Skip to main content
. 2022 Jul 12;10(7):387. doi: 10.3390/toxics10070387

Table 1.

Outdoor, indoor, and HEPA cage PM2.5 concentrations from 8 August–4 September 2021.

Outdoor PM2.5 (µg/m3) Indoor PM2.5 (µg/m3) HEPA Cage PM2.5 (µg/m3)
Sampling Days Mean (sd)
Min, Median, Max		 Mean (sd)
Min, Median, Max		 Mean (sd)
Min, Median, Max
All Study Days 28 26.2 (23.4)
6.4, 18.1, 92.6		 8.9 (6.9)
3.3, 6.7, 27.9		 3.1 (0.1)
2.6, 3.1, 3.2
Wildfire Day 12 45.0 (25.4)
23.3, 32.8, 92.6		 13.9 (8.1)
7.9, 9.7, 27.9		 3.0 (0.2)
2.6, 3.1, 3.2
Non-Wildfire Day 16 12.1 (4.3)
6.4, 11.2, 19.4		 5.2 (1.4)
3.3, 5.0, 7.3		 3.1 (0.1)
3.0, 3.1, 3.2

PM2.5 = fine particulate matter; sd = standard deviation; HEPA = high efficiency purified air; min = minimum; max = maximum. Wildfire Day = day with mean 24-h outdoor PM2.5 > 21 µg/m3 during wildfire season. Only sampling days with >12 h of hourly data for both indoor and outdoor PM2.5 are included in table.