This unique case is over 80 times higher than the world average natural human exposure to radiation.

The following programs are designed to reduce human exposure to contaminants in water.

They found that radiation levels in the house were 700 times higher than the maximum considered safe for human exposure.

Critics of the study note that the levels at which cancer occurred were 45 to 79 times higher than normal human exposure.

This value is based on experience with human exposures.

Other scientists would then examine possible human exposure to that hazard to determine risk.

Human exposure occurs through food consumption or ground and surface water contamination.

There is also general evidence of widespread human exposure.

This is certainly one way to try to avoid dealing with the consequences of the human exposures that occurred.

Under current conditions at this site, potential or actual human exposures are under control.