Guide 162: Radioactive Materials (Low to Moderate Level Radiation)

ERG 2024 Guide 162, page 1GUIDE 162 Radioactive Materials (Low to Moderate Level Radiation) POTENTIAL HAZARDS HEALTH • Radiation presents minimal risk to transport workers, emergency response personnel and the public during transportation accidents. Packaging durability increases as potential hazard of radioactive content increases. • Undamaged packages are safe. Contents of damaged packages may cause higher external radiation exposure, or both external and internal radiation exposure if contents are released. • Low radiation hazard when material is inside container. If material is released from package or bulk container, hazard will vary from low to moderate. Level of hazard will depend on the type and amount of radioactivity, the kind of material it is in, and/or the surfaces it is on. • Some material may be released from packages during accidents of moderate severity but risks to people are not great. • Released radioactive materials or contaminated objects usually will be visible if packaging fails. • Some exclusive use shipments of bulk and packaged materials will not have RADIOACTIVE labels. Placards, markings and shipping papers provide identification. • Some packages may have a RADIOACTIVE label and a second hazard label. The second hazard is usually greater than the radiation hazard; so follow this GUIDE as well as the response GUIDE for the second hazard class label. • Some radioactive materials cannot be detected by commonly available instruments. • Runoff from control of cargo fire may cause low-level pollution. • • • • FIRE OR EXPLOSION Some of these materials may burn, but most do not ignite readily. Uranium and Thorium metal cuttings may ignite spontaneously if exposed to air (see GUIDE 136). Nitrates are oxidizers and may ignite other combustibles (see GUIDE 141). PUBLIC SAFETY CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. Priorities for rescue, life-saving, first aid, fire control and other hazards are higher than the priority for measuring radiation levels. Radiation Authority must be notified of accident conditions. Radiation Authority is usually responsible for decisions about radiological consequences and closure of emergencies. Stay upwind, uphill and/or upstream. Keep unauthorized personnel away. Detain or isolate uninjured persons or equipment suspected to be contaminated; delay decontamination and cleanup until instructions are received from Radiation Authority. • • • • • PROTECTIVE CLOTHING • Positive pressure self-contained breathing apparatus (SCBA) and structural firefighters’ protective clothing will provide adequate protection. EVACUATION Immediate precautionary measure • • • Isolate spill or leak area for at least 25 meters (75 feet) in all directions. Large Spill Consider initial downwind evacuation for at least 100 meters (330 feet). Fire When a large quantity of this material is involved in a major fire, consider an initial evacuation distance of 300 meters (1000 feet) in all directions. Page 254 ERG 2024#

ERG 2024 Guide 162, page 2Radioactive Materials (Low to Moderate Level Radiation) GUIDE 162 EMERGENCY RESPONSE FIRE • Presence of radioactive material will not influence the fire control processes and should not influence selection of techniques. • If it can be done safely, move undamaged containers away from the area around the fire. • Do not move damaged packages; move undamaged packages out of fire zone. Small Fire • Dry chemical, CO2, water spray or regular foam. Large Fire • Water spray, fog (flooding amounts). • Dike runoff from fire control for later disposal. SPILL OR LEAK • Do not touch damaged packages or spilled material. • Cover liquid spill with sand, earth or other non-combustible absorbent material. • Dike to collect large liquid spills. • Cover powder spill with plastic sheet or tarp to minimize spreading. FIRST AID Refer to the “General First Aid” section. Specific First Aid: • Medical problems take priority over radiological concerns. • Use first aid treatment according to the nature of the injury. • Do not delay care and transport of a seriously injured person. • In case of contact with substance, wipe from skin immediately; flush skin or eyes with running water for at least 20 minutes. • Injured persons contaminated by contact with released material are not a serious hazard to health care personnel, equipment or facilities. In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section. ERG 2024 Page 255#