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Air Quality

 

Air Quality Alert - High Winds
January 28, 2015
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 28, 2015  2:47 AM MST 
Date Issued for:

January 28, 2015  late morning

Date and Time Cancelled: January 28, 2015  afternoon
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

32.9 12.7 WNW   NA

02:00

6.8 5.8 NW   NA

03:00

3.9 8.1 NNW   NA

04:00

-0.1 9.2 NW   NA

05:00

4.4 3.5 WNW   NA

06:00

2.2 11.5 NW   NA

07:00

6.7 11.5 NW   NA

08:00

6.4 18.4 NNW   NA

09:00

29.3 20.7 NNW   NA

10:00

72.2 28.8 NNW 39.1 NA

11:00

43.9 31.1 NNW 40.3 NA

12:00

39.1 26.5 NNW 34.5 NA

13:00

48.4 32.2 NW 43.7 NA

14:00

75.8 28.8 NNW 38.0 NA

15:00

36.0 27.6 NNW 35.7 NA

16:00

56.5 29.9 NNW 40.3 NA

17:00

57.2 26.5 NNW 38.0 NA

18:00

21.6 26.5 N 35.7 NA

19:00

9.2 34.5 NNW 44.9 NA

20:00

10.7 25.3 NNW   NA

21:00

6.3 20.7 NNW   NA

22:00

18.2 20.7 NNW   NA

23:00

17.3 26.5 NNW 34.5 NA

24:00

4.5 26.5 NNW 33.4 NA

Averages

25.4 21.4      

 

PM10 24 hour Concentration = 25.4 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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