Radiation Exposure Effects
| Exposure (rem) |
Exposure (mSv) |
Health Effects |
| 0.001 |
0.01 |
Dental x-ray |
| 0.01 |
0.1 |
Chest x-ray |
| 0.04 |
0.4 |
Mammogram |
| <1 |
<10 |
Whole body doses to most Fukushima & surrounding area residents |
| 1 |
10 |
Full-body CT scan |
| 1.2 |
12 |
Average effective dose for Japanese workers over 19 months |
| 5 to 10 |
50 to 100 |
Changes in blood chemistry |
| 10 |
100 |
Recommended limit for radiation workers every 5 years |
| 35 |
350 |
Exposure of Chernobyl resident who were relocated |
| 40 |
400 |
Maximum radiation levels/hour recorded at Fukushima March 14, 2011 |
| 50 |
500 |
Nausea; increased risk of cancers |
| 55 |
550 |
Fatigue |
| 70 |
700 |
Vomiting within hours of exposure |
| 75 |
750 |
Hair loss after 2 weeks |
| 90 |
900 |
Diarrhea |
| 100 |
1,000 |
Can cause radiation sickness & nausea but not death |
| 200 to 300 |
2,000 to 3,000 |
Highest Japanese workers exposure doses |
| 500 |
5,000 |
Single dose that could kill half of those exposed |
| 600 |
6,000 |
Typical dose recorded in Chernobyl workers who died within a month |
| 1,000 |
10,000 |
Internal bleeding & death within 2 weeks |
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