Trace metal residues in biota and sediments from Lake Pontchartrain, Louisiana

Beryllium Levels in the Mangrove Snail Nerita lineata and Surface Sediments from Peninsular Malaysia Mangrove Area

“…It was also reported to be apparently not bioaccumulated from sediment by bottom feeders such as clams and oysters from Lake Pontchartrain, USA (Byrne & DeLeon 1986). However, the Nerita snails which are deposit feeders was recorded to possess even lower (about 3-4 orders of magnitude lower), than the Be levels in the surface sediments.…”

A randomized controlled evaluation of absorption of silver with the use of silver alginate (Algidex) patches in very low birth weight (VLBW) infants with central lines

“…POTENTIAL FOR HUMAN EXPOSURE total fish), with a range of 0.004-1.900 mg/kg (Scow et al 1981). In Lake Pontchartrain, Louisiana (which is likely to receive substantial inputs of metals from municipal and agricultural activities) silver concentrations in clams and American oyster tissues were 0.4-2.4 mg/kg and 5.5 mg/kg (all dry weight), respectively (Byrne and DeLeon 1986) …”

“…Higher levels of silver have been detected in shellfish near industrial or sewage inputs (Byrne and DeLeon 1986;Pesch et al 1977;Thomson et al 1984) and are likely to occur in crops grown on sludgeamended soils, in the vicinity of smelters or mining operations, or in areas with naturally high background silver levels.…”

Agency for Toxic Substances and Disease Registry (ATSDR)

“…The most likely sources of higher than background levels of silver for the general population are ingestion of contaminated food and drinking water, The estimated 46,000 persons in the United States whose drinking water contains more than 50 µg/L silver (attributable to natural and/or anthropogenic sources) would have an estimated daily intake of at least 100 µg/day from water alone (Letkiewicz et al 1984). Higher levels of silver have been detected in shellfish near industrial or sewage inputs (Byrne and DeLeon 1986;Pesch et al 1977;Thomson et al 1984) and are likely to occur in crops grown on sludgeamended soils, in the vicinity of smelters or mining operations, or in areas with naturally high background silver levels.…”