Daily Air Quality Index summaries from EPA monitors in Fulton, Georgia, 1980–2025.
54%
Good days in 2025
49
Median daily AQI, 2025
4
Days above 100 in 2025
365
Days with an AQI in 2025 (of 365)
In 2025, EPA reported a daily Air Quality Index (AQI) for Fulton, Georgia on 365 days. 198 of those days (54%) were in the Good range, and the median daily AQI was 49. That median is higher than the typical monitored county in Georgia (median 46 across 25 counties), and higher than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 239 days. Across the years with fuller monitoring, the share of Good days fell: an average of 72% in 1980–1982 versus 49% in 2023–2025.
How the days broke down each year
Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.
Good
Moderate
Unhealthy for Sensitive Groups
Unhealthy
Very Unhealthy
Hazardous
Typical and high-end AQI over time
The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.
Median daily AQI
90th-percentile daily AQI
Main pollutant by day, 2025
On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.
Pollutant
Days as main pollutant
Share of monitored days
Fine particles (PM2.5)
239
65%
Ozone
111
30%
Nitrogen dioxide (NO₂)
15
4%
Year-by-year data
Annual AQI summary by year
Year
Days with AQI
Good
Moderate
Unhealthy for Sensitive Groups
Unhealthy
Very Unhealthy
Hazardous
Median AQI
90th pct.
Max AQI
Main pollutant
2025
365
198
163
4
0
0
0
49
64
129
PM2.5
2024
366
186
176
4
0
0
0
50
67
129
PM2.5
2023
365
155
198
10
2
0
0
53
71
172
PM2.5
2022
365
162
200
2
1
0
0
52
65
169
PM2.5
2021
365
147
214
4
0
0
0
53
71
150
PM2.5
2020
366
166
198
2
0
0
0
52
66
125
PM2.5
2019
365
122
236
6
1
0
0
55
74
172
PM2.5
2018
365
153
208
4
0
0
0
52
68
133
PM2.5
2017
365
123
236
6
0
0
0
55
71
136
PM2.5
2016
366
101
252
12
1
0
0
55
74
156
PM2.5
2015
365
113
242
8
2
0
0
55
74
172
PM2.5
2014
364
163
194
7
0
0
0
52
67
140
PM2.5
2013
365
199
163
2
1
0
0
47
66
177
PM2.5
2012
366
109
241
12
4
0
0
55
77
190
PM2.5
2011
365
117
222
23
3
0
0
56
93
169
PM2.5
2010
365
87
261
15
2
0
0
58
87
161
PM2.5
2009
365
70
284
8
3
0
0
59
80
172
PM2.5
2008
366
44
298
20
3
1
0
63
90
211
PM2.5
2007
365
39
279
31
14
2
0
67
109
221
PM2.5
2006
365
22
300
34
7
2
0
69
106
214
PM2.5
2005
365
45
277
38
4
1
0
64
105
209
PM2.5
2004
366
56
285
19
5
1
0
64
96
204
PM2.5
2003
365
66
269
25
4
1
0
62
97
202
PM2.5
2002
365
58
260
33
12
2
0
63
112
213
PM2.5
2001
365
51
273
34
7
0
0
66
105
195
PM2.5
2000
366
36
251
57
16
6
0
70
136
228
PM2.5
1999
365
55
215
43
38
14
0
72
164
236
PM2.5
1998
365
197
96
34
26
12
0
48
154
235
Ozone
1997
365
202
108
32
22
1
0
47
119
202
NO2
1996
366
181
142
22
17
4
0
51
105
210
NO2
1995
365
230
82
32
11
10
0
43
129
224
Ozone
1994
319
187
100
24
8
0
0
46
101
197
Ozone
1993
336
185
91
40
15
5
0
47
133
249
Ozone
1992
362
227
112
17
6
0
0
44
87
190
NO2
1991
365
270
89
6
0
0
0
41
66
129
NO2
1990
365
199
128
29
7
2
0
48
101
202
NO2
1989
365
200
141
19
5
0
0
48
90
174
NO2
1988
366
190
120
33
11
12
0
49
129
233
NO2
1987
365
193
121
34
13
4
0
50
119
227
NO2
1986
365
221
142
2
0
0
0
47
70
113
NO2
1985
355
243
109
3
0
0
0
43
65
104
NO2
1984
350
221
119
10
0
0
0
42
75
106
NO2
1983
365
216
138
11
0
0
0
44
81
125
CO
1982
364
300
63
1
0
0
0
31
57
135
CO
1981
343
274
67
1
1
0
0
33
60
151
CO
1980
366
197
153
13
1
2
0
47
83
233
CO
What this data can and can’t tell you
It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.
It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.
Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.
Counties in Georgia with a similar median AQI in 2025
