SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
February 18, 2016
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: February 18, 2016  12:36 PM MST 
Date Issued for:

February 18, 2016   12:36 PM MST

Date and Time Cancelled: February 19, 2016  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

16.1 9.2 SSE   NA

02:00

3.4 13.8 WSW   NA

03:00

2.0 20.7 WSW   NA

04:00

1.5 16.1 WSW   NA

05:00

0.3 18.4 WSW   NA

06:00

-0.9 15.0 W   NA

07:00

10.8 11.5 WSW   NA

08:00

19.6       NA

09:00

24.3 11.5 W   NA

10:00

17.9 11.5 W   NA

11:00

10.5 15.0 W   NA

12:00

16.1 8.1 SSW   NA

13:00

14.2 10.4 SE   NA

14:00

26.3 20.7 W   NA

15:00

44.4 13.8 SW   NA

16:00

24.3 10.4 SW   NA

17:00

13.9 11.5 SW   0.00 IN

18:00

20.4 19.6 W   NA

19:00

19.9 4.6 VAR   NA

20:00

6.9 16.1 SSW   NA

21:00

59.5 33.4 WSW 44.9 NA

22:00

41.7 25.3 WSW 31.1 NA

23:00

16.7 36.8 NW 43.7 0.00 IN

24:00

-1.9 24.2 NW 33.4 0.04 IN

Averages

17.0 16.4      

 

PM10 24 hour Concentration = 17.0 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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