This forecast is for the pollutant: ozone (O3)
|DATE||DAY||FORECAST AQI||ACTUAL AQI|
|08 / 08 / 17||Tue||85||108|
|08 / 09 / 17||Wed||90||136|
|08 / 10 / 17||Thu||95||105|
|08 / 11 / 17||Fri||100||112|
|08 / 12 / 17||Sat||95||122|
|08 / 13 / 17||Sun||85||105|
|08 / 14 / 17||Mon||60||‘|
|08 / 15 / 17||Tue||60||‘|
|08 / 16 / 17||Wed||70||‘|
|08 / 17 / 17||Thu||80||‘|
|08 / 18 / 17||Fri||85||‘|
Temperatures will be in the 80’s this week in the foothills and ozone levels should be in the Moderate range this week.
This forecast will be updated on Friday, August 18 or sooner if necessary.
In October of 2015 the EPA modified the National Ambient Air Quality Standard (NAAQS) for ozone. The old standard was 75 ppb (8 hour average). The new standard is now 70 ppb (8 hour average). Since the AQI values are based on the NAAQS, that means the AQI values are going to be a little higher this year even if the ozone values are identical to last year. Hence, we are going to have more days in the Moderate range in 2016, and even more days in the Unhealthy for Sensitive Groups range.
You may or may not have noticed, but one of the things that is unique and special about my ozone AQI forecast is that unlike almost everybody else, I let you see what the forecast was. That allows the user an opportunity to see how accurate my forecast is (or is not). That is a feature I wish the weather web sites and other AQI forecasters would add to their web pages.For Western Nevada County only, check out Ozone Maps at http://www.sparetheair.com/
To check out PM2.5 data for both Eastern and Western Nevada County, click here. Be sure to set PM2.5 for the Parameter, and in Step 3 set the county to “Nevada”