Bad Air Days in Franklin County, New York: 0 a Year
0 bad air days a year
Rare: among the cleanest-air counties EPA monitors. Ranked 968 of 996 monitored counties, where 1 is worst.
What to buy, and what not to
- 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 record for Franklin
In 2000 to 2009 this county averaged 3 bad days a year; in 2016 to 2025, 0. The air has improved.
| Date | AQI | Main pollutant |
|---|---|---|
| 2017-06-11 | 93 | Ozone |
| 2017-06-12 | 93 | Ozone |
| 2017-06-10 | 80 | Ozone |
| 2017-04-10 | 71 | Ozone |
| 2017-09-27 | 71 | Ozone |
An ordinary day in Franklin
Across 882 monitored days from 2016 to 2019, the air in Franklin County rated Good on 99% of them, more often than the 72% typical of monitored counties, and Moderate on 1%. The median day sat at AQI 25; one day in ten went above 40.
The pollutant setting the AQI on an ordinary day here:
- ozone65%574 days
- nitrogen dioxide35%308 days
Every recent year on file
| Year | Days monitored | Good | Moderate | Over 100 | Over 150 | Median AQI | Highest AQI |
|---|---|---|---|---|---|---|---|
| 2019 | 177 | 177 | 0 | 0 | 0 | 31 | 49 |
| 2017 | 345 | 337 | 8 | 0 | 0 | 26 | 93 |
| 2016 | 360 | 359 | 1 | 0 | 0 | 21 | 51 |
| 2015 | 334 | 318 | 12 | 4 | 0 | 26 | 119 |
| 2014 | 347 | 343 | 4 | 0 | 0 | 25 | 79 |
| 2013 | 347 | 339 | 7 | 1 | 0 | 24 | 129 |
| 2012 | 311 | 310 | 1 | 0 | 0 | 12 | 72 |
| 2011 | 360 | 355 | 4 | 1 | 0 | 12 | 104 |
| 2010 | 338 | 337 | 1 | 0 | 0 | 12 | 67 |
Nearby counties on file
- Suffolk County9/yr
- Queens County6/yr
- Westchester County5/yr
- Bronx County5/yr
- Richmond County5/yr
- New York County5/yr
- Rockland County3/yr
- Erie County3/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.