SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 5, 2014
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 5, 2014  6:09 AM MST 
Date Issued for:

November 5, 2014  8:00 AM MST

Date and Time Cancelled: November 5, 2014  4:00 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

11.4 10.4 NNW   NA

02:00

4.0 calm calm   NA

03:00

3.1 calm calm   NA

04:00

99.0 13.8 NNW   NA

05:00

73.0 8.1 N   NA

06:00

8.1 11.5 WNW   NA

07:00

22.4 19.6 NNW 42.6 0.00

08:00

10.6 20.7 NW   0.01

09:00

69.7 31.1 NW 40.3 NA

10:00

134.1 29.9 NNW 39.1 NA

11:00

186.2 26.5 NW 38 NA

12:00

77.7 25.3 NNW 34.5 NA

13:00

115.4 27.6 NNW 38 NA

14:00

116.8 24.2 NNW 31.1 NA

15:00

109.3 23.0 NNW 31.1 NA

16:00

74.3 16.1 NNW   NA

17:00

30.6 12.7 N   NA

18:00

16.9 11.5 NNW   NA

19:00

38.6 8.1 NNW   NA

20:00

34.2 9.2 N   NA

21:00

14.9 10.4 NW   NA

22:00

18.6 8.1 NNW   NA

23:00

26.1 3.5 W   NA

24:00

35.4 calm calm   NA

Averages

55.4 16.7      

 

PM10 24 hour Concentration = 55.4 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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