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 | 20.7 | 20.3 | 19.8 | 19.1 | 18.8 | 18.6 | 18.4 | 18.2 | 17.8 | 17.2 | 17.3 | 17.4 | 16.9 | 16.5 | 16.1 | 15.8 | 15.6 | 14.8 | 13 | 11.6 | 10.3 | 8.9 | 7.3 | 6 |
Portland Metro | Tualatin Bradbury Court | ppb | 18.6 | 18.4 | 18.3 | 17.7 | 16.9 | 16 | 15.7 | 14.7 | 13.8 | 12.7 | 12.3 | 12 | 11.9 | 11.9 | 11.9 | 13.1 | 13.5 | 12.9 | 11.6 | 10.2 | 8.9 | 8.1 | 7.2 | 5.5 |