Sediment Sampling Update — Preliminary Total and Methyl Mercury Data (2002-12-11)

Slide presentation (Dec 11, 2002) reporting sediment coring and laboratory analyses for total mercury (HgT) and methylmercury (MeHg) in the South River. Covers sampling locations (Dooms' Dam and a tributary), core processing methods, depth profiles and HgT/MeHg results, notes that %MeHg decreases with depth, and discusses floodplain soils, outcroppings and bank erosion.