Figure 2. Frame and rack assembly used for holding six-month, six-replicale exposure panels at sites in the vicinity of 

 the Millstone Nuclear Power Station. 



The panels were placed at each site in February, May, August and November and were collected six 

 months later in August, November, February and May, respectively. This provided four exposure periods, 

 each overlapping the next by three months. At the start of each exposure period, one rack of panels was 

 removed for processing and a new rack with fresh panels was deployed. Throughout this report the 

 exposure periods will be referred to using the following abbreviations: Aug-Feb, Nov-May, Feb-Aug and 

 May-Nov. Each abbreviation refers to the month of panel deployment followed by the month of panel 

 collection. 



