| D008452 |
Maximum Allowable Concentration |
The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed) |
Maximum Permissible Exposure Level,MPEL,Maximum Permissible Exposure Concentration,Allowable Concentration, Maximum,Allowable Concentrations, Maximum,Concentration, Maximum Allowable,Concentrations, Maximum Allowable,MPELs,Maximum Allowable Concentrations |
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| D014131 |
Trace Elements |
A group of chemical elements that are needed in minute quantities for the proper growth, development, and physiology of an organism. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Biometal,Biometals,Trace Element,Trace Mineral,Trace Minerals,Element, Trace,Elements, Trace,Mineral, Trace,Minerals, Trace |
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| D014873 |
Water Pollutants |
Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading. |
Water Pollutant,Pollutant, Water,Pollutants, Water |
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| D014874 |
Water Pollutants, Chemical |
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. |
Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water |
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