One does not have to look far today to encounter concerns around our increasing exposure to ?chemicals?. However, every substance is in fact a chemical or a mixture of chemicals, including all our food, drink and our own bodies. What people usually mean is that they want to avoid any ?synthetic? chemicals (those that don?t …
Continue reading "Environmental Toxicology - the Dose Makes the Poison!"
For many years, the environmental effects of agrochemicals and industrial chemicals were subjects of public concern, increasing regulation and toxicological risk assessment, while the environmental effects of pharmaceuticals were largely neglected. It was only in the 1990s that regulators turned their attention towards pharmaceuticals, which resulted in the European Medicines Agency producing its ?Guideline?on …
1,1-Dimethylhydrazine (also known as unsymmetrical dimethyl hydrazine, UDMH) is a commonly used rocket fuel. In some locations, such as the surroundings of the Baikonur Cosmodrome in Kazakhstan, extensive pollution by 1,1-dimethylhydrazine has occurred, mainly from the early stages of rockets falling back to earth. The Baikonur Cosmodrome was constructed in the Soviet era, and has …
Continue reading "Atmospheric deposition of unburnt rocket fuel and its transformation products"
