The Associate Committee on Scientific Criteria for Environmental Quality was established by the National Research Council of Canada in response to a mandate provided by the Federal Government to develop scientific guidelines for defining the quality of the environment. The concern of the NRC Associate Committee is strictly with scientific criteria. Pollution standards and objectives are the responsibility of the regulatory authorities and are set for the purpose of pollution control. These may b
In 1934 there was a report from the United States (Phillips and others) of chronic fluorosis in cattle resulting from the use of rock phosphate. In Great Britain fluorsis arising from atmospheric pollution was reported by Blackmore and others in 1948 and Burns and Allcroft in 1964. Most of the references in the literature reported cases occurring as a result of industrial contamination of herbage, drinking water with a high fluorine content, or experimentally fed sources of fluorine (usually sod
Understandably, it is not uncommon to find reference to arthritic changes, if for no other reason than the difficulty of distinguishing them from certain fluoride effects on bone.
... Data are available from a single epidemiological study of gynecologic problems in female workers in a superphosphate manufacturing plant (Kuznetsova, 1969)[ref.99]. The exposed group comprised 302 women mostly 20-40 years old and the control group 309 office employees and housewives not exposed to F. Dust concen
