Dipartimento di Fisica Nucleare e Teorica, Università degli Studi di Pavia, Via A. Bassi 6, 1-27100, Pavia, Italy.
Environ Sci Pollut Res Int. 1997;4(2):91-8. doi: 10.1007/BF02986286.
A few case studies will be presented involving both radioactive and chemical pollution at small, medium, and large space-time scales. Reported are recent advances in the field of environmental pollution involving the use of fractals and multifractals. The mathematical tools proposed here may offer new perspectives for investigating many of the problems of nonlinear variability which commonly arise when dealing with pollutants, such as the presence of outliers and the sparseness of the sampling networks. They may also lead to a simplification of the models adopted for studying natural phenomena, thanks to a scaling approach. Finally, they may provide parameters whose values are directly related to the nonlinear dynamics involved in the pollutant distribution in the environment which, in turn, may be relevant for computer simulation and epidemiological or risk assessment purposes.
将呈现一些涉及小、中、大时空尺度的放射性和化学污染的案例研究。报告了涉及分形和多重分形应用的环境污染领域的最新进展。这里提出的数学工具可能为研究污染物出现的离群值和采样网络稀疏等常见非线性变化问题提供新的视角。由于采用了缩放方法，它们也可能简化用于研究自然现象的模型。最后，它们可以提供与环境中污染物分布所涉及的非线性动力学直接相关的值，这可能有助于计算机模拟以及流行病学或风险评估目的。
