If they pay me the money, I'll have a report on their desk for them in an hour...
Essentially - airplane noise definitely raises stress levels, reduces hearing efficacy, and only marginally affects structures... marginally, and not permanently.
Now where's my check?
$300,000, crisakes, you can't even let an RFP for that in this country. Drive out, listen, Yup its noisy, go home.
:0)