Smog

Smog is a type of air pollution. It’s a mixture of smoke and fog in the air. It is caused by a large amount of coal burning in an area, creating a mixture of smoke and sulfur dioxide.  Smog is harmful to humans and can cause a variety of health issues. “Ground-level ozone, sulfur dioxide, nitrogen dioxide carbon monoxide are especially harmful for senior citizens, children, and people with heart and lung conditions such as emphysema, bronchitis, and asthma.”

It can cause: inflame breathing passages, decreasing the lungs’ working capacity, and causing shortness of breath, pain when inhaling deeply, wheezing, coughing, eye and nose irritation and it dries out the protective membranes of the nose and throat and interferes with the body’s ability to fight infection, increasing susceptibility to illness.

Smog can occur in any climate where there are large amounts of pollution like in cities. Nevertheless, it is worse during the summer when it is warmer and sunnier such as in cities like New York, Los Angeles, Mexico City, or Beijing.

-Maria Miranda

http://www.sciencedaily.com/articles/s/smog.htm

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