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20 Waste and Recycling F. Management and Disposal of Waste Chemicals This section contains information regarding the collection and disposal of unwanted chemicals from laboratories, shops, farms, maintenance areas, and custodial spaces at Iowa State University (ISU). It explains proper handling of pesticides, batteries, fluorescent lamps, mercury containing items, and used oil. Chemicals in Laboratories and Other Locations Many unwanted chemicals are dangerous and may cause harm to persons or the environment if improperly discarded. Hazardous waste management regulations exist to protect people fromharm, either from direct exposure to dangerous chemicals, or indirect exposure through environmental contamination. Specific university requirements for the management and disposal of waste chemicals are derived from federal, state and local rules. Employees are responsible for following the policies outlined in this section. Prohibition of Improper Disposal University employees and students are prohibited from improperly disposing of chemicals. Local, state, and federal regulations can be complicated, Environmental Health and Safety (EH&S) collects and properly disposes of unwanted chemicals on campus. Contact EH&S for specific guidance if your situation is unique. Key Components of Unwanted Chemical Management There are “4 L’s” for the management of unwanted chemicals: • Lid ¤ Close the container so it won’t spill if tipped over (no foil, parafilm, etc.) ¤ Vent as necessary to prevent overpressure ¤ Remove funnel after use • Label ¤ Label the container “Hazardous Waste” ¤ Identify the hazards, such as flammable, corrosive, toxic, etc. ¤ Describe the contents ¤ Spell out abbreviations • Leaks ¤ Use waste containers that are compatible with the contents