APES Human Hazards530
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APES Human Hazards530
Pollution and toxicity
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Toxins and Toxification

Toxins and Toxification | APES Human Hazards530 | Scoop.it

Toxins are effective and specific poisons produced by living organisms.

Toxification is the conversion of chemical compounds into more toxic forms. 

http://www.youtube.com/watch?v=5zAf0vAq8-E

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Risk management and assessment

Risk management and assessment | APES Human Hazards530 | Scoop.it

These steps illustrate how to identify and prevent toxins from affecting your body and other humans alike. The steps may vary depending on what exactly is being focused on, however, there are key points that are expressed throughout. This website gives an example for air pollution managment and the necessary steps available for protecting yourself. http://www.epa.gov/ttn/atw/3_90_024.html

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Human Hazards- Virus, Pathogens, Vectors, Diseases.

Human Hazards- Virus, Pathogens, Vectors, Diseases. | APES Human Hazards530 | Scoop.it

Any disease-producing agent, especially a virus, bacterium, or other microorganism. Each example has its own unique characteristics that have varying effects on human health. 

http://www.medicalairsolutions.com/techref/pathogen_list.htm

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What makes a compound Toxic?

Compounds usually become toxic due to certain factors. Some of these factors include Size or concentration, Severity, and the organism's ability to de-toxify. Usually a larger than effective dose (ED50) will become lethal. (LD50). Also, the severity of the toxin may have greater or weaker effects than anticipated. 

http://www.epa.gov/kidshometour/toxic.htm

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Dose Response Analysis

Dose Response Analysis | APES Human Hazards530 | Scoop.it

Describes the change in effect on an organism caused by differing levels of exposure (or doses) to a stressor (usually a chemical) after a certain exposure time. 

LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals

The dose of a drug that is pharmacologically effective for 50% of the population exposed to the drug or a 50% response in a biological system that is exposed to the drug. The website listed gives and example of how a response analysis is executed.http://pmep.cce.cornell.edu/profiles/extoxnet/TIB/dose-response.html

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