The AECshort forAcceptable Exposure Concentration specifies the maximum estimated concentration of a substance at which no unacceptable local effects are expected to occur in the respiratory tract, on the skin or in the gastrointestinal tract. The AECshort forAcceptable Exposure Concentration is currently derived as a route-specific value (by inhalation, possibly oral and/or dermal) primarily for biocidal agents. The AECshort forAcceptable Exposure Concentration is used to assess the risk for the overall population and users and can relate to exposure times of different lengths (short-term, medium-term and long-term). Common units include mgshort formilligram/L, %, ppm, mgshort formilligram/cm²short forsquare centimetre, etc.
Related terms: Threshold Limit Value (TLV), Occupational Exposure Limit (OEL)