Analysis of Asbestos Fibers in Water |
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106 Superior actual added allowed amosite amount amphibole fibers analysis appear asbestos fibers ashing Ashland Raw average background blank bottle calculated carbon chrysotile City collected compared composition concentration procedure concentrations contain Cook Creek Date detected determine direct filtration distribution Duluth dust effects electron elemental examined fiber length fiber mass fibers counted fibers present Fibers/1 fibers/grid field Figure filtration glass fiber filter grid Health identified included indicate iron laboratory Lake Superior liter loss material mean measured method Michigan microscope Millipore mineral Nuclepore filter number of fibers obtained optical particulate peak pore possible preparation procedure range removed reported SAED patterns scanning Seen SEM/EDS significant Source space stage standard Super-Q water Superior and Ashland Superior Finished Superior Raw Surface Table tailing taken technique Total Fibers unknown values water samples water supply Wisconsin yield