Using those flies to drum up sympathy is going to backfire. On a trip to SLC we hiked up Antelope Island. In the morning it was chilly and there were no flies

Using those flies to drum up sympathy is going to backfire. On a trip to SLC we hiked up Antelope Island. In the morning it was chilly and there were no flies on the way up but oh my we were getting attacked on the way down. Half of the hike was amazing! I don't live in the area but isn't the toxic dust of all the heavy metals going to be a problem? Is there some way to deal with that other than covering them all up with water so they don't get blown into the city?