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Air Quality

 

Air Quality Alert - High Winds
December 13, 2017
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: December 13, 2017   3:00 AM MST 
Date Issued for:

December 13, 2017   3:00 AM MST

Date and Time Cancelled: December 13, 2017   2:51 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

13.5 33.4 NW 48.3 0.00 IN

02:00

54.9 29.9 NW 43.7 NA

03:00

51.0 33.4 NW 49.5 0.00 IN

04:00

113.4 36.8 NW 50.6 0.00 IN

05:00

74.8 33.4 NNW 46.0 0.00 IN

06:00

47.0 33.4 NNW 47.2 0.00 IN

07:00

36.1 34.5 NNW 43.7 NA

08:00

34.8 28.8 NNW 36.8 0.00 IN

09:00

47.5 29.9 NW 43.7 0.00 IN

10:00

31.2 32.2 NW 42.6 NA

11:00

18.0 31.1 NW 39.1 NA

12:00

15.4 31.1 NNW 40.3 NA

13:00

17.2 28.8 NNW 38.0 NA

14:00

18.0 26.5 NNW 36.8 NA

15:00

17.2 19.6 NNW 31.1 NA

16:00

18.9 21.9 NNW 31.1 NA

17:00

18.5 21.9 NNW   NA

18:00

10.5 16.1 NNW   NA

19:00

11.5 21.9 NW   NA

20:00

7.1 19.6 NNW   NA

21:00

7.1 23.0 NNW   0.00 IN

22:00

7.6 28.8 NNW 36.8 NA

23:00

5.4 23.0 NNW 34.5 0.00 IN

24:00

20.1 21.9 NNW   0.00 IN

Averages

29.0 27.5      

 

PM10 24 hour Concentration = 29.0 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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