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DBpedia 2016-04

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Matches in DBpedia 2016-04 for { ?s ?p "In environmental toxicology, effects range low (ERL) and effects range median (ERM) are specific chemical concentrations that are derived from compiled biological toxicity assays and synoptic sampling of marine sediment. These numerical values are sediment quality guidelines that were developed by Long and Morgan for the National Oceanic and Atmospheric Administration's (NOAA) National Status & Trends program as informal tools in screening sediment. ERL and ERM are considered guidelines to help categorize the range of concentrations in sediment which effects are scarcely observed or predicted (below the ERL) and the range above which effects are generally or always observed (above the ERM). These guidelines are used for screening sediments for trace metals and organic contaminants.NOAA’s National Status and Trends program provides large amounts of sediment chemistry data. Due to a lack of national criteria for chemical concentrations in sediment, NOAA developed sediment quality guidelines (SQGs) that would enable them to evaluate if a concentration of a contaminant may have toxicological effects. They are not regulatory criteria in any way and should not be used as such. ERL/ERM are just sediment quality guidelines that have been developed."@en }

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