31 



ATMOSPHERE 



Precipitation 



so 2 , so 4 " 



2- 



o 



u 

 v 



>, co 



- - 



■H 0) 



> co 



•h ^ 



4J Oi 



u 00 

 CO 



rH CO 



C3 OJ 

 O O 

 ■H C 



00 co 

 O O 



i— i (—i 

 o o 



V > 



H 2 So 



258 



c 



CD 



ao 

 o 



C CO 

 O OJ 

 -J CJ 



iJ 3 



c o 



so; 



partxcles 



CO 



u c 



•H O 



00 -H 



O CO 



rH CO 



O -H 



■h e 



33 CU 



CO 



CJ C 



■H O 



00 -H 



O CO 



rH CO 



Tl 



tH S 



33 0) 



CO 

 CO 



CO 

 0) 

 C/3 



so 2 idf so 2 SC^ SQf H 2 s, SO2 



t T I I T 



8 150 45 30 * 



i i .i. 



LAND 



* Total terrestrial, aquatic, and marine biological emission - 262 x 10 

 metric tons/vear. 



Fig. 2. Sources and sinks of sulfur compounds. Units are 10 metric tons 

 per year calculated as sulfate (from Cadle, 1975). 



