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
January 24, 2015
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 24, 2015  2:47 AM MST 
Date Issued for:

January 24, 2015  9:00 AM MST

Date and Time Cancelled: January 24, 2015  7:00 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

9.9 8.1 WSW   NA

02:00

9.9 4.6 WNW   NA

03:00

2.9 calm calm   NA

04:00

-3.4 4.6 SW   NA

05:00

4.2 3.5 SW   NA

06:00

-0.2 3.5 SSW   NA

07:00

2.2 4.6 SW   NA

08:00

5.8 3.5 E   NA

09:00

9.7 calm calm   NA

10:00

20.8 16.1 WNW 34.5 NA

11:00

8.8 26.5 NW 52.9 NA

12:00

90.2 40.3 NW 55.2 NA

13:00

116.4 41.4 NW 48.3 0.00

14:00

61.4 38.0 NW 33.4 NA

15:00

14.5 23.0 NW 43.7 0.00

16:00

-0.6 34.5 NW 44.9 NA

17:00

-2.5 31.1 NW 54.1 NA

18:00

1.9 44.9 NW 46.0 NA

19:00

15.5 34.5 NW 50.6 NA

20:00

5.3 36.8 NW 41.4 NA

21:00

4.2 29.9 NW 38.0 NA

22:00

1.7 26.5 NW 34.5 NA

23:00

1.4 24.2 NW   NA

24:00

3.5 24.2 NW   NA

Averages

16.0 22.9      

 

PM10 24 hour Concentration = 16.0 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

4oiGIFNEIEJJVCBEZXRlY3Rpb24=