### Question
What does cancer cluster mean?


### Answer
**Cancer cluster** has the following meaning in *42 U.S.C. § 280g*:

> the incidence of a particular cancer within a population group, a geographical area, and a period of time that is greater than expected for such group, area, and period

#### Citation:
  - *42 U.S.C. § 280g*
  - Heading: **CHAPTER 6A-PUBLIC HEALTH SERVICE > SUBCHAPTER II-GENERAL POWERS AND DUTIES > Part P-Additional Programs**

