SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 23, 2014
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 23, 2014  6:31 AM MST 
Date Issued for:

November 23, 2014  8:00 AM MST

Date and Time Cancelled: November 23, 2014  8:00 PM MST
PM Concentrations location: Credit Union
Weather Observations:  

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

4.6 24.2 NW   NA

02:00

5.0 15.0 NW   NA

03:00

5.3 19.6 NW   NA

04:00

4.3 15.0 NW   NA

05:00

1.8 15.0 NW   NA

06:00

5.2 17.3 NW   NA

07:00

11.4 17.3 NW   NA

08:00

5.6 25.3 NW 39.1 NA

09:00

9.6 36.7 NW 52.9 NA

10:00

15.6 36.8 NW 46.0 NA

11:00

25.0 35.7 NW 55.2 NA

12:00

38.3 39.1 NW 61.0 NA

13:00

40.4 34.5 NW 49.5 NA

14:00

26.2 40.3 NW 50.6 NA

15:00

22.9 31.1 NW 49.5 NA

16:00

7.3 32.2 NW 47.2 NA

17:00

13.2 23.0 NNW 32.2 NA

18:00

16.7 19.6 NNW   NA

19:00

8.4 13.8 NNW   NA

20:00

7.1 24.2 NW 32.2 NA

21:00

15.4 24.2 NNW 39.1 NA

22:00

18.9 29.9 NNW 35.7 NA

23:00

14.5 23.0 NNW 32.2 NA

24:00

21.6 15.0 NNW   NA

Averages

14.3 25.3      

 

PM10 24 hour Concentration = 14.3 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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