chromium has been classified as a potential carcinogen and has high and acute toxicity to humans animals plants and microorganisms. consequently chromium contaminant in groundwater chromium ore processing residue (copr) and sediment represents a significant environmental and public health concern .
chromite ore processing in hudson county ends. during its lifetime hudson county's chrome industry generated approximately 2 million tons of residue which was later determined to be a hazardous material. 1982 jersey city and new jersey department of environmental protection begin identifying chromite ore processing residue sites. 1982-89
gold miners wash their muddy hands in the drip-water falling from the ceiling of an active tunnel. water continuously leaks through the cracked stone walls of the tunnels and the miners are soaked
chromite ore processing residue occurs at over 130 sites in hudson county new jersey. many of these sites are in urban residential areas. this waste is a result of 70 years of chromate and bichromate chemical manufacturing. at least 15% of the sites contain total chromium concentrations greater
to hexavalent chromium. the highly soluble hexavalent chromium was then removed from the copr (left over chromium ore processing residue) leaving un-oxidized trivalent chromium and slow-dissolving hexavalent chromium compounds [burke et al. 1991]. in the absence of information on the toxicity of hexavalent chromium copr was subsequently used
4 hours ago. chelsea ingram has politics slowing down harbor point project. by pat wjz archive video from 1989 shows harbor point prior to the demolition of a chromium ore processing plant
even though the alloy has been blended with the correct percentage of chromium and nickel the steel stock used for most of this type of product is recycled and varies in the degree to which it has been re-refined so impurity pockets abound in some of the cheaper stuff despite the "grade" of stainless claimed.
conversion of chromium ore processing residue to chrome steel (december 2007) full report; this was done in response to concerns voiced by the hudson county community where most of the chrome ore processing residue waste sites are located. an internal dep workgroup was formed and chaired by eileen murphy ph.d. (dsrt).