Methanol economy advantages compared to a hydrogen economy: 1  Efficient energy storage by volume, as compared with compressed hydrogen. 2  A liquid hydrogen infrastructure would be prohibitively expensive. 3  Can be blended with gasoline (for example in M85, a mixture containing 85% methanol and 15% gasoline). 4  User friendly.
Two things contribute to air pollution that can cause an air quality alert: 1  Ground-Level Ozone â High-levels of ground-level ozone are frequently the cause of air quality alerts. 2  Particulate Matter â Particulate matter consists of pollutants such as dust, soot, ash and wood smoke.
Freon Leak. Another reason for air conditioner freeze up is the lack of coolant. However, if your air conditioner is low on freon that is not a normal condition that occurs over time. If the air conditioning unit has leaked coolant and the levels are low, the air conditioning system works harder than normal and can form ice on the coils and pipes.