The Expo statement was the first to detail work-related deaths and serious injuries, classified as needing three days or more off work, among 200.000 workers over 247 million work hours. It did specify how or where the three workers had died.
It said the accident frequency rate, a calculation used to measure incidents over a set amount of time worked, was 0.03, compared to 0.07 in the construction industry in Britain as recorded by the UK Health and Safety Executive.
Mega projects in the Gulf region such as the Expo, and neighbouring Qatar's hosting of the 2022 soccer World Cup, have faced international scrutiny with rights groups criticising conditions for low-paid migrant workers.
