Airborne Fiber Concentration and Size Distribution of Mineral Fibers in Area with Serpentinite Outcrops in Aichi Prefecture, Japan

摘要: Airborne fiber concentrations and size distributions of both asbestos nonasbestos fibers were determined at property boundaries 4 serpentinite quarries producing crushed stone (quarry boundary), 10 sites within km the area with outcrops (serpentinite area), 2 in a reference area. The was identified 7 rock 3 soil samples collected geometric means airborne longer than 0.2 μm length were: 384 447 fibers/liter (f/L) quarry boundary (in operation), 12 124 f/L closed), 5 103 area, less 59 respectively. There significant difference among areas. Ttremolite/actinolite found chrysotile stones. tremolite/actinolite higher those Tremolite/actinolite also soils. no areas arithmetic distribution fibers.