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 | 22.7 | 20.7 | 17.4 | 14.3 | 11.9 | 9.5 | 8.2 | 6.4 | 4.4 | 3.6 | 5.3 | 8.1 | 10.8 | 13.6 | 16.4 | 19 | 21.4 | 23.3 | 23.5 | 23 | 22.8 | 22.4 | 21.9 | 21.3 |
Portland Metro | Tualatin Bradbury Court | ppb | 12.5 | 11 | 9.3 | 6.8 | 5.1 | 4.3 | 3.6 | 3 | 2.6 | 1.8 | 2.1 | 4 | 6.3 | 8.4 | 10.8 | 12.9 | 15.2 | 17.4 | 18.8 | 19.1 | 19.2 | 19.5 | 19 | 18.9 |