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. Author manuscript; available in PMC: 2016 Apr 13.
Published in final edited form as: Atmosphere (Basel). 2015 Dec 23;7(1):1. doi: 10.3390/atmos7010001

Table 2.

Statistics associated with the number of days with extreme events observed in the date range shown in Table 1 for each site.

Site Name Total Days
Data
Available		 Extreme Event Types
Total PM10 PM2.5 Fine
Soil		 High
EC		 Non-Asian
Dust		 Asian
Dust		 Other
Chiricahua * 1664 89 61 56 54 14 41 10 23
Grand Canyon 1664 120 82 64 69 30 49 20 25
Organ Pipe 1431 76 45 55 54 7 41 13 17
Phoenix ** 1628 98 54 58 63 9 50 10 30
Queen Valley *** 1628 98 65 60 60 9 43 15 30
Saguaro NM *** 1628 85 49 56 56 8 40 14 23
SaguaroWest **** 1563 91 56 55 55 10 44 10 30
Tonto *** 1664 103 67 65 67 12 47 18 25

(NAAPS global data were unavailable for the following dates in 2001 that are omitted from categorization into Asian and non-Asian dust: *16 October 2001, 26 August 2001, 9 November 2001; **16 October 2001, 31 October 2001, 21 November 2001; ***16 October 2001, 9 November 2001; ****9 November 2001). Values in the Total category represent days with any type of extreme event (i.e., PM10, PM2.5, fine soil).