SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
February 6, 2016
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: February 6, 2016  1:18 PM MST 
Date Issued for:

February 6, 2016 evening

Date and Time Cancelled: February 7, 2016  night
PM Concentrations location: Credit Union
Weather Observations:  Ellsworth Air Force Base

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

10.7 8.1 SSW   NA

02:00

6.1 6.9 SW   NA

03:00

4.1 6.9 SW   NA

04:00

1.4 5.8 SW   NA

05:00

2.4 9.2 WSW   NA

06:00

3.4 12.7 WSW   NA

07:00

-0.4 10.4 SW   NA

08:00

14.4 8.1 SW   NA

09:00

16.6 5.8 SSW   NA

10:00

12.9 10.4 SSW   NA

11:00

28.2 5.8 SSW   NA

12:00

34.7 6.9 SSW   NA

13:00

31.4 3.5 SW   NA

14:00

7.4 2.3 S   NA

15:00

27.2 10.4 NNW   NA

16:00

67.9 16.1 NW   NA

17:00

136.4 28.8 N 39.1 NA

18:00

83.0 41.4 NW 51.8 0.00 IN

19:00

26.3 26.5 NW 38.0 0.00 IN

20:00

23.1 25.3 NW 28.8 NA

21:00

27.7 24.2 NW 35.7 NA

22:00

8.3 23.0 NW 32.2 NA

23:00

7.1 26.5 NW 33.4 NA

24:00

7.8 21.9 NW 32.2 0.00 IN

Averages

24.5 14.5      

 

PM10 24 hour Concentration = 24.5 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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