Impact of Fractal Dimension of Osmanthus Fragrans Leaves Induced by Different Levels of Formaldehyde Air Pollution / 环境与健康杂志

ABSTRACT

Objective To research the impact of formaldehyde air pollution on fractal characteristics of Osmanthus Fragrans leaves and the application of fractal theory in formaldehyde air pollution monitoring.Methods As the experimental materials, dwarfed potted Osmanthus Fragrans were exposed to formaldehyde at different doses of 0.001,0.005,0.025,0.125,0.625 mg/m3 by air.After new leaves matured, the vein samples were first produced;then their fractal dimension was analyzed with fractal theory and the computer system.Thirdly, the quantitative analysis of the variability degree was made and dose-response relationship among the newborn leaves of every dose group was researched.Results The corresponding correlation coefficients of leaf fractal dimension were more than 0.997 0(P