Expt. Date   Season Location* Exposure conditions (post-exposure treatment) UV index Time of day Surface Exposure time (min.)
15 30 60
A 21-Mar-2011 Spring Blacksburg, VAb Partly cloudy n.d. 1:37 pm Aluminum pan       x
B 29-Jun-2011 Summer Blacksburg, VAb Clear 4 - 10 2:45 pm Aluminum pan   x    
C 30-Aug-2011 Summer Blacksburg, VAb Clear 8 - 9 2:17 pm Aluminum foil   x x  
White paper on glass pan   x    
Dark non-stick pan   x    
Aluminum pan   x x  
D 12-Oct-2011 Fall Blacksburg, VAb Overcast 1 - 2 1:46 pm Aluminum foil   x   x
E         6 -7 1:30 pm Aluminum foil Portabello, sliced x    
6 - 7 1:30 pm Shiitake, sliced x    
6 - 7 1:30 pm Enoki, whole x    
4 - 5 3:30 pm White button, whole x    
4 - 5 3:30 pm Oyster, sliced x    
F 18-Oct-2011 Fall Blacksburg, VAc Partly cloudy 0 - 2 5:07 pm Aluminum foil   x    
G 7-Mar-2012 Winter Blacksburg, VAb Clear 2 - 6 2:28 pm Aluminum foil   x    
H 10-Mar-2012 Winter Blacksburg, VAb Clear 8 - 9 10:32 am Aluminum foil   x    
I 6-Apr-2012 Spring Blacksburg, VAc Clear 2 - 7 4:07 pm Aluminum foil   x    
J 7-Apr-2012 Spring Christiansburg, VAd Clear 7 - 9 11:15 am Aluminum foil   x    
K1 4-Jun-2012 Summer Dexter, MIe Mostly clear n.d. 11:00 am Aluminum foil     x  
K2 9-Jun-2012 Summer Corning, NYf Mostly clear n.d. 11:00 am Aluminum foil     x  
K3 10-Jul-2012 Summer Dallas, TXg Mostly cloudy n.d. 11:00 am Aluminum foil     x  
K4 31-Jul-2012 Summer Beltsville, MDh Mostly clear n.d. 10:45 am Aluminum foil   x**    
L 6-Feb-2013 Winter Blacksburg, VAb Clear 4 12:52 pm Aluminum foil   x    
M 25-Feb-2013 Winter Blacksburg, VAb Mostly cloudy 0 - 1 9:51 am Aluminum foil   x x  
N 14-Mar-2013 Spring Blacksburg, VAi Partly cloudy 2 9:09 am Aluminum foil   x    
n.d.= not determined
*Latitude, longitude (elevation above sea level; orientation): b37.2264217, -80.4255651 (618m; east); c37.2264217, -80.4255651 (618m; west);
d37.1438000, -80.4293000 (609m; east); e42.329171, -83.872428 (277m; south-southeast) ; f42.138641, -77.056551 (330m; north); g33.03771, -96.836331 (210m, northnorthwest); h39.032348, -76.911002 (42m; east); i37.2432360, -80.4257903 (645m; southeast)
**18 min.
Table 1: Summary of parameters for experiments conducted. All experiments except E were with sliced white button mushrooms.