South Dakota's Department of Agriculture and DENR have merged.
You are viewing an archived site, please update bookmarks and visit our new website at DANR.sd.gov.
SOUTH DAKOTA Department of
Agriculture & Natural Resources

Protecting South Dakota's Tomorrow...Today!
Joe Foss Building
523 E Capitol Ave
Pierre, SD 57501-3182
Contact Us  Field Offices
SubMenu

Air Quality

 

Air Quality Alert - High Winds
March 29, 2021
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: March 29, 2021  6:32 AM MDT 
Date Issued for:

March 29, 2021, 2021  6:32 AM MDT

Date and Time Cancelled: March 29, 2021  9:00 PM MDT
PM Concentrations location: Credit Union
Weather Observations: Rapid City Regional Airport

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

30 16 S 0 NA

02:00

44.2 6 ENE 0 NA

03:00

22.9 15 SSW 0 NA

04:00

10.8 15 W 0 NA

05:00

76.2 7 SSW 0 NA

06:00

111.2 24 WSW 39 NA

07:00

90 25 W 46 NA

08:00

58.6 37 WSW 71 NA

09:00

71.6 41 WSW 64 NA

10:00

290.3 25 WSW 46 NA

11:00

813.6 21 W 39 NA

12:00

429.3 48 NNW 68 NA

13:00

104.3 54 NW 72 NA

14:00

50 58 NNW 75 NA

15:00

48.7 37 NNW 49 NA

16:00

48.3 28 WNW 41 NA

17:00

37.7 25 WNW 41 NA

18:00

49 32 NW 47 NA

19:00

22.9 30 NW 48 NA

20:00

29.2 16 NW 36 NA

21:00

10.8 25 NW 41 NA

22:00

9.3 15 NW 26 NA

23:00

10.6 26 NW 38 NA

24:00

11.3 29 NW 45 NA

Averages

103.4 27.3 18    

 

PM10 24 hour Concentration = 103.4 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

4oiGIFNEIEJJVCBEZXRlY3Rpb24=