Discuss the difference between nonthreshold chemicals and th

Discuss the difference between non-threshold chemicals and threshold chemicals and their comparative dose-response curves.

Solution

Threshold chemicals are agents that which cause insignificant harmful effects at a certain level whereas non-threshold chemicals are going to cause significantly much lethal and harmful effects with higher doses & the resultant effects are observable.

The dose response curve is mainly depicts the amount of toxic product that cause injury to the cells. Therefore, the threshold dose is going to be attained prior to any lethal effect occurs whereas nonthreshold dose-response model is depicts that as the dose increases the toxic effects increases from initial dose itself