Lec 9, Previous was Lec 8

6 Pages
86 Views
Unlock Document

Department
Environmental Science
Course
EESA10H3
Professor
Jovan Stefanovic
Semester
Winter

Description
Toxicology: assessing chemical hazards (2) Chemical interations o Antagonist- reducing toxicity- affect of getting disease is lower o Synergeistic- albestine- directly related to lung cancer Multiple chemicals make it more difficult to measure toxicity o Ex) food additives, pesticides, and air pollution When looking at the toxicity we look at three things o 1. RECEPTOR- living organism receiving dose Imp to know how many times they are exposed ( frequency of measure) Age- children and adults are more vulnerable Genetic makeup- genes that make you non resistant General health- esp for elders o 2. DOSE- amount person receives through different roots Ingestion most common 85% Inhalation-10% Absorption- 5% o Bioavailability Acute dose: nuclear power plant accidents for example Chronic dose- repeated dose- radiation Long term- first day of life to entire life Low dose and is constant o 3. Reponse adverse human health effects can be specific or non specific Specific- we can distinguish which particular organ is affected Non specific the whole body is affected www.notesolution.com
More Less

Related notes for EESA10H3

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit