The dust derived from an aluminum electrolytic plant was collected on a filter, then extracted with benzene. The benzene soluble material was separated into five fractions, namely organic acid, organic alkali, aliphat...The dust derived from an aluminum electrolytic plant was collected on a filter, then extracted with benzene. The benzene soluble material was separated into five fractions, namely organic acid, organic alkali, aliphatic hydrocarbon, polycyclic aromatic hydrocarbon and polar compounds. The mutagenic activities of these fractions were examined with two strains of Salmonella typhimurium mutants. It was demonstrated that the dust organic extract showed a very strong mutagenic activity. Among the five fractions tested, three fractions, namely organic acid, polycyclic aromatic hydrocarbon and polar compounds, played an important role in the mutagenic activity of the dust organic extract. The other two fractions, organic alkali and aliphatic hydrocarbon had no mutagenic activities. Therefore, dust abatement is an important measure in aluminum plants for controlling carcinogens, mutagens and protecting the environment and human health.展开更多
文摘The dust derived from an aluminum electrolytic plant was collected on a filter, then extracted with benzene. The benzene soluble material was separated into five fractions, namely organic acid, organic alkali, aliphatic hydrocarbon, polycyclic aromatic hydrocarbon and polar compounds. The mutagenic activities of these fractions were examined with two strains of Salmonella typhimurium mutants. It was demonstrated that the dust organic extract showed a very strong mutagenic activity. Among the five fractions tested, three fractions, namely organic acid, polycyclic aromatic hydrocarbon and polar compounds, played an important role in the mutagenic activity of the dust organic extract. The other two fractions, organic alkali and aliphatic hydrocarbon had no mutagenic activities. Therefore, dust abatement is an important measure in aluminum plants for controlling carcinogens, mutagens and protecting the environment and human health.
