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SOUTH DAKOTA Department of
Agriculture & Natural Resources

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Air Quality

 

Air Quality Alert - High Winds
March 8, 2020
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 17, 2020  2:30 AM MST 
Date Issued for:

January 17, 2020  3:00 PM MST

Date and Time Cancelled: January 18, 2020  5:00 PM MST
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

6.9 22 NNW   NA

02:00

17.3 20 NNW   NA

03:00

6.1 20 NNW   NA

04:00

9.6 16 NNW   NA

05:00

8.8 10 N   NA

06:00

4.7 14 NW   NA

07:00

5.1 9 N   NA

08:00

6.6 0 Calm   NA

09:00

8.9 3 E   NA

10:00

NA 6 NNE   NA

11:00

NA 0 Calm   NA

12:00

NA 7 VAR   NA

13:00

26.1 6 N   NA

14:00

44.6 7 NNE   NA

15:00

34.8 10 N   NA

16:00

15.7 6 N   NA

17:00

19.4 3 NNW   NA

18:00

24.6 6 NW   NA

19:00

32.9 6 WNW   NA

20:00

44.1 3 NW   NA

21:00

95.8 6 N   NA

22:00

34.5 3 NNW   NA

23:00

41.4 0 Calm   NA

24:00

32.9 8 NE   NA

Averages

24.8 8      

 

PM10 24 hour Concentration = 24.8 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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