Construction worker dowel drilling on a runway in August, with heat up to 104 degrees that day.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/25069384@N03">National Institute for Occupational Safety and Health (NIOSH)</a> from USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/niosh/26632896971/">Outdoor Construction</a>