Slide 19 of 49
Intake is mg of chemical per kg of body weight per day.
Averaging time is different for non-carcinogens and carcinogens. The carcinogenic intake is a prorated cumulative dose over a lifetime and the non-carcinogenic intake is averaged only over the exposure duration. The difference is based on the understanding of the different mechanisms for cancer and non-cancer effects. For cancer the idea is all of the exposures add up - manifests its self any time in your lifetime. For non-cancer effects the idea is the effect happens during the exposure