Air Quality in Mississippi

Mississippi has 11 counties with EPA air quality monitoring. Air quality is generally worsening across the state, with an average of 222 "Good" days per county per year. The best air quality is in Grenada (median AQI 36) and the most polluted is Hinds (median AQI 48).

County	Median AQI	Max AQI	Good Days	Unhealthy Days	Trend	Top Pollutant
Bolivar	44	98	243	0	↑ worsening	PM2.5
DeSoto	47	136	208	4	→ stable	PM2.5
Forrest	47	103	202	1	→ stable	PM2.5
Grenada	36	82	77	0	↓ improving	PM2.5
Hancock	43	87	245	0	↑ worsening	PM2.5
Harrison	44	157	239	5	→ stable	PM2.5
Hinds	48	96	203	0	→ stable	PM2.5
Jackson	44	97	236	0	↑ worsening	PM2.5
Lauderdale	36	51	242	0	→ stable	Ozone
Lee	41	87	216	0	→ stable	Ozone
Yalobusha	36	80	331	0	→ stable	Ozone