For people with asthma and COPD, poor air quality can make symptoms like coughing and wheezing worse. The AQI (air quality index) reports levels of ozone, particle pollution, and other common air pollutants on the same scalethe higher the AQI rating, the greater the health impact. The AQI is divided into color-coded categories; the categories are intended to convey information about how air quality within each category relates to public health.

Fresh Air is available now at the iTunes Store (https://appsto.re/us/aTxM6.i) for $0.99 and you can read more about it at http://fresh-air-app.com.