Epidemiological Evidence and Study Types

To protect human health with an 'adequate margin of safety.'

Secondary standards are intended to prevent environmental and property damage.

It describes the change in effect on an organism caused by different levels of exposure to a stressor.

<p>LD50 is the amount of a material that causes the death of 50% of a group of test animals when given all at once.</p> Signup and view all the answers

<p>LC50 is the concentration of a chemical in air that kills 50% of the test animals in a given time.</p> Signup and view all the answers

<p>It helps in determining 'safe' and 'hazardous' levels and dosages for substances humans are exposed to.</p> Signup and view all the answers

<p>It is the dosage below which no adverse effect occurs.</p> Signup and view all the answers

<p>It is the formula used to calculate the dose of a substance based on concentration and exposure time.</p> Signup and view all the answers

<p>LD50 measures the short-term poisoning potential of a material.</p> Signup and view all the answers

<p>It helps in understanding the impact of different levels of exposure on individuals and populations.</p> Signup and view all the answers