From the first scimming, I would not give much credit to that study. Only 29 participants. But most importantly it was not double blind. The participants where instructed on what exactly the study wanted to find out and could easily see, how far they where from the wind turbine at the testing sides. Thats a programmed placebo effect.
Also: They only measured at 2 sites. The outdoor site was only 20m from the wind turbine. That is a distance not even relevant to placement of wind turbines. The safety distance to the spinning blades will already be significantly higher, at least 100m. So the measurement at that side might be interesting, but irrelevant.
From the first scimming, I would not give much credit to that study. Only 29 participants. But most importantly it was not double blind. The participants where instructed on what exactly the study wanted to find out and could easily see, how far they where from the wind turbine at the testing sides. Thats a programmed placebo effect.
Also: They only measured at 2 sites. The outdoor site was only 20m from the wind turbine. That is a distance not even relevant to placement of wind turbines. The safety distance to the spinning blades will already be significantly higher, at least 100m. So the measurement at that side might be interesting, but irrelevant.