SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
April 5, 2016
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: April 5, 2016  5:25 AM MST 
Date Issued for:

April 5 , 2016   5:25 AM MST

Date and Time Cancelled: April 6, 2016  7:00 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

86.0 3.5 ESE   NA

02:00

14.9 5.8 ESE   NA

03:00

8.4 calm CALM   NA

04:00

143.5 34.5 NNW 46.0 NA

05:00

18.0 24.2 NNW   NA

06:00

12.5 21.9 NNW   NA

07:00

53.7 19.6 NNW   NA

08:00

27.0 27.6 NNW 34.5 NA

09:00

34.6 24.2 NW 38.0 NA

10:00

16.7 18.4 WNW 31.1 NA

11:00

15.7 8.1 NW   NA

12:00

10.6 17.3 WSW   NA

13:00

15.4 23.0 W 31.1 NA

14:00

16.4 27.6 WNW 38.0 NA

15:00

30.7 32.2 W 41.4 NA

16:00

65.9 39.1 W 50.6 NA

17:00

7.8 27.6 WNW 41.4 NA

18:00

9.3 28.8 WNW 43.7 NA

19:00

7.1 23.0 NW   NA

20:00

8.4 40.3 NW 56.4 NA

21:00

45.1 24.2 NNW 34.5 0.00

22:00

232.0 43.7 NW 56.4 0.00

23:00

159.0 46.0 NW 61.0 NA

24:00

23.8 36.8 NW 51.8 NA

Averages

44.3 24.5      

 

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

PM10 24 hour Standard = 150 ug/m3

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