H410 — Very toxic to aquatic life with long lasting effects
The GHS hazard statement for hazardous to the aquatic environment — chronic, category 1. Here is what it means, the label elements that travel with it, and the substances that carry it.
At a glance
| Official statement | Very toxic to aquatic life with long lasting effects. |
| Hazard class | Hazardous to the aquatic environment — chronic |
| Category | Category 1 |
| Signal word | Warning |
| Pictogram |  GHS09 — Environment |
What it means
Harmful to aquatic life over longer exposures, factoring in whether the substance degrades or accumulates. Environmental classes appear on SDSs and labels, but in the US they sit with EPA and DOT rather than OSHA.
When H410 is present, H400 ("Very toxic to aquatic life") is not stated separately on the label — the stronger statement covers it.
Precautionary statements paired with H410
When the engine writes SDS Section 2 or a container label for a product carrying H410, these are the P-codes it assigns, in the official Annex 3 groups:
Substances that carry H410
1,114 of the 4,225 substances in our database carry H410 when classified in pure form — recognizable examples:
- sodium hypochlorite, solution Cl active — CAS 7681-52-9
- naphthalene — CAS 91-20-3
- (-)(3S,4R)-4-(4-fluorophenyl)-3-(3,4-methylenedioxy-phenoxymethyl)-N-benzylpiperidine hydrochloride — CAS 105813-13-6
- (+)-(1S,2S,3S,5R)-2,6,6-trimethylbicyclo[3.1.1]heptane-3-spiro-1'-(cyclohex-2'-en-4'-one) — CAS 133636-82-5
The engine writes these for you.
When SDS HQ authors an SDS or a container label, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.