There's no evidence that the noise from wind turbines leads to adverse health effects, Ontario's chief medical officer of health says.
Dr. Arlene King said some people living near wind turbines may report symptoms such as headaches, dizziness and sleep disturbances.
But she concluded in a report released Thursday that the noise of wind turbines at common setback distances from residential areas isn't sufficient to cause hearing impairment or other health problems.
The governing Liberals have been pushing wind turbines and other sources of renewable energy as part of a larger plan to reduce greenhouse gas emissions and boost the economy.
Residents from across the province have lobbied the government to impose a moratorium on new wind projects until the possible impacts on human health were studied.
Hundreds of protesters rallied in April at Queen's Park saying the province was overriding the concerns of local councils across Ontario about wind projects.