OCCUPAIIOXAL AND ACCIDENTAL KXPOSLRl, 

 Table 3. Results nwiikcd a arc lh<- lirsl ; those inaikcd b ar<- ihf results a iiuiiith later 



The results for Index 1 for mixed groups of adults and children are shown 

 in Table 4. They show very significant differences between the mean values 

 for the exposed and unexposed groups. 



Index No. 2 



L+M 



7o of lympho- 

 cytes C 

 granules 



% of mono- 

 cytes of "B' 

 type 



o 



en 



CJl 



o 



No. 8 



No. 9 



No. 10 



No. 11 



No.12 



a Test shortly after exposure ceased 

 b Test about one month later 



Figure 4. Results of tests on accidentally exposed children 



42 



