Chemical Pollution Of Water
(Science Source). Trace chemicals in water are a serious problem to human health and are routinely monitored by regulatory agencies. This kit gives students the opportunity to test for pH (hydrogen ion concentration), and for concentrations of copper, sulfide, lead, ammonium, oil, and nitrate/nitrite, using simple test paper determinations. Three "unknown" solution mixtures are supplied for use in independent student determinations. Excess test materials can be used for testing commercial products or environmental samples. Sufficient materials are provided to permit dividing the class into at least four groups to run the tests.