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International Mussel Watch 



Coastal Chemical Contaminant 

 Monitoring Using Bivalves 



20°N 



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International Mussel Watch 

 Initial Implementation Phase 



Field sampling is currently underway 

 (Nov 1991-Sept 1992) and bivalve samples 

 have been collected at the indicated (•) stations 

 The entire South American, Central 

 American and Caribbean Island coastline 

 will eventually be sampled (o) and the samples 

 analyzed for chlorinated hydrocarbon biocides. 



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- 20°S 



40°S 



J L 



120°W 



100°W 



80°W 



J L 



60°S 



60°W 



40°W 



