SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 9, 2010
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 9, 2010   4:08 AM MST 
Date Issued for: November 9, 2010   4:08 AM MST
Date and Time Cancelled: November 9, 2010    Noon
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

94.1 26.5 N 33.4 NA

02:00

89.8 32.2 N 40.3 NA

03:00

83.7 32.2 N 43.7 NA

04:00

82.6 31.1 N 41.1 NA

05:00

54.6 29.9 N 46.0 NA

06:00

51.7 38.0 NNW 47.2 NA

07:00

72.7 34.5 NNW 49.5 NA

08:00

82.6 34.5 NNW 42.6 NA

09:00

89.0 42.6 NNW 51.8 NA

10:00

79.3 39.1 NNW 49.5 NA

11:00

56.8 39.1 NW 46.0 NA

12:00

66.9 34.5 NNW 43.7 NA

13:00

32.3 33.4 NNW 41.4 NA

14:00

34.9 26.5 NNW 38.0 NA

15:00

40.8 28.8 NNW 38.0 NA

16:00

27.6 25.3 NNW 32.2 NA

17:00

15.2 28.8 NNW 35.7 NA

18:00

4.6 23.0 NW   NA

19:00

9.5 20.7 NNW   0.00

20:00

11.8 20.7 NW   0.00

21:00

4.2 13.8 NW   0.01

22:00

1.1 16.1 NW   0.00

23:00

3.9 17.3 NW   0.00

24:00

0.0 15.0 NNW   NA

Averages

45.4 28.5      

PM10 24 hour Concentration = 45.4 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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