Air Quality data field

Description

Data field to display air quality (PM2.5, particulate matter, not ozone) pulled from the EPA airNOW site, IQAir, or PurpleAir. It updates by default every twenty minutes. </p><p>The AQI value is color-coded according to the values on the EPA site. It also will beep when the value goes into the unhealthy range (red or greater).</p><p>Tapping the field switches between PM2.5 and ozone display, when present. PurpleAir doesn't return ozone, only PM2.5, but it does seem to update faster than the EPA site does.</p>