CHAPTER 1 



munic i pal 

 29 7o 



dredge 



urban 



ORGANIC CARBON 



municipal 

 40% 



industrial 



13 7. 



dredge 



chemical 



gauged 

 25 % 



dredge 

 12% 



NITROGEN 



muni ci pal 

 35 % 



urban 

 4% 



PHOSPHORUS 



FIGURE 1-7 



-Average daily percentage contributions of organic carbon, nitrogen, ind phosphorus entering New York Bight from various sources. 



(Mueller et al. 1976) 



11 



