c 

 o 



11 



*intDSBO)0-Niof|fiiCf.eo(j)0- 



ffl O) Ol (J) 0) O) 0) 31 ^ c ^ o <" « "> <" * 2 



01 



Fig. 3. Average values of the number of bacteria according to 

 data for 2 years of standard observations. 



126 



