Aquatic Chronic 2: H411 EUH208
H411: Toxic to aquatic life with long-lasting effects. See the upside down fish in the hazard pictograms, see also Wikipedia: https://en.wikipedia.org/wiki/GHS_hazard_statements
Presumably not very hazardous in the quantities concerned (perhaps someone has better information?) but as it appears to be a wholly unnecessary product why put any extra stress on the environment at all?
