Nov 04, 2012 2:39 PM GMT
Wind farm noise causes “clear and significant” damage to people’s sleep and mental health, according to the first full peer-reviewed scientific study of the problem. [...]
The researchers used two standard scientific scales, the Pittsburgh Sleep Quality Index, which measures the quality of night-time sleep, and the Epworth Sleepiness Scale, which measures how sleepy people feel when they are awake.
“Participants living near industrial wind turbines had worse sleep, as evidenced by significantly greater mean PSQI and ESS scores,” the researchers, Michael Nissenbaum, Jeffery Aramini and Chris Hanning, found.
“There were clear and significant dose-response relationships, with the effect diminishing with increasing log-distance from turbines.”
The researchers also tracked respondents’ “mental component scores” and found a “significant” link – probably caused by poor-quality sleep – between wind turbines and poorer mental health.
More than a quarter of participants in the group living near the turbines said they had been medically diagnosed with depression or anxiety since the wind farm started. None of the participants in the group further away reported such problems.