ENVIRON 201 Lecture Notes - Lecture 16: Biodegradation, Neurotoxicity, Reproductive Toxicity
Document Summary
Environ 201 lecture 16 environmental health and toxicology. Chemicals: how many chemicals do you think are currently used in commerce in the u. s. , 80,000, according to the toxic substances control act chemical. Substances control inventory approximately 85,000 chemicals are manufactured or processed in the united states: how many chemicals in commerce have been adequately characterized, of the 3,000 high-production volume chemicals currently in use in the. In order for a hazard to cause harm, there must be exposure: no exposure, no threat, exposure can occur through various routes. Ingestion: swallowing a hazard or consuming contaminated foods/liquids. By which route: dose, how much of an agent actually gets into the body and causes a health response, primary determinant regarding likelihood of response to exposure, small dose less likely to cause a response. If an individual is exposed to a sufficient dose of a chemical, a response will occur: sickness, weakened body function.
