Experts have examined nearly 500 studies carried out since 2009, which looked at pylons and other electronic devices like mobile phones and hospital equipment.
It comes as debate continues around Eirgrid's proposed new pylon network around the country.
The Tánaiste says the Energy Minister intends to press ahead with his own review into the use of pylons - despite the fact that the European Commission has already conducted a study on the issue:The government last week set up a review group to look at all the options on whether new cables should be installed under or overground.
Childhood cancer expert, Prof. Anthony Staines says putting power lines underground reduces the risk of childhood leukemia from electromagnetic fields to almost zero, although it's possible one child could develop fatal leukemia every 10 or 20 years from living close to a pylon.
Professor Anthony Staines is a lecturer at DCU who has researched child cancers. He says the risk from pylons isn't clear, but it shouldn't be ignored:
