SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 17, 2015
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 16, 2015  5:53 AM MST 
Date Issued for:

November 16, 2015  3:00 PM MST

Date and Time Cancelled: November 17, 2015  5:00 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

41.0 40.3 NNW 49.5 0.00

02:00

7.8 36.8 NNW 47.2 0.00

03:00

11.9 35.7 N 44.9 0.00

04:00

9.1 39.1 NNW 49.5 0.00

05:00

3.9 29.9 NNW 39.1 0.00

06:00

2.5 27.6 NNW 38.0 NA

07:00

5.4 23.0 NNW   NA

08:00

10.4 20.7 NNW   NA

09:00

39.3 24.2 NNW 31.1 NA

10:00

32.7 17.3 NNW   NA

11:00

58.6 21.9 N   NA

12:00

59.7 24.2 NNW 31.1 NA

13:00

59.1 20.7 NNW   NA

14:00

60.5 20.7 N   NA

15:00

105.8 20.7 N   NA

16:00

159.0 12.7 NNE   NA

17:00

81.0 12.7 NNE   NA

18:00

15.2 5.8 WSW   NA

19:00

17.1 3.5 WNW   0.00

20:00

25.1 5.8 WSW   0.00

21:00

39.4 4.6 SSE   0.00

22:00

13.8 3.5 SE   NA

23:00

26.7 calm calm   NA

24:00

32.8 calm calm   NA

Averages

38.2 20.5      

 

PM10 24 hour Concentration = 38.2 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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