GHS hazard statement
H411: Toxic to aquatic life with long lasting effects
- H411
- Environmental hazards
- No signal word
H411 means “Toxic to aquatic life with long lasting effects”. It is a GHS hazard statement for Hazardous to the aquatic environment, long-term hazard (Category 2), shown with GHS09.
Hazard class and category
| Hazard class | Category | Pictogram | Signal word | UN transport class |
|---|---|---|---|---|
| Hazardous to the aquatic environment, long-term hazard | Category 2 |  | No signal word | Class 9 |
What H411 means
Long-term (chronic) aquatic hazard describes harm to aquatic life from continued exposure, taking into account chronic toxicity data and whether the substance is rapidly degradable or likely to bioaccumulate.
Releases can cause lasting harm to aquatic ecosystems, because the substance may persist or build up in organisms.
What to do
Avoid release to the environment, collect spillage, keep out of drains and waterways, and dispose of the contents and container through an approved waste disposal plant.
This is general guidance for the hazard class. The safety data sheet for your product always takes precedence.
Precautionary statements for H411
The GHS lists these precautionary statements for this hazard. Which ones appear on a label depends on the supplier's classification.
Chemicals carrying H411
9 chemicals in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
H411 frequently asked questions
What does H411 mean?
H411 means "Toxic to aquatic life with long lasting effects". It is a GHS hazard statement in the environmental hazards group, covering Hazardous to the aquatic environment, long-term hazard (Category 2).
Which pictogram goes with H411?
H411 is shown with GHS09 (Environment).
What signal word goes with H411?
H411 has no signal word in the data we compile.
Which precautionary statements go with H411?
The GHS data lists 3 precautionary statements for H411, including P273, P391, P501. They cover prevention, response, storage and disposal. The full list is on this page.
Hazard statements describe the hazard of a classified substance or mixture. The classification of a specific product can differ, so use the supplier's SDS.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)