Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Environmental hazard · Hazardous to the aquatic environment - chronic

H410 — Very toxic to aquatic life with long lasting effects

Environmental hazard statements describe harm to the aquatic environment, the ozone layer or the climate. 1,032 substances with a harmonised EU classification carry this code.

EU CLP: currentUS OSHA HazCom: currentUS HazCom 2012: currentUN GHS: current

01 · Wording

What H410 says

Official

Very toxic to aquatic life with long lasting effects.

Source

CLP Annex III · Environmental hazards

Classification
GHS09 pictogram — environment

Hazardous to the aquatic environment - chronic GHS chapter 4.1

Category 1 · pictogram GHS09 (environment) · signal word Warning

UN GHS history

Unchanged since 2009.

Rev.3 2009
Rev.4 2011
Rev.5 2013
Rev.6 2015
Rev.7 2017
Rev.8 2019
Rev.9 2021
Rev.10 2023
Rev.11 2025
wording never changed

Present in every UN GHS edition from Rev.3 (2009) to Rev.11 (2025), with the same wording throughout.

Nine editions of the UN model text, 86 hazard statements, 19 of which ever moved. Read the full story in what changed in UN GHS Rev.11.

02 · Languages

H410 in the 24 official EU languages

A label put on the market in an EU country must carry the wording of that country's own language version of CLP — not a translation of the English one. These 24 lines are quoted from the consolidated regulation, Annex III, and are the text to print.

LanguageOfficial wording of H410
BG български Bulgarian Силно токсичен за водните организми, с дълготраен ефект.
ES español Spanish Muy tóxico para los organismos acuáticos, con efectos nocivos duraderos.
CS čeština Czech Vysoce toxický pro vodní organismy, s dlouhodobými účinky.
DA dansk Danish Meget giftig med langvarige virkninger for vandlevende organismer.
DE Deutsch German Sehr giftig für Wasserorganismen mit langfristiger Wirkung.
ET eesti Estonian Väga mürgine veeorganismidele, pikaajaline toime.
EL ελληνικά Greek Πολύ τοξικό για τους υδρόβιους οργανισμούς, με μακροχρόνιες επιπτώσεις.
EN English English Very toxic to aquatic life with long lasting effects.
FR français French Très toxique pour les organismes aquatiques, entraîne des effets néfastes à long terme.
GA Gaeilge Irish An-tocsaineach don saol uisceach, le héifeachtaí fadtréimhseacha.
HR hrvatski Croatian Vrlo otrovno za vodeni okoliš, s dugotrajnim učincima.
IT italiano Italian Molto tossico per gli organismi acquatici con effetti di lunga durata.
LV latviešu Latvian Ļoti toksisks ūdens organismiem ar ilgstošām sekām.
LT lietuvių Lithuanian Labai toksiška vandens organizmams, sukelia ilgalaikius pakitimus.
HU magyar Hungarian Nagyon mérgező a vízi élővilágra, hosszan tartó károsodást okoz.
MT Malti Maltese Tossiku ħafna għall-organiżmi akwatiċi b'mod li jħalli effetti dejjiema.
NL Nederlands Dutch Zeer giftig voor in het water levende organismen, met langdurige gevolgen.
PL polski Polish Działa bardzo toksycznie na organizmy wodne, powodując długotrwałe skutki.
PT português Portuguese Muito tóxico para os organismos aquáticos com efeitos duradouros.
RO română Romanian Foarte toxic pentru mediul acvatic cu efecte pe termen lung.
SK slovenčina Slovak Veľmi toxický pre vodné organizmy, s dlhodobými účinkami.
SL slovenščina Slovenian Zelo strupeno za vodne organizme, z dolgotrajnimi učinki.
FI suomi Finnish Erittäin myrkyllistä vesieliöille, pitkäaikaisia haittavaikutuksia.
SV svenska Swedish Mycket giftigt för vattenlevande organismer med långtidseffekter.

Source: CELEX:02008R1272-20260501, Annex III. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic. Irish is one of the 24 official languages and its H and P texts are printed inside the multilingual Annex tables, but no consolidated CLP has ever been published in Irish — which is why an Irish-primary label cannot be built here.

03 · Legal status

Where H410 is current

GHS is a United Nations model text, revised every two years, and each jurisdiction adopts a revision on its own timetable. A code can be legally current in one system and deleted in another — that is normal, not an error.

JurisdictionBasisStatus of H410
EU CLP Regulation (EC) 1272/2008 CLP Annex IV, Part 2 (consolidated) Current
US OSHA HazCom 29 CFR 1910.1200 Appendix C UN GHS Rev.7 (final rule of 20 May 2024) Current
US HazCom 2012 legacy · GHS Rev.3 UN GHS Rev.3, Annex 3 Current
UN GHS Rev.11 (2025) UN GHS Rev.11, Annex 3 Current

Currently in force under: EU CLP, US OSHA HazCom, US HazCom 2012, UN GHS. Sources: EU CLP · US OSHA HazCom · US HazCom 2012 · UN GHS

04 · Substances

Substances carrying H410

Every entry whose harmonised CLP Annex VI classification includes this hazard statement. Substances with a reference page here open on this site; the rest open on ghssymbols.com. Of these, 86 are group entries such as “salts of picric acid” or “beryllium compounds” — Annex VI gives them no CAS number, so they are listed by Index No and have no page of their own.

1032 of 1032 shown

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All hazard statements

The full list of H-codes with the jurisdiction switch lives on the hazard statements hub. For what to do about the hazard, see precautionary statements (P-codes).

Wording quoted from the regulation named above. Substance counts come from harmonised classifications in CLP Annex VI — the statements on a real product also depend on the supplier's own classification. Always check the supplier safety data sheet.

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