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Air Quality

 

Air Quality Alert - High Winds
October 30, 2017
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: October 30, 2017   2:56 AM MST 
Date Issued for:

October 30, 2017   2:56 AM MST

Date and Time Cancelled: October 30, 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

12.8 26.5 NW 33.4 0.00 IN

02:00

7.9 28.8 NW 41.4 0.00 IN

03:00

32.9 39.1 NNW 48.3 0.00 IN

04:00

18.2 29.9 NNW 47.2 0.00 IN

05:00

13.8 28.8 NNW 38.0 0.00 IN

06:00

39.0 27.6 NNW 38.0 0.00 IN

07:00

35.1 31.1 NNW 43.7 0.00 IN

08:00

24.8 36.8 NNW 46.0 0.00 IN

09:00

27.1 32.2 NNW 40.3 0.00 IN

10:00

19.2 28.8 NNW 39.1 0.00 IN

11:00

29.8 33.4 NNW 40.3 0.00 IN

12:00

31.5 26.5 NW 33.4 0.00 IN

13:00

37.4 24.2 NNW 32.2 0.00 IN

14:00

20.5 26.5 NW 32.2 0.00 IN

15:00

20.0 27.6 NNW 33.4 NA

16:00

16.7 18.4 NNW   NA

17:00

15.0 13.8 NNW   0.00 IN

18:00

21.2 9.2 NNW   NA

19:00

42.0 10.4 NNW   NA

20:00

28.1 9.2 N   NA

21:00

15.7 4.6 ESE   NA

22:00

11.6 calm calm   NA

23:00

6.7 calm calm   NA

24:00

5.2 5.8 SSE   NA

Averages

22.2 23.6      

 

PM10 24 hour Concentration = 22.2 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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