The Seoul city government said Saturday it will conduct radioactivity tests on all asphalt roads paved in 2000 after higher-than-standard levels of radioactivity were detected on a pavement in a northern part of the city.
Up to 10 times the average radioactivity levels were detected on a road in Wolgye-dong in northern Seoul, though the state-run Korea Institute of Nuclear Safety said the levels, which were measured at up to 1,400 nanosivert per hour, were not hazardous to human health.