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.
Freon is part gas and part liquid, depending on where the chemical is in the process and in the system. When freon leaks as a liquid, this often occurs outside. This is a more uncommon place for a leak to show up and will often cost more when it does. Freon leaks are unsafe for the environment because of the capability to deplete the ozone layer. More important than that though is the possibility for freon to enter the airflow inside the interior of the home.