Chemical elements and element groups
Characterizing contaminant concentrations with depth by using the USGS well profiler in Oklahoma, 2003-9 [ More info] Use of specialized sampling equipment to study public water supply wells, with examples showing Arsenic in two aquifers.
China's rare-earth industry [ More info] Reviews production, consumption, and reserves and important policies and regulations regarding production and trade of rare earths, including recently announced export quotas.
Chloride control and monitoring program in the Wichita River Basin, Texas, 1996-2009 [ More info] Chloride concentrations in this river have historically been high due to natural saltwater springs and seeps from geologic formations. We monitor the water to help assess the progress of human efforts designed to mitigate this problematic salinity.
Chromium makes stainless steel stainless [ More info] Explains how we use chromium, the types of mineral deposits in which we find it, and the economic factors affecting supply and demand of this commodity.
Cobalt-For strength and color [ More info] Explains how we use cobalt, where it comes from, and whether we have enough available.
Alphabetical Index of Topics
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