SOUTH DAKOTA Department of
Environment & Natural Resources

Protecting South Dakota's Tomorrow...Today!
Joe Foss Building
523 E Capitol
Pierre, SD 57501
Field Offices
Contact Us
SubMenu

Air Quality

 

Air Quality Alert - High Winds
April 23, 2014
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: April 23, 2014  4:01 AM MDT 
Date Issued for:

April 23, 2014  9:00 AM MDT

Date and Time Cancelled: April 23, 2014  6:00 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

32.2 12.7 SSE   NA

02:00

30.2 13.8 S   NA

03:00

30.2 9.2 SSE   NA

04:00

29.1 8.1 S   NA

05:00

119.6 6.9 S   NA

06:00

49.6 calm calm   NA

07:00

34.9 4.6 E   NA

08:00

47.3 9.2 E   NA

09:00

33.3 10.4 N   NA

10:00

160.3 8.1 N   NA

11:00

205.7 19.6 N   NA

12:00

105.6 17.3 NNW   NA

13:00

327.1 34.5 NNW 43.7 NA

14:00

353.3 34.5 NNW 48.3 NA

15:00

205.6 33.4 N 41.4 NA

16:00

177.3 28.8 N 36.8 NA

17:00

193.8 25.3 N 36.8 NA

18:00

140.9 24.2 N 31.1 NA

19:00

36.6 16.1 N   NA

20:00

8.7 12.7 N   NA

21:00

3.6 12.7 NNW   NA

22:00

3.1 9.2 NNW   NA

23:00

3.9 6.9 NW   NA

24:00

4.1 5.8 WNW   NA

Averages

97.3 15.8      

 

PM10 24 hour Concentration = 97.3 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

4oiGIFNEIEJJVCBEZXRlY3Rpb24=