A cross-sectional survey was carried out in order to study the relationship
between Kashin-Beck disease and drinking water. The average volume of the
water containers was larger in families unaffected by the disease. Organic
material was measured by ultraviolet (UV) spectroscopy. The UV absorbency w
as significantly lower in drinking water of unaffected families. Thus, the
organic material in drinking water may play a role in the pathogenesis of K
ashin-Beck disease.