- Therelationof1-hydroxypyreneinurinewithambientPAHswasinvestigatedwithseveralgroupsofvolunteerscarryingpersonalairsamplersandstationarysamplers.Bedmaterialsamplers,asfirstdeveloped,maybedividedintothreetypes.designanduseofquantitativesamplersforbenthi...
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