
#1SpearfishPM2.5 7.1~50 min drivesaves 1.0 cigs/wk
South Dakota· PM2.5 7.1 µg/m³
Northern Black Hills town at the mouth of a forested canyon, higher and cooler than the plains, with hotels and rentals.
30% cleaner than home — pack the car.
3.1 µg/m³ less fine-particle pollution than Rapid City right now
Observed Jul 27, 8:12 p.m. EDT
PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.






