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Air Quality

 

Air Quality Alert - High Winds
January 15, 2021
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 13, 2021  12:06 PM MDT 
Date Issued for:

January 13, 2021, 2021  6:00 PM MDT

Date and Time Cancelled: January 15, 2021  12:00 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

54.2 41 NNW 58 NA

02:00

80.5 43 NNW 56 NA

03:00

31.7 38 NNW 61 NA

04:00

17.2 40 NNW 60 NA

05:00

51.7 43 NNW 64 NA

06:00

17.9 37 NNW 53 NA

07:00

54.9 33 NNW 49 NA

08:00

29 37 NNW 52 NA

09:00

30.2 36 NNW 48 NA

10:00

45.3 37 NNW 52 NA

11:00

49.7 28 NNW 45 NA

12:00

45.1 31 NNW 40 NA

13:00

18.9 31 NNW 41 NA

14:00

23.4 28 N 35 NA

15:00

50.2 23 N 37 NA

16:00

74.3 22 NNW 0 NA

17:00

72.6 14 N 0 NA

18:00

41.2 12 NNW 0 NA

19:00

33.9 3 W 0 NA

20:00

51.2 0 Calm 0 NA

21:00

29.5 0 Calm 0 NA

22:00

26.3 3 SE 0 NA

23:00

57.2 3 ESE 0 NA

24:00

35.6 0 Calm 0 NA

Averages

42.6 24.3 18    

 

PM10 24 hour Concentration = 42.6 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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