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.
A system that is only 10% low in coolant will not operate efficiently and can cost over 20% more on your monthly utility bills. Continued operation of your HVAC units with low coolant can damage your compressor. Freon is 4 times heavier than air and sinks to the ground/floor initially when a leak occurs. Freon will rapidly disperse due to its high volatility. Federal law prohibits adding Freon to a leaking system.