

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