Daily Air Quality Index summaries from EPA monitors in Sumter, Georgia, 1988–2024.
93%
Good days in 2024
38
Median daily AQI, 2024
0
Days above 100 in 2024
244
Days with an AQI in 2024 (of 366)
In 2024, EPA reported a daily Air Quality Index (AQI) for Sumter, Georgia on 244 days. 228 of those days (93%) were in the Good range, and the median daily AQI was 38. That median is lower than the typical monitored county in Georgia (median 44 across 28 counties), and lower than the typical monitored U.S. county (41). The main pollutant was ozone on 244 days. Across the years with fuller monitoring, the share of Good days rose: an average of 71% in 1988–1992 versus 93% in 2022–2024.
EPA did not report an AQI for every day of 2024 here (244 of 366 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.
The most recent year with data for this county is 2024; EPA's files for 2025–2025 contain no row for it, which usually means its monitors stopped reporting.
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, 2024
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
Ozone
244
100%
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
2024
244
228
16
0
0
0
0
38
49
84
Ozone
2023
245
225
20
0
0
0
0
38
49
87
Ozone
2022
238
224
14
0
0
0
0
35
47
93
Ozone
2021
245
228
17
0
0
0
0
35
49
74
Ozone
2020
240
237
3
0
0
0
0
32
44
64
Ozone
2019
238
211
27
0
0
0
0
39
54
97
Ozone
2018
241
219
22
0
0
0
0
34
50
80
Ozone
2017
241
229
12
0
0
0
0
35
47
67
Ozone
2016
245
218
26
1
0
0
0
39
54
101
Ozone
2015
245
236
8
1
0
0
0
34
48
129
Ozone
2014
244
229
15
0
0
0
0
38
49
77
Ozone
2013
245
232
13
0
0
0
0
36
48
80
Ozone
2012
233
204
29
0
0
0
0
40
54
97
Ozone
2011
232
171
61
0
0
0
0
44
71
100
Ozone
2010
234
189
43
2
0
0
0
42
64
108
Ozone
2009
232
220
12
0
0
0
0
35
48
74
Ozone
2008
228
180
46
2
0
0
0
40
77
105
Ozone
2007
237
155
74
8
0
0
0
46
80
143
Ozone
2006
243
153
80
9
1
0
0
47
87
156
Ozone
2005
244
175
65
4
0
0
0
42
80
140
Ozone
2004
237
177
58
2
0
0
0
42
71
112
Ozone
2003
210
159
45
5
1
0
0
39
77
151
Ozone
2002
220
175
43
1
1
0
0
39
67
156
Ozone
2001
243
163
53
26
1
0
0
45
105
154
Ozone
2000
245
128
74
38
5
0
0
50
108
187
Ozone
1999
206
113
63
28
2
0
0
49
108
159
Ozone
1998
213
135
61
16
1
0
0
47
93
161
Ozone
1997
206
126
65
13
2
0
0
45
93
174
Ozone
1994
364
311
42
10
1
0
0
35
61
164
Ozone
1993
358
261
80
17
0
0
0
41
87
150
Ozone
1992
338
252
71
13
2
0
0
38
80
166
Ozone
1991
285
224
49
10
2
0
0
38
67
166
Ozone
1988
271
165
59
41
6
0
0
45
119
190
Ozone
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 2024
