工作场所苯等有机溶剂浓度超标2 ~ 25倍。
Benzene concentrations in work place were2 ~ 25times over hygienic standard.
方法：调查深圳市福田区工业企业有机溶剂使用情况，并对生产环境空气有机溶剂浓度进行测定。
Methods: Investgating use status of organic solvent in factories, and monitoring concentration of organic solvent in production environment.
低浓度有机溶剂的存在有利于抑菌活性的提高。
Some organic solvents could improve its activity at low concentration.
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