In a human study looking at the applicabilty of synthetic pr

In a human study looking at the applicabilty of synthetic progesterone to fix the defiiencies and mlfunctioning due to certain toxic exposures. The OEL was determined a 2.08 micrograms/m^3 based on a body weight of 99 kg; if a safety factor of 10 is assumed with a breathing rate of 10 m in 8 hours, what concentration represents the no observable effect level in the study subject?

Solution

The no observed effect level is present at 0.01 concentration and it denotes how much exposure of an organism, found by experiment or observation, of which there isn\'t biologically or statistically significant improvement in the frequency or harshness of any adverse effects inside the exposed population depth when compared to its appropriate control. It can be specifically the greatest tested dose or power of a substance of which no such adverse effect is evident in exposed test organisms where higher doses or concentrations took an adverse effect.