Region | Site | Units | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Portland Metro | Portland SE Lafayette | ppb | 24.6 | 26.6 | 28.5 | 29.1 | 28.6 | 27.1 | 25.7 | 24.6 | 24.2 | 24.6 | 25.3 | 26.3 | 27.8 | 29.7 | 31.7 | 33 | 33.1 | 33.1 | 32.9 | 32.8 | 32.5 | 31.2 | 29.2 | 28.1 |
Portland Metro | Tualatin Bradbury Court | ppb | 24.2 | 26 | 27.4 | 28.1 | 27.9 | 26.1 | 24.1 | 22.9 | 22.4 | 22.5 | 23 | 23.6 | 24.6 | 26.2 | 28.1 | 28.7 | 27.9 | 26 | 24 | 22.9 | 21.6 | 21.1 | 20.4 | 19.6 |