EnviroNearby

Rockdale County, Georgia air quality history

Daily Air Quality Index summaries from EPA monitors in Rockdale, Georgia, 1980–2025.

95%
Good days in 2025
36
Median daily AQI, 2025
0
Days above 100 in 2025
242
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Rockdale, Georgia on 242 days. 229 of those days (95%) were in the Good range, and the median daily AQI was 36. That median is lower than the typical monitored county in Georgia (median 46 across 25 counties), and lower than the typical monitored U.S. county (40). The main pollutant was ozone on 242 days. Across the years with fuller monitoring, the share of Good days rose: an average of 71% in 1980–1982 versus 90% in 2023–2025.

EPA did not report an AQI for every day of 2025 here (242 of 365 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.

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.

Share of monitored days in each AQI category, by year0%25%50%75%100%1980: Good 132 of 152 days1980: Moderate 17 of 152 days1980: Unhealthy for Sensitive Groups 2 of 152 days1980: Unhealthy 1 of 152 days19801981: Good 189 of 271 days1981: Moderate 41 of 271 days1981: Unhealthy for Sensitive Groups 21 of 271 days1981: Unhealthy 16 of 271 days1981: Very Unhealthy 4 of 271 days1982: Good 115 of 200 days1982: Moderate 48 of 200 days1982: Unhealthy for Sensitive Groups 30 of 200 days1982: Unhealthy 7 of 200 days1983: Good 111 of 197 days1983: Moderate 42 of 197 days1983: Unhealthy for Sensitive Groups 14 of 197 days1983: Unhealthy 17 of 197 days1983: Very Unhealthy 13 of 197 days1984: Good 149 of 246 days1984: Moderate 50 of 246 days1984: Unhealthy for Sensitive Groups 30 of 246 days1984: Unhealthy 12 of 246 days1984: Very Unhealthy 5 of 246 days1985: Good 177 of 262 days1985: Moderate 52 of 262 days1985: Unhealthy for Sensitive Groups 19 of 262 days1985: Unhealthy 10 of 262 days1985: Very Unhealthy 4 of 262 days19851986: Good 156 of 274 days1986: Moderate 55 of 274 days1986: Unhealthy for Sensitive Groups 39 of 274 days1986: Unhealthy 19 of 274 days1986: Very Unhealthy 5 of 274 days1987: Good 124 of 256 days1987: Moderate 71 of 256 days1987: Unhealthy for Sensitive Groups 40 of 256 days1987: Unhealthy 15 of 256 days1987: Very Unhealthy 6 of 256 days1988: Good 145 of 253 days1988: Moderate 54 of 253 days1988: Unhealthy for Sensitive Groups 30 of 253 days1988: Unhealthy 20 of 253 days1988: Very Unhealthy 4 of 253 days1989: Good 156 of 262 days1989: Moderate 68 of 262 days1989: Unhealthy for Sensitive Groups 27 of 262 days1989: Unhealthy 10 of 262 days1989: Very Unhealthy 1 of 262 days1990: Good 120 of 263 days1990: Moderate 70 of 263 days1990: Unhealthy for Sensitive Groups 44 of 263 days1990: Unhealthy 18 of 263 days1990: Very Unhealthy 11 of 263 days19901991: Good 154 of 273 days1991: Moderate 68 of 273 days1991: Unhealthy for Sensitive Groups 33 of 273 days1991: Unhealthy 17 of 273 days1991: Very Unhealthy 1 of 273 days1992: Good 168 of 273 days1992: Moderate 67 of 273 days1992: Unhealthy for Sensitive Groups 23 of 273 days1992: Unhealthy 15 of 273 days1993: Good 122 of 263 days1993: Moderate 75 of 263 days1993: Unhealthy for Sensitive Groups 40 of 263 days1993: Unhealthy 19 of 263 days1993: Very Unhealthy 7 of 263 days1994: Good 201 of 297 days1994: Moderate 65 of 297 days1994: Unhealthy for Sensitive Groups 22 of 297 days1994: Unhealthy 7 of 297 days1994: Very Unhealthy 2 of 297 days1995: Good 238 of 364 days1995: Moderate 74 of 364 days1995: Unhealthy for Sensitive Groups 30 of 364 days1995: Unhealthy 17 of 364 days1995: Very Unhealthy 5 of 364 days19951996: Good 254 of 360 days1996: Moderate 64 of 360 days1996: Unhealthy for Sensitive Groups 28 of 360 days1996: Unhealthy 13 of 360 days1996: Very Unhealthy 1 of 360 days1997: Good 233 of 339 days1997: Moderate 63 of 339 days1997: Unhealthy for Sensitive Groups 21 of 339 days1997: Unhealthy 13 of 339 days1997: Very Unhealthy 9 of 339 days1998: Good 227 of 362 days1998: Moderate 61 of 362 days1998: Unhealthy for Sensitive Groups 38 of 362 days1998: Unhealthy 29 of 362 days1998: Very Unhealthy 7 of 362 days1999: Good 240 of 363 days1999: Moderate 47 of 363 days1999: Unhealthy for Sensitive Groups 37 of 363 days1999: Unhealthy 24 of 363 days1999: Very Unhealthy 15 of 363 days2000: Good 283 of 361 days2000: Moderate 47 of 361 days2000: Unhealthy for Sensitive Groups 20 of 361 days2000: Unhealthy 9 of 361 days2000: Very Unhealthy 2 of 361 days20002001: Good 276 of 365 days2001: Moderate 63 of 365 days2001: Unhealthy for Sensitive Groups 22 of 365 days2001: Unhealthy 3 of 365 days2001: Very Unhealthy 1 of 365 days2002: Good 269 of 357 days2002: Moderate 53 of 357 days2002: Unhealthy for Sensitive Groups 25 of 357 days2002: Unhealthy 8 of 357 days2002: Very Unhealthy 2 of 357 days2003: Good 283 of 363 days2003: Moderate 54 of 363 days2003: Unhealthy for Sensitive Groups 25 of 363 days2003: Unhealthy 1 of 363 days2004: Good 283 of 366 days2004: Moderate 63 of 366 days2004: Unhealthy for Sensitive Groups 15 of 366 days2004: Unhealthy 5 of 366 days2005: Good 262 of 358 days2005: Moderate 67 of 358 days2005: Unhealthy for Sensitive Groups 25 of 358 days2005: Unhealthy 4 of 358 days20052006: Good 248 of 355 days2006: Moderate 76 of 355 days2006: Unhealthy for Sensitive Groups 21 of 355 days2006: Unhealthy 9 of 355 days2006: Very Unhealthy 1 of 355 days2007: Good 264 of 364 days2007: Moderate 73 of 364 days2007: Unhealthy for Sensitive Groups 18 of 364 days2007: Unhealthy 8 of 364 days2007: Very Unhealthy 1 of 364 days2008: Good 269 of 366 days2008: Moderate 74 of 366 days2008: Unhealthy for Sensitive Groups 19 of 366 days2008: Unhealthy 3 of 366 days2008: Very Unhealthy 1 of 366 days2009: Good 301 of 352 days2009: Moderate 48 of 352 days2009: Unhealthy for Sensitive Groups 2 of 352 days2009: Unhealthy 1 of 352 days2010: Good 285 of 363 days2010: Moderate 68 of 363 days2010: Unhealthy for Sensitive Groups 10 of 363 days20102011: Good 249 of 364 days2011: Moderate 81 of 364 days2011: Unhealthy for Sensitive Groups 33 of 364 days2011: Unhealthy 1 of 364 days2012: Good 282 of 361 days2012: Moderate 64 of 361 days2012: Unhealthy for Sensitive Groups 13 of 361 days2012: Unhealthy 2 of 361 days2013: Good 333 of 364 days2013: Moderate 27 of 364 days2013: Unhealthy for Sensitive Groups 4 of 364 days2014: Good 309 of 363 days2014: Moderate 47 of 363 days2014: Unhealthy for Sensitive Groups 7 of 363 days2015: Good 319 of 364 days2015: Moderate 42 of 364 days2015: Unhealthy for Sensitive Groups 3 of 364 days20152016: Good 179 of 240 days2016: Moderate 52 of 240 days2016: Unhealthy for Sensitive Groups 9 of 240 days2017: Good 212 of 243 days2017: Moderate 30 of 243 days2017: Unhealthy for Sensitive Groups 1 of 243 days2018: Good 200 of 243 days2018: Moderate 41 of 243 days2018: Unhealthy for Sensitive Groups 2 of 243 days2019: Good 186 of 241 days2019: Moderate 50 of 241 days2019: Unhealthy for Sensitive Groups 5 of 241 days2020: Good 232 of 244 days2020: Moderate 12 of 244 days20202021: Good 216 of 243 days2021: Moderate 27 of 243 days2022: Good 214 of 243 days2022: Moderate 29 of 243 days2023: Good 207 of 242 days2023: Moderate 31 of 242 days2023: Unhealthy for Sensitive Groups 4 of 242 days2024: Good 218 of 244 days2024: Moderate 24 of 244 days2024: Unhealthy for Sensitive Groups 2 of 244 days2025: Good 229 of 242 days2025: Moderate 13 of 242 days2025
  • 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 and 90th-percentile daily AQI, by year0501001502001980: 90th percentile AQI 541981: 90th percentile AQI 1261982: 90th percentile AQI 1291983: 90th percentile AQI 1741984: 90th percentile AQI 1291985: 90th percentile AQI 1121986: 90th percentile AQI 1431987: 90th percentile AQI 1471988: 90th percentile AQI 1431989: 90th percentile AQI 1121990: 90th percentile AQI 1561991: 90th percentile AQI 1331992: 90th percentile AQI 1151993: 90th percentile AQI 1501994: 90th percentile AQI 1011995: 90th percentile AQI 1191996: 90th percentile AQI 1151997: 90th percentile AQI 1291998: 90th percentile AQI 1501999: 90th percentile AQI 1562000: 90th percentile AQI 932001: 90th percentile AQI 872002: 90th percentile AQI 1002003: 90th percentile AQI 902004: 90th percentile AQI 802005: 90th percentile AQI 972006: 90th percentile AQI 1002007: 90th percentile AQI 932008: 90th percentile AQI 872009: 90th percentile AQI 582010: 90th percentile AQI 672011: 90th percentile AQI 972012: 90th percentile AQI 712013: 90th percentile AQI 492014: 90th percentile AQI 582015: 90th percentile AQI 512016: 90th percentile AQI 802017: 90th percentile AQI 542018: 90th percentile AQI 612019: 90th percentile AQI 672020: 90th percentile AQI 462021: 90th percentile AQI 542022: 90th percentile AQI 542023: 90th percentile AQI 612024: 90th percentile AQI 512025: 90th percentile AQI 481980: Median AQI 281981: Median AQI 381982: Median AQI 451983: Median AQI 471984: Median AQI 451985: Median AQI 431986: Median AQI 481987: Median AQI 511988: Median AQI 461989: Median AQI 471990: Median AQI 581991: Median AQI 471992: Median AQI 441993: Median AQI 541994: Median AQI 431995: Median AQI 391996: Median AQI 391997: Median AQI 381998: Median AQI 371999: Median AQI 342000: Median AQI 352001: Median AQI 362002: Median AQI 332003: Median AQI 332004: Median AQI 352005: Median AQI 352006: Median AQI 382007: Median AQI 362008: Median AQI 362009: Median AQI 292010: Median AQI 362011: Median AQI 382012: Median AQI 362013: Median AQI 312014: Median AQI 342015: Median AQI 312016: Median AQI 442017: Median AQI 392018: Median AQI 362019: Median AQI 432020: Median AQI 342021: Median AQI 392022: Median AQI 392023: Median AQI 402024: Median AQI 392025: Median AQI 361980198519901995200020052010201520202025
  • 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.

PollutantDays as main pollutantShare of monitored days
Ozone242100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025242229130000364890Ozone
20242442182420003951115Ozone
20232422073140004061136Ozone
2022243214290000395490Ozone
2021243216270000395493Ozone
2020244232120000344677Ozone
20192411865050004367129Ozone
20182432004120003661112Ozone
20172432123010003954126Ozone
20162401795290004480140Ozone
20153643194230003151136Ozone
20143633094770003458150Ozone
20133643332740003149108Ozone
201236128264132003671179Ozone
201136424981331003897164Ozone
201036328568100003667150Ozone
20093523014821002958154Ozone
200836626974193103687203Ozone
200736426473188103693207Ozone
2006355248762191038100203Ozone
200535826267254003597182Ozone
200436628363155003580192Ozone
200336328354251003390156Ozone
2002357269532582033100215Ozone
200136527663223103687203Ozone
200036128347209203593212Ozone
199936324047372415034156225Ozone
19983622276138297037150216Ozone
19973392336321139038129225Ozone
19963602546428131039115218Ozone
19953642387430175039119229Ozone
1994297201652272043101205Ozone
19932631227540197054150214Ozone
19922731686723150044115200Ozone
19912731546833171047133203Ozone
199026312070441811058156244Ozone
19892621566827101047112204Ozone
19882531455430204046143251Ozone
19872561247140156051147222Ozone
19862741565539195048143228Ozone
19852621775219104043112209Ozone
19842461495030125045129230Ozone
198319711142141713047174245Ozone
1982200115483070045129192Ozone
19812711894121164038126233Ozone
19801521321721002854197Ozone

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

All monitored counties in Georgia

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem