LOAEL
The lowest observed adverse effect level (LOAEL) is the lowest level of a substance that has been observed to cause harm in an exposed population.
All official European Union website addresses are in the <b>europa.eu</b> domain All official European Union website addresses are in the <b>europa.eu</b> domainThe lowest observed adverse effect level (LOAEL) is the lowest level of a substance that has been observed to cause harm in an exposed population.