The 2015 Inventory of Air Emissions released today shows the Port of Los Angeles has largely continued to preserve clean air gains. The 2015 Inventory of Air Emissions released today shows the Port of Los Angeles has largely continued to preserve clean air gains.
PSI Definition: PSI is a unit of pressure expressed in pounds of force per square inch of area. It stands for Pounds per Square Inch. 1 PSI = 6894 Pascals = 0.070 atmospheres = 51.715 torr. Up Next. Up Next.
PSIG stands for pounds per square inch gauge, or gage. PSIG units are relative to atmospheric pressure. The air surrounding Earth exerts pressure on all objects on the surface of the planet. At sea level, this pressure is 14.7 pounds for every square inch column of air.