letters to the editor

letters to the editor Cumulative Effects of Risk Associated A Response to "Cumulative Effects of with Environmental Hazards, Including Risks Associated with Environmental Air Pollution Hazards, Including Air Pollution" When discussing risk associated with environmental haz- Pielke and Derickson are to be commended for their at- ards, it is conventional to define risk as the probability of tempt to put a lower bound on the net risk. The problem occurrence of an event. With cancer hazards, for example, of determining this risk is an important one, yet difficult a typical approach is to define the cancer risk of a particular methodologically to contend with. The Environmental Pro- environmental exposure as a probability of contracting tection Agency (EPA) has taken the position that the net risk cancer during an average lifetime of a specific class of from n distinct substances with separate risks P . . . ,P is u n individual. A probability of 10~5 would mean that it is sta- to be estimated additively by the sum P + .. . +P of the } n tistically expected that one person in the targeted group separate risks (Federal Register 1986, p. 33999), unless there would contract cancer during their lifetime due to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

letters to the editor

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
D.O.I.
10.1175/1520-0477-70.7.788
Publisher site
See Article on Publisher Site

Abstract

Cumulative Effects of Risk Associated A Response to "Cumulative Effects of with Environmental Hazards, Including Risks Associated with Environmental Air Pollution Hazards, Including Air Pollution" When discussing risk associated with environmental haz- Pielke and Derickson are to be commended for their at- ards, it is conventional to define risk as the probability of tempt to put a lower bound on the net risk. The problem occurrence of an event. With cancer hazards, for example, of determining this risk is an important one, yet difficult a typical approach is to define the cancer risk of a particular methodologically to contend with. The Environmental Pro- environmental exposure as a probability of contracting tection Agency (EPA) has taken the position that the net risk cancer during an average lifetime of a specific class of from n distinct substances with separate risks P . . . ,P is u n individual. A probability of 10~5 would mean that it is sta- to be estimated additively by the sum P + .. . +P of the } n tistically expected that one person in the targeted group separate risks (Federal Register 1986, p. 33999), unless there would contract cancer during their lifetime due to

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Jul 1, 1989

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