2.4.4 U.S. Naw 



The Navy has initiated the monitoring of organotins - particularly tri- 

 and dibutyltin species in several harbors where Navy ships are based. 

 These include Chesapeake Bay where monitoring programs are in place in 

 both the Maryland portion, principally around Annapolis and in the Severn 

 River, and in the Virginia portion of the Bay, principally around Norfolk 

 and the Elizabeth River. Between 1984 and 1986 organotin baseline 

 measurements were made in Portsmouth, NH, New London/Groton, CN, 

 Philadelphia, PA, Charleston, SC, and Mayport Basin and St. John's River, 

 FL an the East Coast. On the West Coast, baseline surveys were conducted 

 in Puget Sound, WA, San Francisco Bay. Ios Angeles/Long Beach and San 

 Diego Bay, CA, and Pearl Harbor, HI. Intensive monitoring has been 

 conducted in San Diego, Pearl Harbor and the Norfolk region of Chesapeake 

 Bay. 



The Navy has had ongoing research and monitoring programs for TBT since 

 the early 1980's. The current focus of the Navy studies is on the fate 

 and behavior of organotin compounds and the subsequent biological effects 

 of these compounds in ecosystems. Extensive research has been conducted 

 by the U.S. Navy through the Naval Ocean Systems Center (NOSC) and the 

 David W. Taylor Naval Ship Research and Development Center at Annapolis. 

 Table 2.4 presents a listing of the research projects that the Navy has 

 planned for the next several years. 



11-25 



