Final answer:
Air pollution is linked to various serious health problems including respiratory and cardiovascular diseases, and cancer, but not to enhanced cognitive function.
Step-by-step explanation:
Various types of air pollution have been linked to a number of human health problems, but not to enhanced cognitive function. Instead, the health issues associated with air pollution include respiratory diseases such as asthma, bronchitis, and emphysema, which can be severe and sometimes lead to death. Cardiovascular diseases, including heart attack and stroke, as well as an increased risk of cancer, can also be a result of prolonged or intense exposure to polluted air.