Table 6:
Seasonal hourly PM2.5 from the three monitors. Data shown from low-cost monitors are calibrated.
| Winter | Spring | Summer no wildfire |
Summer wildfire |
Fall | |
|---|---|---|---|---|---|
| PM2.5 (μg/m3) | PM2.5 (μg/m3) | PM2.5 (μg/m3) | PM2.5 (μg/m3) | PM2.5 (μg/m3) | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
| Range | Range | Range | Range | Range | |
| n (hours) | n (hours) | n (hours) | n (hours) | n (hours) | |
| BAM – Toppenish (all hours available) | 10.1 (7.4) −4.0 to 39 n=1,365 |
4.1 (3.8) −4.0 to 43 n=1,912 |
7.1 (4.9) −2.0 to 50.0 n=1,108 |
27.1 (34.3) −1.0 to 272.0 n=954 |
13.9 (8.6) −1.0 to 44.0 n=1,649 |
| Low-cost monitor – Toppenish (all hours available) | 10.0 (5.8) 1.5 to 33.5 n=1,470 |
4.1 (2.2) 1.1 to 14.0 n=1,096 |
6.0 (1.8) 3.0 to 18.3 n=444 |
12.8 (8.1) 3.7 to 43.0 n=356 |
13.9 (7.9) 2.6 to 32.1 n=1,638 |
| Low-cost monitor – Harrah (all hours available) | N/A | 3.7 (2.8) −0.0 to 27.1 n=2,208 |
5.9 (2.3) 1.8 to 17.3 n=1,119 |
25.7 (25.2) 2.6 to 168.2 n=927 |
12.0 (7.3) 1.5 to 40.9 n=1,642 |
| BAM – Toppenish (hours that coincide with the low-cost monitor in Toppenish) | 11.5 (8.2) –2.0 to 39.0 n=794 |
4.0 (3.1) −4.0 to 20.0 n=898 |
6.2 (4.1) −1.0 to 26.0 n=340 |
12.6 (8.4) 0.0 to 54.0 n=354 |
13.9 (8.6) −1.0 to 44.0 n=1,638 |
| Low-cost monitor – Toppenish (hours that coincide with the BAM) | 11.5 (6.4) 1.4 to 30.6 n=794 |
4.0 (2.1) 1.1 to 14.0 n=898 |
6.1 (1.9) 3.0 to 18.3 n=340 |
12.7 (8.0) 3.7 to 43.0 n=354 |
13.9 (7.9) 2.6 to 32.1 n=1,638 |