1. C ONTAMINANTS IN W ATER Applied Chemistry

2. Contaminants in water can include Heavy Metal Ions, molecular substances, solvents, and inappropriate levels of pH, dissolved oxygen, and temperature I.Heavy Metal Ions – these atoms have greater mass than the masses of essential metallic elements, and are harmful to humans and other organisms - Interfere with normal protein functioning

3. Heavy MetalEffects Lead (Pb 2+ )Learning difficulties, Irritability, Loss of appetite, Weight loss, Sluggishness and fatigue, Abdominal pain, Vomiting, constipation, Hearing loss Mercury (Hg)Kidney, respiratory, reproductive, neurological problems that can be long-term / life-long Cadmium (Cd)Lung, breast, kidney cancer; high blood pressure NickelLung, liver, & kidney cancers, cardiovascular disease, brain damage, developmental deficits in childhood, high blood pressure Chromiumasthma, eye damage, perforated eardrums, respiratory irritation, kidney damage, liver damage, lung problems, nose irritation and damage, lung cancer, skin irritation Arsenic skin, lung, bladder, and kidney cancers; skin changes such as thickening and pigmentation. CopperLiver and kidney damage, mood swings, irritability, depression, fatigue, excitation, difficulty focusing, feeling out of control

4. US Environmental Disasters Flint, Michigan water crisis Hinckley, California Lois Gibbs on Love Canal, Part 1 Lois Gibbs on Love Canal, Part 2 Lois Gibbs on Love Canal, Part 3 Woburn, Massachusetts