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SOUTH DAKOTA Department of
Agriculture & Natural Resources

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Air Quality

 

Air Quality Alert - High Winds
October 14, 2020
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: October 14, 2020  7:23 AM MDT 
Date Issued for:

October 14, 2020  7:00 AM MDT

Date and Time Cancelled: October 14, 2020  6:00 PM MDT
PM Concentrations location: Credit Union
Weather Observations: Rapid City Regional Airport

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

123.1 30 NNW 44 NA

02:00

50.5 28 NNW 40 NA

03:00

16.2 24 N 38 NA

04:00

3.7 24 NNW 33 NA

05:00

5.9 23 NW 36 NA

06:00

7.4 29 NW 39 NA

07:00

33.9 17 NW 29 NA

08:00

42 20 NW 26 NA

09:00

69.4 18 NW 35 NA

10:00

303 22 NW 31 NA

11:00

134.1 33 NNW 49 NA

12:00

78.3 31 NW 48 NA

13:00

193 30 NW 43 NA

14:00

131.1 30 NW 44 NA

15:00

264.2 29 NW 43 NA

16:00

42.5 29 NNW 48 NA

17:00

NA 28 NNW 43 NA

18:00

NA 30 NW 48 NA

19:00

12.3 25 NW 38 NA

20:00

24.8 26 NNW 38 NA

21:00

27.1 23 NNW 30 NA

22:00

10.1 17 NNW 25 NA

23:00

5.4 21 NNW 29 NA

24:00

25.6 17 NW 25 NA

Averages

72.9 25 18    

 

PM10 24 hour Concentration = 72.9 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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