UN 3082 — Environmentally hazardous substance, liquid, n.o.s.
Placard: Miscellaneous. ERG Guide 171. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 3082 is Environmentally hazardous substance, liquid, n.o.s., a broad Class 9 environmental liquid entry assigned to ERG Guide 171. Exact liquid behavior must be verified.
Hazard overview: Environmentally hazardous liquid, n.o.s.; primary concern is release to drains, soil or waterways. Human toxicity, flammability and vapor hazards vary by exact substance. Liquid may float, sink or dissolve depending on formulation; do not assume behavior without SDS.
Response guidance: For UN 3082, isolate the area, avoid skin contact and use SCBA where vapor, dust, mist or fire is present. Contain runoff and verify controls with SDS and ERG 171.
Firefighter training notes: Training for UN 3082 should emphasize exposure routes, SCBA use, vapor/dust monitoring, decontamination, runoff containment and SDS/package verification. Use ERG 171, SDS and local SOP.
Regulatory context: Environmentally hazardous substance, liquid, n.o.s. is regulated as a hazardous material for transport and emergency response. Storage, reporting, exposure, waste and incident-notification duties depend on quantity, formulation and jurisdiction; verify shipping papers, SDS and authority guidance.
Storage & handling: Environmentally hazardous substance, liquid, n.o.s. should be stored in tightly closed compatible containers with ventilation, secondary containment, restricted access and SDS-based segregation from incompatible materials.
UN 3082 Quick Details
Common Hazards of UN 3082
- Environmentally hazardous liquid, n.o.s.; primary concern is release to drains, soil or waterways.
- Human toxicity, flammability and vapor hazards vary by exact substance.
- Liquid may float, sink or dissolve depending on formulation; do not assume behavior without SDS.
- Some liquids may burn or produce toxic smoke if involved in fire.
- Runoff may spread pollutant and create persistent aquatic contamination.
- Avoid unnecessary water streams that spread the release.
- Exact identity must be verified from shipping papers and SDS.
Chemical Identity & Physical Properties
Physical properties vary widely as this is a generic classification for liquid substances harmful to aquatic environments. Typically colorless to colored liquids at room temperature with varying odors depending on the specific substance.
| Also known as | Environmentally hazardous substance liquid NOSMarine pollutant liquidAquatic pollutant liquidHazardous to the environment liquid |
| Appearance | Physical properties vary widely as this is a generic classification for liquid substances harmful to aquatic environments. Typically colorless to colored liquids at room temperature with varying odors depending on the specific substance. |
| Flash Point | Varies by specific substance; generally not readily ignitable |
| Boiling Point | Varies by specific substance |
| Vapor Density | Varies by specific substance |
| Water Reactivity | Generally no significant reaction with water, though environmental contamination is a concern |
Fireground Response Guidance — UN 3082
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, dust, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 3082 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Avoid breathing vapor, dust, gas, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Prevent contaminated liquid, dust, runoff and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 171, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 3082 — Environmentally hazardous substance, liqUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.