Hygenic Study of Afghanistan Geologic Situation of the Afghan Cities

Abstract

The writer treated herewith geologic situation of the Afghanistan in relation with hygenic conditions of them.
The ground of the prinicpal cities of Afghanistan is covered with a kind of loess-an aeolian soil, silt in grain size and light grey in color. This loess easily changes into mud during rainy season, and is very absorbent in other seasons. Afghan houses in the city have their toilets open to street or lane. Under these conditions, contamination of this soil on the ground is general case in the Afghan cities.
In dry season the loess is often blown away into the sky as dust having possibility to ditribute some parasites.
Suface water in the cities is generally contaminated.
In some parts of the cities, ground water level is so shallow to from swamps, but after hygenic efforts of Afghan Government and WHO, there is very seldom case of malaria to-day in Afghanistan.
Ground water in those cities is generally high in its calcium content.