Nicholson W J, Rohl A N, Weisman I, Selikoff I J
IARC Sci Publ. 1980(30):823-7.
Measurements were made of chrysotile concentrations in buildings with asbestos-lined return air plenums, in buildings with damaged asbestos surfacing material, in the houses of asbestos workers, and around buildings while asbestos-containing fireproofing material was being sprayed on steelwork. The data obtained demonstrate significant environmental contamination by asbestos: 43/89 air samples exceeded 50 ng/m3, although only 2/89 samples exceeded 1000 ng/m3. These findings should prompt appropriate control or remedial action.
有衬石棉回风静压箱的建筑物、石棉表面材料受损的建筑物、石棉工人的住所，以及在钢结构上喷涂含石棉防火材料时建筑物周围的区域。所获得的数据表明石棉对环境造成了严重污染：89个空气样本中有43个超过了50纳克/立方米，尽管只有2/89的样本超过了1000纳克/立方米。这些发现应促使采取适当的控制或补救措施。
