Air Quality in New York

New York has 29 counties with EPA air quality monitoring. Air quality is generally improving across the state, with an average of 292 "Good" days per county per year. The best air quality is in Oneida (median AQI 27) and the most polluted is Queens (median AQI 45).

County	Median AQI	Max AQI	Good Days	Unhealthy Days	Trend	Top Pollutant
Albany	36	105	280	1	→ stable	Ozone
Bronx	42	150	246	2	→ stable	PM2.5
Chautauqua	36	105	326	1	→ stable	Ozone
Dutchess	35	151	338	5	→ stable	Ozone
Erie	43	105	234	1	→ stable	PM2.5
Essex	41	80	310	0	→ stable	Ozone
Franklin	31	49	177	0	↓ improving	Ozone
Hamilton	33	74	340	0	→ stable	Ozone
Herkimer	29	45	185	0	↓ improving	Ozone
Jefferson	32	80	352	0	→ stable	Ozone
Kings	39	98	253	0	→ stable	PM2.5
Monroe	38	90	271	0	→ stable	PM2.5
Nassau	31	71	308	0	→ stable	PM2.5
New York	43	150	241	3	↓ improving	PM2.5
Niagara	34	105	277	1	→ stable	Ozone
Oneida	27	68	300	0	→ stable	PM2.5
Onondaga	35	84	317	0	→ stable	Ozone
Orange	28	79	297	0	↓ improving	PM2.5
Oswego	32	61	353	0	→ stable	Ozone
Putnam	33	136	335	7	→ stable	Ozone
Queens	45	112	224	2	→ stable	PM2.5
Richmond	38	140	280	3	→ stable	PM2.5
Rockland	37	150	308	5	→ stable	Ozone
Saratoga	32	84	334	0	→ stable	Ozone
Steuben	37	68	321	0	→ stable	Ozone
Suffolk	38	133	291	6	→ stable	Ozone
Tompkins	35	71	340	0	→ stable	Ozone
Wayne	33	87	339	0	→ stable	Ozone
Westchester	36	143	302	6	→ stable	Ozone