SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 29, 2017
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 28, 2017   12:28 PM MST 
Date Issued for:

November 28, 2017   11:00 PM MST

Date and Time Cancelled: November 29, 2017   6:00 PM MST
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

8.3 31.1 S 39.1 NA

02:00

11.0 33.4 S 42.6 NA

03:00

11.0 27.6 S 36.8 NA

04:00

6.9 26.5 S 35.7 NA

05:00

4.0 27.6 SSE 34.5 NA

06:00

5.7 28.8 SSE 40.3 NA

07:00

16.7 19.6 SSE   NA

08:00

57.1 6.9 W   NA

09:00

62.3 5.8 NE   NA

10:00

17.5 10.4 N   NA

11:00

42.3 21.9 N   NA

12:00

101.7 41.4 NW 49.5 NA

13:00

18.0 23.0 WNW 36.8 NA

14:00

8.7 19.6 W   NA

15:00

16.8 26.5 NW 42.6 0.00 IN

16:00

16.5 32.2 NNW 47.2 NA

17:00

15.5 24.2 NNW 33.4 NA

18:00

6.2 11.5 NW   NA

19:00

26.6 16.1 WNW   NA

20:00

5.7 11.5 W   NA

21:00

5.6 6.9 W   NA

22:00

4.9 8.1 W   NA

23:00

6.9 6.9 W   NA

24:00

4.2 9.2 W   NA

Averages

20.0 19.9      

 

PM10 24 hour Concentration = 20.0 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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