Sewage water pollution

Prior the introduction of the sewage systems, the number of individuals suffering from diseases such as hepatitis, typhoid or paratyphoid fever was considerably larger. Sewers hinder the dissemination of infections and keep our bodies sound. Without them or without...

Industrial water pollution

In the eighteen century something amazing happened. The manual production was substituted by mechanical one. Factories were built and different chemical processes facilitated the entrepreneur. The workers were also disburdened from numerous physical activities....