MUNSTER | A report by the American Lung Association released Wednesday gave Northwest Indiana critical grades for its air quality.
The report looked at environmental factors such as high ozone days and particle pollution, according to a release from the association.
Northwest Indiana had an average of 8.5 days considered high ozone, which is up from last year's average of 5.2 days, according to the association. Lake County and Porter County received a C for ozone days. LaPorte County dropped from a C last year to an F.
The study reported that there were 6.3 days in Northwest Indiana with unhealthy particle pollution levels.
Lake County received an F in particle pollution doing the worst out of Porter and LaPorte counties, according to the release. Porter County received a C and LaPorte County received an A.
Overall, the region was ranked 31 out of 239 areas across the country with high ozone days, according to the release. Northwest Indiana was ranked the 16th most polluted area in the country.