Reid MHacker CSMarine Pollution Bulletin2010-02-152010-02-151982http://hdl.handle.net/1969.3/23117387-389Lead and cadmium concentrations were measured in eggs and in bone, kidney, liver and stomach contents fo downy young, prefledgling, and adult Laughing Gulls collected from Matagorda Bay and Galveston Bay, Texas. Matagorda Bay drains a rural, moderately industrialized region while the Galveston Bay area is heavily urbanized and industrialized. Lead levels were lower in birds from Matagorda Bay and decreased in birds from Galveston Bay between 1977 and 1980. Cadmium levels were also lower in birds from Matagorda Bay but increased over the three-year period in those from Galveston Bay. The temporal decrease in lead may be associated with such environmental control efforts as reduced point source emissions and substitution of unleaded gasolineASW,Matagorda BayASW,Galveston BayBirdsbonebonesCadmiumEggsGalveston BayGullsHeavy metalskidneykidneysLarus atricillaLaughing gullLeadlevelsliverO 4020 POLLUTION - ORGANISMSPollution monitoringPublic healthQ1 01503 Characteristics,behavior and fatestomachstomach contentTexasUSAUSA,Texas,Matagorda BayUSA,Texas,Galveston BayX 24163 MetabolismJournal