It is common knowledge that air pollution often makes symptoms of respiratory conditions such as asthma much worse. According to recent research, being exposed to air pollution for the
long-term can actually make it extremely difficult to get asthma under control properly.

Air pollution and asthma is generally an unhealthy an unhealthy collaboration. New data from the Center for Disease Control and Prevention's 2011 files is not very promising for those with respiratory health issues.

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