Natural radiation sources, including some lessons for nuclear waste management
Level 5 - mechanism / opinion, no new human data
Narrative review summarizing aggregate UNSCEAR estimates without original empirical data or systematic review methodology.
OpenAlex W2051984208 · doi:10.1016/s1631-0705(02)01360-9
What was done
Narrative review summarizing global UNSCEAR estimates of human exposure to natural radiation sources and assessing the epidemiological evidence regarding health outcomes in highly exposed populations.
What was found
The estimated global average effective dose from naturally occurring sources is 2.4 mSv per year, composed of: - Radon: 1.3 mSv - Terrestrial radiation: 0.46 mSv - Cosmic radiation: 0.39 mSv - Internal radiation (excluding radon): 0.23 mSv These values vary significantly by location. The abstract reports that no sound epidemiological study has demonstrated health effects in the most exposed populations, except for a few radon studies where the predominant role of tobacco is difficult to determine.
Why it matters
Provides baseline figures on natural background radiation exposure and its distribution to inform radiation protection standards and nuclear waste management discussions.
Limits
This is a narrative review relying on aggregate secondary estimates (UNSCEAR) without primary empirical data or systematic review methodology. Sample size is not reported in the abstract, and confounding by tobacco smoke limits the interpretation of available radon studies.
Cited by
- context Living at a 1-mile altitude like Denver doubles background radiation exposure compared to sea level.