1 The largest school district by enrollment with an election in 2016 is Wake County Public School System with 153,534 K-12 students.  The smallest North Carolina school district among the nation's largest with an election in 2016 is Duplin County Schools with 9,628 K-12 students.
Freon only remains a liquid while under pressure inside your refrigerator's cooling system. The chemical changes to a gas as soon as it contacts the air. This means, when you smell freon in and around your refrigerator, you're also inhaling varying amounts of freon gas. According to the Environmental Protection Agency, freon gas is denser than air and travels very slowly to the upper atmosphere.
The freon itself is odorless, although the oil in the system does have an odor.ou smell this because ozone is created when lightning interacts with â¦ oxygen.    After a short period of time, your nose will become acclimated to the presence of ozone, and you will not notice it, unless the concentration increases.