Assessment of trace element geochemistry of Hampton Roads harbor and lower Chesapeake Bay area sediments

摘要: Acid extractable Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb. and Zn were determined in sediments from the Inner Virginia Shelf, shipping channels lower Chesapeake Bay Hampton Roads, Virginia, harbor system. Data evaluated by a variety of techniques Levels Pb, exceeded average crustal abundances for most study sites. Cumulative frequency curves suggested that there two major populations all metals perhaps third smaller, one Mn Plots metal vs Fe indicated no anthropogenic inputs shelf channel sites, but influences several inshore Enrichment factor calculations showed enrichment with respect to sites Cu industrial A recommendation this evaluation environmental geochemical data is utilize mean concentrations, cumulative plots, and/or when evaluating pollution status sediments.