Wordsmyth
In the Starting Line-Up
- Joined
- Aug 29, 2012
- Messages
- 3,637
- Reaction score
- 5,181
Registered Members experience this forum ad and noise-free.
CLICK HERE to Register for a free account and login for a smoother ad-free experience. It's easy, and only takes a few moments.When the AQI is in this range: | ..air quality conditions are: | ...as symbolized by this color: |
---|---|---|
Air Quality Index (AQI) Values | Levels of Health Concern | Colors |
0 to 50 | Good | Green |
51 to 100 | Moderate | Yellow |
101 to 150 | Unhealthy for Sensitive Groups | Orange |
151 to 200 | Unhealthy | Red |
201 to 300 | Very Unhealthy | Purple |
301 to 500 | Hazardous | Maroon |
A plague.
A dark cloud of smoke.
What's next? Locusts? Frogs?