关键词: 塑胶跑道面层, 二甲基亚砜, 致突变性, Ames试验

Abstract:

OBJECTIVE: To explore the mutagenicity of five different synthetic sport surface chemicals. METHODS: Plastic racetracks from:silicon PU stadium,permeable running tracks,EPDM running tracks,mixed running tracks and prefabricated roll,were extracted using water and dimethyl sulfoxide (DMSO),and were tested in the Ames assays. RESULTS: Using tester strains TA97a and TA100 with S9,the revertant colonies of DMSO-extracted products from permeable running tracks surface were two times higher than that in the controls. Using the same tester strains but with or without S9, the revertant colonies of DMSO-extracted EPDM running tracks surface were also two times higher than that in the controls. On the other hand,water-extracted products did not induce mutagenicity. CONCLUSION: DMSO-extracted products from both permeable and EPDM running tracks surfaces were capable of inducing mutagenicity.

Key words: plastic running tracks surface, dimethyl sulfoxide, mutagenicity, Ames test