CHEM120 (Liberal Arts) Environmental Chemistry 3 hrs. 3 crs. An introduction to chemically-related environmental problems. Sources of pollution, health and material effects, and economic factors. Air and water pollution, solid waste disposal, pesticides, agricultural chemicals, and food additives. Solutions to environmental problems.Not credited toward fulfillment of Chemistry major requirements. Not offered on a regular basis. Not open to students with credit in CHEM 101. Availability to be determined by the department.