Effect of Cement Plant Dusts to Human Body Normal Strains

This paper studied the growth effect mechanism of cement plant dusts on three kinds of body normal strains- Escherichia coli, Staphylococcus epidernidis and Streptococcus mitis. The phase, major chemical composition and granularity distributing of the experiment dust were analysis and the change of number of index bacterial colonies, pH, glucose (GLU) and electrolyte relative to the controls were observed. On the other hand, we studied the bacterial form and interface act between dusts and bacteria through SEM analysis. Results showed that the reciprocity of dust and bacteria increases the wastage of GLU. But the pH values have a little increase because of the great add of Ca²⁺ dissolving quantity. The experiment tubes with dust have more bacterial colonies contrast to the controls. Cement plant dust has the obvious promote effect to the growth of body normal flora and take some effect on the balance of them. So it will bring harm to human body.