SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
March 7, 2017
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: March 7, 2017   3:53 AM MST 
Date Issued for:

March 7, 2017   8:00 AM MST

Date and Time Cancelled: March 7, 2017   8:00 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

3.8 13.8 W   NA

02:00

3.8 11.5 WSW   NA

03:00

3.8 11.5 W   NA

04:00

2.0 11.5 W   NA

05:00

3.5 13.8 W   NA

06:00

3.3 12.7 W   NA

07:00

1.8 13.8 W   NA

08:00

6 26.5 W 35.7 NA

09:00

15.8 26.5 WNW 35.7 NA

10:00

25.9 38.0 WNW 49.5 NA

11:00

25.7 29.9 NW 43.7 NA

12:00

29.1 29.9 NW 41.4 NA

13:00

57.2 36.8 W 44.9 NA

14:00

15.0 29.9 WNW 39.1 NA

15:00

22.2 38.0 WNW 49.5 NA

16:00

23.7 35.7 WNW 46.0 NA

17:00

16.3 32.2 WNW 51.8 NA

18:00

7.7 13.8 NNW   NA

19:00

29.6 17.3 N   NA

20:00

22.7 21.9 NNW   NA

21:00

10.6 19.6 NNW   NA

22:00

7.4 15.0 NNW   NA

23:00

7.7 15.0 NNW   NA

24:00

8.4 3.5 VAR   NA

Averages

14.7 22.7      

 

PM10 24 hour Concentration = 14.7 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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