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Air Quality

 

Air Quality Alert - High Winds
February 13, 2011
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: February 13, 2011   7:00 AM MST 
Date Issued for: February 13, 2011   7:00 AM MST
Date and Time Cancelled: February 13, 2011   8:00 PM MST
PM Concentrations location: Credit Union
Weather Observations:  

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

10.5 8.1 WSW   NA

02:00

5.1 11.5 SSW   NA

03:00

2.5 10.4 SW   NA

04:00

8.8 13.8 W   NA

05:00

23.2 18.4 SW   NA

06:00

12.5 9.2 SW   NA

07:00

31.4 19.6 WSW 31.1 NA

08:00

9.9 21.9 WSW   NA

09:00

17.5 20.7 W   NA

10:00

22.3 11.5 W   NA

11:00

17.0 10.4 WNW   NA

12:00

29.5 31.1 NW 38.0 NA

13:00

52.5 32.2 NNW 42.6 NA

14:00

70.2 40.3 NNW 54.1 NA

15:00

90.5 35.7 NNW 47.2 NA

16:00

70.9 35.7 NNW 43.7 NA

17:00

43.5 33.4 NNW 43.7 NA

18:00

6.6 20.7 NNW   NA

19:00

9.8 19.6 NNW   NA

20:00

-1.8 15.0 NNW   NA

21:00

8.3 10.4 NNW   NA

22:00

18.5 8.1 NW   NA

23:00

18.4 calm calm   NA

24:00

12.1 6.9 W   NA

Averages

24.6 19.3      

Alert Graph

PM10 24 hour Concentration = 24.6 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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