### Question
What does high exposure level mean?


### Answer
**High exposure level** has the following meaning in *42 U.S.C. § 300hh*:

> a level of exposure to a substance of concern that is for such a duration, or of such a magnitude, that adverse effects on human health can be reasonably expected to occur, as determined by the President, acting through the Secretary of Health and Human Services, in accordance with human monitoring or environmental or other appropriate indicators

#### Citation:
  - *42 U.S.C. § 300hh*
  - Heading: **CHAPTER 6A-PUBLIC HEALTH SERVICE > SUBCHAPTER XXVI-NATIONAL ALL-HAZARDS PREPAREDNESS FOR PUBLIC HEALTH EMERGENCIES > Part B-All-Hazards Emergency Preparedness and Response**

