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Air Quality

 

Air Quality Alert - High Winds
March 27, 2010
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: March 27, 2010   3:52 AM MDT 
Date Issued for: March 27, 2010    8:00AM MDT
Date and Time Cancelled: March 27, 2010    6:00 PM MDT
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

7.7 19.6 NNW   NA

02:00

10.3 19.6 NW   NA

03:00

9.8 19.6 NNW   NA

04:00

10.7 20.7 NNW   NA

05:00

17.6 24.2 NNW 34.5 NA

06:00

15.1 29.9 NNW 36.8 0.0

07:00

16.7 25.3 N 31.1 0.0

08:00

18.1 19.6 NNW   NA

09:00

31.2 21.9 NNW 38.0 NA

10:00

73.1 29.9 NNW 39.1 NA

11:00

55.0 27.6 NNW 38.0 NA

12:00

73.7 27.6 NNW 34.5 NA

13:00

63.3 27.6 NNW 40.3 NA

14:00

60.8 27.6 NNW 36.8 NA

15:00

59.3 27.6 N 38.0 NA

16:00

29.0 25.3 NNW 38.0 NA

17:00

20.5 24.2 NNW 34.5 NA

18:00

34.8 23.0 NNW   NA

19:00

18.6 16.1 NNW   NA

20:00

14.3 8.1 N   NA

21:00

24.0 9.2 NNW   NA

22:00

18.5 4.6 NW   NA

23:00

20.5 4.6 WNW   NA

24:00

77.4 4.6 W   NA

Averages

32.5 20.3      

PM10 24 hour Concentration = 32.5 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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