TORONTO - Premier Dalton McGuinty is shrugging off concerns raised by an Ontario's teachers' union about Wi-Fi in public schools.

The Ontario English Catholic Teacher's Association says computers in all new schools should be hardwired instead of setting up wireless networks.

It also says Wi-Fi should not be installed in any more classrooms, citing health risks.

But McGuinty says he's following the advice of Health Canada and the province's chief medical officer of health.

He says he's been reassured by Canadian experts that Wi-Fi doesn't pose a danger to students.

While Health Canada has cautioned parents to limit the use of cellphones by children, it said that based on scientific evidence, low-level exposure to Wi-Fi is not dangerous.