What does chemical perturbation means?

12 December 2017 1 10K Report

I read one article and it refers "clays display a significant buffer effect with regard to chemical perturbations. The thickness of the clay that is chemically perturbed by the disposal facility is, therefore, very limited; " What does chemical perturbation means?

M. Farooq Wahab

Perturbations in this case, implies changes; clays display a significant buffer effect with regard to chemical changes. The thickness of the clay that is chemically changed by the disposal facility is, therefore, very limited.

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Science method

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