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Health Risks of Ionizing Radiation: - Clark University

Health Risks of Ionizing Radiation: - Clark University

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more that we can say about this apparent risk. We<br />

have very little information on doses received by<br />

these children before or after birth so any kind <strong>of</strong><br />

dose-response analysis is impossible. Pobel and Viel<br />

(1997) make a convincing case for exposure through<br />

use <strong>of</strong> beaches or consumption <strong>of</strong> local seafood near<br />

la Hague. Other risk factors such as preconception<br />

radiation exposure or population mixing and viral<br />

infection might be involved as well.<br />

Birth outcomes have not been studied as<br />

extensively as cancer but evidence from Hanford in<br />

Washington, Shiprock mining areas in New Mexico<br />

and the Rajasthan facility in India all points to a<br />

birth defect risk. All three <strong>of</strong> these locations may be<br />

Communities Near Nuclear Facilities 155<br />

associated with relatively high exposures. Mangano<br />

et al. (2002) present evidence <strong>of</strong> an association<br />

between US nuclear facilities and infant mortality.<br />

Studies <strong>of</strong> stillbirth around Sellafield have not<br />

shown an elevated risk. These are intriguing results<br />

that give us small clues about an issue that could be<br />

studied more thoroughly.<br />

In summary we can say that living near a nuclear<br />

facility is probably a risk factor for childhood<br />

leukemia and that the magnitude <strong>of</strong> the risk varies by<br />

site. The risk to adults is small, if it exists, although<br />

it may be higher near some facilities with histories<br />

<strong>of</strong> relatively high radioactive releases.

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