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Monitoring Total Particulate Matter

We measure the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air.

Raw 24-Hour Averages Data for Old White Rock Fire Station

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24-hour averages provide an indication of the current air concentrations.

They can be compared to the EPA standards of 35 µg/m3 (PM 2.5) and 150 µg/m3 (PM 10)
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PM 10 data are not currently available.

PM 2.5: 0.575416666666668 µg/m3 on Saturday, January 31, 2015 6:30 PM PM 2.5: 0.527708333333334 µg/m3 on Saturday, January 31, 2015 6:00 PM PM 2.5: 0.517291666666668 µg/m3 on Saturday, January 31, 2015 5:30 PM PM 2.5: 0.492500000000001 µg/m3 on Saturday, January 31, 2015 5:00 PM PM 2.5: 0.478125000000001 µg/m3 on Saturday, January 31, 2015 4:30 PM PM 2.5: 0.459583333333334 µg/m3 on Saturday, January 31, 2015 4:00 PM PM 2.5: 0.459583333333334 µg/m3 on Saturday, January 31, 2015 3:30 PM PM 2.5: 0.449375000000001 µg/m3 on Saturday, January 31, 2015 3:00 PM PM 2.5: 0.447500000000001 µg/m3 on Saturday, January 31, 2015 2:30 PM PM 2.5: 0.447500000000001 µg/m3 on Saturday, January 31, 2015 2:00 PM PM 2.5: 0.447500000000001 µg/m3 on Saturday, January 31, 2015 1:30 PM PM 2.5: 0.447500000000001 µg/m3 on Saturday, January 31, 2015 1:00 PM PM 2.5: 0.451458333333334 µg/m3 on Saturday, January 31, 2015 12:30 PM PM 2.5: 0.441041666666668 µg/m3 on Saturday, January 31, 2015 12:00 PM PM 2.5: 0.463750000000001 µg/m3 on Saturday, January 31, 2015 11:30 AM PM 2.5: 0.465833333333334 µg/m3 on Saturday, January 31, 2015 11:00 AM PM 2.5: 0.473958333333334 µg/m3 on Saturday, January 31, 2015 10:30 AM PM 2.5: 0.502916666666667 µg/m3 on Saturday, January 31, 2015 10:00 AM PM 2.5: 0.523750000000001 µg/m3 on Saturday, January 31, 2015 9:30 AM PM 2.5: 0.529791666666667 µg/m3 on Saturday, January 31, 2015 9:00 AM PM 2.5: 0.529791666666667 µg/m3 on Saturday, January 31, 2015 8:30 AM PM 2.5: 0.540000000000001 µg/m3 on Saturday, January 31, 2015 8:00 AM PM 2.5: 0.540000000000001 µg/m3 on Saturday, January 31, 2015 7:30 AM PM 2.5: 0.540000000000001 µg/m3 on Saturday, January 31, 2015 7:00 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 6:30 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 6:00 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 5:30 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 5:00 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 4:30 AM PM 2.5: 0.54 µg/m3 on Saturday, January 31, 2015 4:00 AM PM 2.5: 0.629375 µg/m3 on Saturday, January 31, 2015 3:30 AM PM 2.5: 0.629375 µg/m3 on Saturday, January 31, 2015 3:00 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 2:30 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 2:00 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 1:30 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 1:00 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 12:30 AM PM 2.5: 0.1 µg/m3 on Saturday, January 31, 2015 12:00 AM PM 2.5: 0.2 µg/m3 on Friday, January 30, 2015 11:30 PM PM 2.5: 0.2 µg/m3 on Friday, January 30, 2015 11:00 PM PM 2.5: 0.564375 µg/m3 on Friday, January 30, 2015 10:30 PM PM 2.5: 0.502083333333333 µg/m3 on Friday, January 30, 2015 10:00 PM PM 2.5: 0.441875 µg/m3 on Friday, January 30, 2015 9:30 PM PM 2.5: 0.483333333333333 µg/m3 on Friday, January 30, 2015 9:00 PM PM 2.5: 0.491458333333333 µg/m3 on Friday, January 30, 2015 8:30 PM PM 2.5: 0.56 µg/m3 on Friday, January 30, 2015 8:00 PM PM 2.5: 0.557916666666667 µg/m3 on Friday, January 30, 2015 7:30 PM PM 2.5: 0.5225 µg/m3 on Friday, January 30, 2015 7:00 PM PM 2.5: 0.1 µg/m3 on Friday, January 30, 2015 6:30 PM PM 2.5: 0.1 µg/m3 on Friday, January 30, 2015 6:00 PM PM 2.5: 0.1 µg/m3 on Friday, January 30, 2015 5:30 PM PM 2.5: 0.1 µg/m3 on Friday, January 30, 2015 5:00 PM PM 2.5: 0.2 µg/m3 on Friday, January 30, 2015 4:30 PM PM 2.5: 0.2 µg/m3 on Friday, January 30, 2015 4:00 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 3:30 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 3:00 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 2:30 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 2:00 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 1:30 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 1:00 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 12:30 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 12:00 PM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 11:30 AM PM 2.5: 0.3 µg/m3 on Friday, January 30, 2015 11:00 AM PM 2.5: 0.4 µg/m3 on Friday, January 30, 2015 10:30 AM PM 2.5: 0.4 µg/m3 on Friday, January 30, 2015 10:00 AM PM 2.5: 0.5 µg/m3 on Friday, January 30, 2015 9:30 AM PM 2.5: 0.5 µg/m3 on Friday, January 30, 2015 9:00 AM PM 2.5: 0.6 µg/m3 on Friday, January 30, 2015 8:30 AM PM 2.5: 0.6 µg/m3 on Friday, January 30, 2015 8:00 AM PM 2.5: 0.8 µg/m3 on Friday, January 30, 2015 7:30 AM PM 2.5: 0.8 µg/m3 on Friday, January 30, 2015 7:00 AM PM 2.5: 0.9 µg/m3 on Friday, January 30, 2015 6:30 AM PM 2.5: 0.9 µg/m3 on Friday, January 30, 2015 6:00 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 5:30 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 5:00 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 4:30 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 4:00 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 3:30 AM PM 2.5: 1 µg/m3 on Friday, January 30, 2015 3:00 AM PM 2.5: 1.2 µg/m3 on Friday, January 30, 2015 2:30 AM PM 2.5: 1.2 µg/m3 on Friday, January 30, 2015 2:00 AM PM 2.5: 1.3 µg/m3 on Friday, January 30, 2015 1:30 AM PM 2.5: 1.3 µg/m3 on Friday, January 30, 2015 1:00 AM PM 2.5: 1.4 µg/m3 on Friday, January 30, 2015 12:30 AM PM 2.5: 1.4 µg/m3 on Friday, January 30, 2015 12:00 AM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 11:30 PM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 11:00 PM PM 2.5: 1.6 µg/m3 on Thursday, January 29, 2015 10:30 PM PM 2.5: 1.6 µg/m3 on Thursday, January 29, 2015 10:00 PM PM 2.5: 1.8 µg/m3 on Thursday, January 29, 2015 9:30 PM PM 2.5: 1.8 µg/m3 on Thursday, January 29, 2015 9:00 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 8:30 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 8:00 PM PM 2.5: 2.1 µg/m3 on Thursday, January 29, 2015 7:30 PM PM 2.5: 2.1 µg/m3 on Thursday, January 29, 2015 7:00 PM PM 2.5: 2.1 µg/m3 on Thursday, January 29, 2015 6:30 PM PM 2.5: 2.1 µg/m3 on Thursday, January 29, 2015 6:00 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 5:30 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 5:00 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 4:30 PM PM 2.5: 2 µg/m3 on Thursday, January 29, 2015 4:00 PM PM 2.5: 1.9 µg/m3 on Thursday, January 29, 2015 3:30 PM PM 2.5: 1.9 µg/m3 on Thursday, January 29, 2015 3:00 PM PM 2.5: 1.8 µg/m3 on Thursday, January 29, 2015 2:30 PM PM 2.5: 1.8 µg/m3 on Thursday, January 29, 2015 2:00 PM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 1:30 PM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 1:00 PM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 12:30 PM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 12:00 PM PM 2.5: 1.6 µg/m3 on Thursday, January 29, 2015 11:30 AM PM 2.5: 1.6 µg/m3 on Thursday, January 29, 2015 11:00 AM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 10:30 AM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 10:00 AM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 9:30 AM PM 2.5: 1.7 µg/m3 on Thursday, January 29, 2015 9:00 AM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 8:30 AM PM 2.5: 1.5 µg/m3 on Thursday, January 29, 2015 8:00 AM PM 2.5: 1.4 µg/m3 on Thursday, January 29, 2015 7:30 AM PM 2.5: 1.4 µg/m3 on Thursday, January 29, 2015 7:00 AM PM 2.5: 1.3 µg/m3 on Thursday, January 29, 2015 6:30 AM PM 2.5: 1.3 µg/m3 on Thursday, January 29, 2015 6:00 AM PM 2.5: 1.3 µg/m3 on Thursday, January 29, 2015 5:30 AM PM 2.5: 1.3 µg/m3 on Thursday, January 29, 2015 5:00 AM PM 2.5: 1.2 µg/m3 on Thursday, January 29, 2015 4:30 AM PM 2.5: 1.2 µg/m3 on Thursday, January 29, 2015 4:00 AM PM 2.5: 1.1 µg/m3 on Thursday, January 29, 2015 3:30 AM PM 2.5: 1.1 µg/m3 on Thursday, January 29, 2015 3:00 AM PM 2.5: 1 µg/m3 on Thursday, January 29, 2015 2:30 AM PM 2.5: 1 µg/m3 on Thursday, January 29, 2015 2:00 AM PM 2.5: 0.9 µg/m3 on Thursday, January 29, 2015 1:30 AM PM 2.5: 0.9 µg/m3 on Thursday, January 29, 2015 1:00 AM PM 2.5: 0.9 µg/m3 on Thursday, January 29, 2015 12:30 AM PM 2.5: 0.9 µg/m3 on Thursday, January 29, 2015 12:00 AM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 11:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 11:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 10:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 10:00 PM PM 2.5: 0.6 µg/m3 on Wednesday, January 28, 2015 9:30 PM PM 2.5: 0.6 µg/m3 on Wednesday, January 28, 2015 9:00 PM PM 2.5: 0.6 µg/m3 on Wednesday, January 28, 2015 8:30 PM PM 2.5: 0.6 µg/m3 on Wednesday, January 28, 2015 8:00 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 7:30 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 7:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 6:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 6:00 PM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 5:30 PM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 5:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 4:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 4:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 3:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 3:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 2:30 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 2:00 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 1:30 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 1:00 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 12:30 PM PM 2.5: 0.7 µg/m3 on Wednesday, January 28, 2015 12:00 PM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 11:30 AM PM 2.5: 0.8 µg/m3 on Wednesday, January 28, 2015 11:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 10:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 10:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 9:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 9:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 8:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 8:00 AM PM 2.5: 1 µg/m3 on Wednesday, January 28, 2015 7:30 AM PM 2.5: 1 µg/m3 on Wednesday, January 28, 2015 7:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 6:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 6:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 5:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 5:00 AM PM 2.5: 1 µg/m3 on Wednesday, January 28, 2015 4:30 AM PM 2.5: 1 µg/m3 on Wednesday, January 28, 2015 4:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 3:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 3:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 2:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 2:00 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 1:30 AM PM 2.5: 0.9 µg/m3 on Wednesday, January 28, 2015 1:00 AM
Date & Time (MDT)PM 2.5 24-hour Average (µg/m3)PM 10 24-hour Average (µg/m3)
1/28/2015 1:00:05 AM 0.9
1/28/2015 1:30:05 AM 0.9
1/28/2015 2:00:05 AM 0.9
1/28/2015 2:30:05 AM 0.9
1/28/2015 3:00:05 AM 0.9
1/28/2015 3:30:05 AM 0.9
1/28/2015 4:00:05 AM 1
1/28/2015 4:30:05 AM 1
1/28/2015 5:00:05 AM 0.9
1/28/2015 5:30:05 AM 0.9
1/28/2015 6:00:05 AM 0.9
1/28/2015 6:30:05 AM 0.9
1/28/2015 7:00:05 AM 1
1/28/2015 7:30:05 AM 1
1/28/2015 8:00:05 AM 0.9
1/28/2015 8:30:05 AM 0.9
1/28/2015 9:00:05 AM 0.9
1/28/2015 9:30:05 AM 0.9
1/28/2015 10:00:05 AM 0.9
1/28/2015 10:30:05 AM 0.9
1/28/2015 11:00:05 AM 0.8
1/28/2015 11:30:05 AM 0.8
1/28/2015 12:00:05 PM 0.7
1/28/2015 12:30:05 PM 0.7
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