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Air Quality

 

Air Quality Alert - High Winds
May 14, 2013
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: May 14, 2013  3:50 AM MDT 
Date Issued for:

May 14, 2013 3:50 AM MDT

Date and Time Cancelled: May 14, 2013  7:00 PM MDT
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

16.7 6.9 SE   NA

02:00

17.1 8.1 SE   NA

03:00

7.7 calm calm   NA

04:00

11.0 calm calm   NA

05:00

13.6 calm calm   NA

06:00

94.4 10.4 W   NA

07:00

133.9 23.0 NNW 32.2 NA

08:00

132.3 31.1 NNW 38.0 NA

09:00

95.3 26.5 NNW 38.0 NA

10:00

230.5 31.1 NNW 38.0 NA

11:00

168.0 29.9 NNW 38.0 NA

12:00

98.1 17.3 N   NA

13:00

85.0 24.2 NNE 31.1 NA

14:00

117.3 24.2 N 31.1 NA

15:00

134.0 18.4 N   NA

16:00

52.7 12.7 NNE 32.2 NA

17:00

33.1 11.5 N   NA

18:00

30.9 8.1 N   NA

19:00

42.7 11.5 N   NA

20:00

50.6 5.8 NE   NA

21:00

78.2 8.1 NE   NA

22:00

76.5 11.5 ENE   NA

23:00

64.1 10.4 NE   NA

24:00

26.7 11.5 NE   NA

Averages

75.4 16.3      

PM10 24 hour Concentration = 75.4 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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