SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
February 10, 2015
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: February 10, 2015  3:48 AM MST 
Date Issued for:

February 10, 2015  11:00 AM MST

Date and Time Cancelled: February 10, 2015  8:00 PM MST
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

0.3 13.8 NW   NA

02:00

0.0 5.8 W   NA

03:00

2.0 9.2 WNW   NA

04:00

2.2 9.2 NW   NA

05:00

0.2 10.4 WNW   NA

06:00

-3.2 6.9 WNW   NA

07:00

4.5 8.1 WNW   NA

08:00

-1.9 6.9 NW   NA

09:00

25.1 12.7 NNW   NA

10:00

51.8 24.2 NNW 34.5 NA

11:00

39.1 28.8 NNW 36.8 NA

12:00

35.4 27.6 NNW 34.5 NA

13:00

19.7 25.3 NNW 34.5 NA

14:00

33.6 32.2 NNW 39.1 0.00

15:00

38.8 31.1 N 36.8 0.00

16:00

11.1 29.9 N 41.4 NA

17:00

5.1 33.4 NNW 40.3 NA

18:00

23.5 29.9 N 40.3 NA

19:00

14.6 24.2 NNW 36.8 NA

20:00

6.8 20.7 NNW   NA

21:00

6.0 27.6 N 40.3 NA

22:00

8.6 24.2 NNW 32.2 NA

23:00

2.9 21.9 NNW   NA

24:00

0.4 11.5 N   NA

Averages

13.6 19.8      

 

PM10 24 hour Concentration = 13.6 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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