[ENSC 201] - Midterm Exam Guide - Ultimate 20 pages long Study Guide!

• School: Queen's University
• Department: Environmental Studies
• Course: ENSC 201
• Professor: Louise M Winn

Document Summary

What is a toxic substance: to(cid:454)i(cid:272)a(cid:374)t: (cid:272)a(cid:374) i(cid:374)(cid:272)lude hu(cid:373)a(cid:374) (cid:373)ade a(cid:374)d (cid:373)ade (cid:271)(cid:455) othe(cid:396) spe(cid:272)ies (cid:894)like (cid:271)a(cid:272)te(cid:396)ia(cid:895, toxin: is a toxicant that is produced by a living organisms other than human. Exposure: ho(cid:449) lo(cid:374)g, (cid:449)hat"s the du(cid:396)atio(cid:374), the (cid:396)oute of e(cid:454)posu(cid:396)e (cid:894)the (cid:449)a(cid:455) it e(cid:374)te(cid:396)s the (cid:271)od(cid:455) and the means by which it entered your body) Dose (*important: what is meant by dose: how much. Therapeutic drugs: everything has a dose at which toxicity might occur, we must keep toxicity in mind, the dose makes the toxicity. Species (there is a wide range in the differences among species: sensitive or non-sensitive species. Receptor (who is at risk for toxicity) -> exposure (if no exposure there is no risk) -> hazard (depends on conc. Compartment (soil, wateretc), envi mobility(from one compartment to another) Hazard: the ability of a chemical to produce toxicity (harm adverse response)