Environmental impact of pharmaceuticals and personal care products the environment. Nail polish remover has the ability to enter bodies of water and soil after entering landfills or by precipitation, such as rain or snow. However, due to acetone's high volatility, most of it that enters the bodies of water and soil will evaporate again and re-enter the atmosphere. Not all of the acetone molecules will evaporate again, and so, when acetone remains in the bodies of water or soil, a reaction will occur. Nail polish remover evaporates easily because acetone's intermolecular forces are weak. An acetone molecule can't attract other acetone molecules easily because its hydrogens are not
Science of smells Science of smells The odorology or science of smells is a technology used mainly in criminology for judicial identification. The technology is based on the analysis of smells by dogs notably to merge the criminals or to identify the smell of objects (explosives, drugs). Olfaction of dogs is used for a long time by the police (location of drug, of explosives, of weapon, body of missing persons, criminals' identification) or the services of rescue (bodies buried under avalanches). From 1910, a dog handler Friedo Schmidt describes in his book Verbrecherspur und Polizeihund («The criminal links and the police dog») how