Site

State

PM AQI* (ug/m3)

Fargo NW

ND

15

TRNP-NU

ND

11

Lake Ilo

ND

10

Bismarck Residential

ND

10

Hannover

ND

9

RYDER

ND

9

Beulah North

ND

9

Sandpoint U of I

ID

8

Sidney 201

MT

8

Pinehurst

ID

7