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Green Sighted: Toxic vs Toxin?

Green Sighted: Toxic vs Toxin? | APES Human Hazard | Scoop.it

This blogger took it upon herself to help clarify TOXIN and TOXICITY, two words that can be easily confused. It's pretty insightful and easy to understand.

 

Toxicity is the degree to which a substance can damage a living or non-living organism.

A Toxin is a poisonous substance produced within living cells or organisms.

 

Here's another link if you want more information

http://www.ehs.utoronto.ca/resources/whmis/whmis6.htm

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iii. Dose Response Analysis

iii. Dose Response Analysis | APES Human Hazard | Scoop.it

These two websites do a pretty good job of explaining and introducing the concepts of Dose Response Analysis, the picture here and the picture on wikipedia help to clarify the purpose of the graphs.

 

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2686515/ (helps to explain various other terms like LD50 + ED50, etc)

 

http://en.wikipedia.org/wiki/Dose-response_relationship

 

 

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v. Risk Assessment & Risk Management

v. Risk Assessment & Risk Management | APES Human Hazard | Scoop.it

Risk assessment

identification and quantification of risk resulting from a specific use or occurrence of a chemical or physical agent.

 

Risk Management

decision-making process to select the optimal steps for reducing a risk to an acceptable level

 

This video gets into Risk Management a bit for those curious

http://www.youtube.com/watch?v=7YVCud9BARA

 

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ii. How/why compounds are harmful to humans, etc

ii. How/why compounds are harmful to humans, etc | APES Human Hazard | Scoop.it

These two governement websites have an extensive amount of resources to help understand and identify how and or why a substance (dose, exposure, synergistic effects etc) can be harmful to a human:

http://www.health.ny.gov/environmental/chemicals/toxic_substances.htm

http://www.osha.gov/SLTC/hazardoustoxicsubstances/index.html

 

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iv. Infection vs Disease, Pathogens and Vectors

iv. Infection vs Disease, Pathogens and Vectors | APES Human Hazard | Scoop.it

General information about a pathogen:

http://healdiseases.wordpress.com/2010/11/04/what-is-a-pathogen/

 

 

A good video that goes a bit in depth about what a pathogen is:

http://www.youtube.com/watch?v=G_tZXgwPdrM&
 

A very simple definition of a Vector in terms of human health:

http://en.wikipedia.org/wiki/Vector_(epidemiology)

 

 A good question on Yahoo! answers asking about the difference between an infection and disease:

http://answers.yahoo.com/question/index?qid=20101029072823AAPkXtq

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