Today’s map of the day shows the average fine particulate matter by county from the year 2003 up until year 2011. From the map we can see higher levels of fine particulate matter in the southeast and midwest regions of the country.
National Community Mapping Institute
Today’s map of the day shows the average fine particulate matter by county from the year 2003 up until year 2011. From the map we can see higher levels of fine particulate matter in the southeast and midwest regions of the country.