Harmful substance
Substance that, following contact with an organism can cause illness or adverse effects either at the time of exposure or later in the life of the present and future generations
Glossary Source
JRC EU CBRNe Glossary
(
EU Glossary on Chemical, Biological, Radiological, Nuclear, and Explosive risks
)
https://publications.jrc.ec.europa.eu/repository/bitstream/JRC128863/JRC128863_01.pdf