The correct answer to this question is C, Air Quality Index. This index is used daily to report air quality. The purpose of the report is to inform people of either how clean the air is or how polluted it is. It also gives information on the health effects that the air can have on a person.
Polluted air can be over a few hours or several days. There are five significant categories of pollution that air quality index has, which includes particle pollution, ground-level ozone, nitrogen dioxide, carbon monoxide, and sulfur dioxide. Each of these categories has standards that the EPA has in place.
Air quality index-the answer is c.the air quality index (aqi) is a brief, easy-to-read report of daily air quality. it tells you how clean or polluted your air is, and which associated health effects might be a concern for you. the aqi focuses on health effects you may experience within a few hours or days after breathing polluted air. the aqi reports on five major air pollutants, including ground-level ozone, particle pollution (extremely fine dust, also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. for each of these pollutants, epa has established national air quality standards to protect public health.