The two main conclusions of the report are that:
- The weight of evidence from epidemiological studies and supporting information is sufficient to conclude that ethylene oxide is carcinogenic to humans.
- Total cancer risk based on human data―lymphoid cancer incidence and breast cancer incidence in females is 1.80 × 10-3.
In other words, a woman exposed to 1 ppm EtO for her lifetime has a 0.18% chance of contracting either breast or lymphoid cancer due to this exposure, i.e. on top of the risk of developing these or other cancers due to others reasons.
This report is 174 pages long and so the brief summary here does not do it justice and therefore anyone interested is advised to download and read the report and perhaps offer comments to the EPA..