The "maximum workplace concentration" is the maximum permitted concentration of a substance (gas, vapor, suspended matter) at which no health damage is to be expected, even if the concentration is usually 8 hours a day or a maximum of 40 hours a week is exposed. Since 2005, there has been a new limit value concept with the terms AGW (Occupational Exposure Limit) and BGW (Biological Limit Value). Also at the winemaking
such limit values apply, for example bez. Sterilization with ozone
, See also regarding substance limits below ADI
(acceptable daily intake).