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Liberty Lake Particulate Data 2007
Particulate Matter Concentrations in micrograms per cubic meter of air
| Date |
Fine PM (0-2.5µm) |
Coarse PM (2.5-10µm) |
PM10 (0-10µm) |
| 1/6/2007 |
1.39 |
4.32 |
5.71 |
| 1/12/2007 |
11.30 |
4.79 |
16.08 |
| 1/18/2007 |
9.03 |
3.43 |
12.46 |
| 1/24/2007 |
7.50 |
2.58 |
10.08 |
| 1/30/2007 |
6.94 |
2.93 |
9.88 |
| 2/5/2007 |
10.69 |
4.39 |
15.08 |
| 2/11/2007 |
3.15 |
2.73 |
5.88 |
| 2/17/2007 |
7.36 |
2.43 |
9.79 |
| 2/23/2007 |
3.33 |
3.17 |
6.50 |
| 3/1/2007 |
1.90 |
4.77 |
6.67 |
| 3/7/2007 |
5.23 |
6.60 |
11.88 |
| 3/13/2007 |
2.41 |
5.97 |
8.38 |
| 3/19/2007 |
5.00 |
8.67 |
13.67 |
| 3/25/2007 |
1.39 |
3.99 |
5.38 |
| 3/31/2007 |
4.72 |
5.90 |
10.63 |
| 4/6/2007 |
5.00 |
4.83 |
9.83 |
| 4/12/2007 |
4.21 |
9.70 |
13.92 |
| 4/18/2007 |
3.60 |
6.22 |
9.83 |
| 4/24/2007 |
4.03 |
10.01 |
14.04 |
| 4/30/2007 |
5.32 |
14.43 |
19.75 |
| 5/6/2007 |
4.40 |
6.19 |
10.58 |
| 5/12/2007 |
9.91 |
15.18 |
25.08 |
| 5/18/2007 |
6.48 |
17.10 |
23.58 |
| 5/24/2007 |
4.12 |
5.55 |
9.67 |
| 5/30/2007 |
5.42 |
8.29 |
13.71 |
| 6/5/2007 |
3.75 |
6.88 |
10.63 |
| 6/11/2007 |
2.18 |
6.82 |
9.00 |
| 6/17/2007 |
2.50 |
5.04 |
7.54 |
| 6/23/2007 |
2.87 |
10.63 |
13.50 |
| 6/29/2007 |
4.21 |
13.58 |
17.79 |
| 7/5/2007 |
15.97 |
13.82 |
29.79 |
| 7/11/2007 |
6.81 |
13.90 |
20.71 |
| 7/17/2007 |
19.72 |
21.44 |
41.17 |
| 7/23/2007 |
6.76 |
11.37 |
18.13 |
| 7/29/2007 |
4.86 |
13.85 |
18.71 |
| 8/4/2007 |
5.74 |
15.68 |
21.42 |
| 8/10/2007 |
5.09 |
24.53 |
29.63 |
| 8/16/2007 |
22.08 |
18.50 |
40.58 |
| 8/22/2007 |
6.57 |
3.34 |
9.92 |
| 8/28/2007 |
6.57 |
11.97 |
18.54 |
| 9/3/2007 |
8.80 |
7.91 |
16.71 |
| 9/9/2007 |
3.66 |
7.68 |
11.33 |
| 9/15/2007 |
13.84 |
20.87 |
37.71 |
| 9/21/2007 |
3.94 |
11.56 |
15.50 |
| 9/27/2007 |
5.14 |
16.36 |
21.50 |
| 10/3/2007 |
1.76 |
3.53 |
5.29 |
| 10/9/2007 |
6.30 |
5.79 |
12.08 |
| 10/15/2007 |
15.14 |
7.15 |
22.29 |
| 10/21/2007 |
3.29 |
2.25 |
5.54 |
| 10/27/2007 |
14.95 |
5.92 |
20.88 |
| 11/2/2007 |
10.23 |
8.69 |
18.92 |
| 11/8/2007 |
16.25 |
4.00 |
20.25 |
| 11/14/2007 |
12.64 |
5.74 |
18.38 |
| 11/20/2007 |
18.56 |
7.56 |
26.13 |
| 11/26/2007 |
11.85 |
9.81 |
21.67 |
| 12/2/2007 |
1.34 |
3.70 |
5.04 |
| 12/8/2007 |
4.91 |
5.59 |
10.50 |
| 12/14/2007 |
14.91 |
4.22 |
19.13 |
| 12/20/2007 |
1.76 |
4.57 |
6.33 |
| 12/26/2007 |
2.13 |
1.91 |
4.04 |
| 2007 |
Fine PM (0-2.5µm) |
Coarse PM (2.5-10µm) |
PM10 (0-10µm) |
| Average |
7.02 |
8.34 |
15.35 |
| Maximum |
22.08 |
24.53 |
41.17 |
Here are a few notes on the above data:
- On September 25th a dust storm came through the region. The 203.5 µg/m3 is comparable to the rest of the monitors in Spokane County.
- The notation "-" is shown on four coarse particulate values. The coarse particulate loading on these days was so low that we were seeing negative numbers because of the limits in the sampling method.
- June 10, 2002 filter exchange failure.
- August 1, 2002 start daily sampling during grass field burning season.
- August 2, 2002 key pad failure.
- August 8, 2002 move to new monitoring location
- September 1 - 3, 2002 filter exchange failure.
- September 29, 2002 last of daily samples, returning to 1 in 3 schedule.
- November 5, 2004 changed to new sampling method using R&P mini-partisol. Will only sample for PM 2.5.
- February 27, 2005 started using AIRmetrics minivol portable sampler to collect PM10
- October 2, 2006 Dichotomous Sampler placed back at Liberty Lake site
If you have questions or comments on this page please e-mail Ron Edgar, Chief of Technical Services, rjedgar@spokanecleanair.org.
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