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Air Quality

 

Air Quality Alert - High Winds
January 05, 2021
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 05, 2021  2:47 AM MDT 
Date Issued for:

January 05, 2021, 2021  11:00 AM MDT

Date and Time Cancelled: January 05, 2021  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

16.2 7 NNW 0 NA

02:00

9.1 8 NNW 0 NA

03:00

6.9 5 NNW 0 NA

04:00

6.9 3 NNW 0 NA

05:00

13.2 5 NNW 0 NA

06:00

38.7 0 NNW 0 NA

07:00

31.2 0 NNW 0 NA

08:00

22.1 13 NNW 0 NA

09:00

109.9 8 NNW 0 NA

10:00

176.5 7 NNW 0 NA

11:00

130.6 21 NNW 26 NA

12:00

98 20 NNW 29 NA

13:00

169.7 37 NNW 48 NA

14:00

51.5 35 NNW 52 NA

15:00

82.9 35 NW 51 NA

16:00

74.1 35 NW 51 NA

17:00

29.5 32 NW 46 NA

18:00

27.1 32 NW 45 NA

19:00

19.7 32 NW 44 NA

20:00

7.9 31 NW 43 NA

21:00

9.8 32 WNW 46 NA

22:00

9.8 36 Calm 45 NA

23:00

16.2 25 SSW 43 NA

24:00

8.4 26 Calm 38 NA

Averages

48.6 20.2 18    

 

PM10 24 hour Concentration = 48.6 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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