Bad Air Days in Georgetown County, South Carolina: 0 a Year
0 bad air days a year
Rare: among the cleanest-air counties EPA monitors. Ranked 983 of 996 monitored counties, where 1 is worst.
What actually helps here
- Bad air days are rare here. A standard furnace filter is enough; no purifier needed for outdoor air.
- On the odd bad day, check AirNow and keep windows shut.
The worst days on file
In 2000 to 2009 this county averaged under 1 bad days a year; in 2016 to 2025, 0. Not much has changed.
| Date | AQI | Main pollutant |
|---|---|---|
| 2017-01-31 | 63 | PM10 |
| 2016-11-11 | 62 | PM10 |
| 2016-03-01 | 55 | PM10 |
| 2016-02-29 | 54 | PM10 |
| 2019-03-15 | 52 | PM10 |
Most days, not the worst ones
Across 1,034 monitored days from 2016 to 2019, the air in Georgetown County rated Good on 100% of them, more often than the 72% typical of monitored counties, and Moderate on 0%. The median day sat at AQI 15; one day in ten went above 28.
The pollutant setting the AQI on an ordinary day here:
- coarse dust (PM10)100%1,034 days
Every recent year on file
| Year | Days monitored | Good | Moderate | Over 100 | Over 150 | Median AQI | Highest AQI |
|---|---|---|---|---|---|---|---|
| 2019 | 92 | 91 | 1 | 0 | 0 | 14 | 52 |
| 2018 | 326 | 326 | 0 | 0 | 0 | 15 | 44 |
| 2017 | 304 | 303 | 1 | 0 | 0 | 15 | 63 |
| 2016 | 312 | 309 | 3 | 0 | 0 | 16 | 62 |
| 2015 | 274 | 272 | 2 | 0 | 0 | 15 | 55 |
| 2014 | 343 | 341 | 2 | 0 | 0 | 17 | 53 |
| 2013 | 356 | 354 | 2 | 0 | 0 | 15 | 53 |
| 2012 | 343 | 343 | 0 | 0 | 0 | 17 | 47 |
| 2011 | 365 | 348 | 17 | 0 | 0 | 20 | 79 |
| 2010 | 364 | 340 | 24 | 0 | 0 | 22 | 85 |
Nearby counties on file
- Cherokee Countythin data
- York County2/yr
- Spartanburg County2/yr
- Richland County1/yr
- Colleton County1/yr
- Greenville County1/yr
- Charleston Countyunder 1/yr
- Chesterfield Countyunder 1/yr
How this is counted
A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day.