SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
February 24, 2016
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: February 24, 2016  3:26 AM MST 
Date Issued for:

February 24, 2016   8:00 AM MST

Date and Time Cancelled: February 24, 2016  5:00 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

5.6 calm calm   NA

02:00

2.9 6.9 N   NA

03:00

72.5 5.8 NNW   NA

04:00

79.4 13.8 NNW   NA

05:00

20.6 17.3 NNW   NA

06:00

149.3 29.9 NNW 36.8 NA

07:00

37.0 29.9 NNW 41.4 0.00

08:00

44.6 28.8 NW 36.8 0.00

09:00

29.4 27.6 NNW 38.0 NA

10:00

40.2 25.3 NNW 35.7 NA

11:00

74.5 28.8 NNW 40.3 NA

12:00

88.7 35.7 NNW 46.0 NA

13:00

43.1 32.2 NNW 42.6 NA

14:00

40.2 33.4 NW 44.9 NA

15:00

49.9 27.6 NNW 40.3 NA

16:00

45.1 25.3 NNW 36.8 NA

17:00

34.1 21.9 NNW   NA

18:00

55.4 21.9 NNW   NA

19:00

28.0 24.2 NNW 31.1 NA

20:00

5.9 19.6 NW   NA

21:00

7.4 16.1 NNW   NA

22:00

7.8 15.0 NNW   NA

23:00

13.9 12.7 NNW   NA

24:00

33.6 12.7 NNW   NA

Averages

42.0 22.7      

 

PM10 24 hour Concentration = 42.0 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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