Does the atmospheric pressure remain the same in all directions?

The weight of the atmosphere as it pushes down upon Earth's surface exerts a force per unit of area called air pressure. Air pressure is exerted in all directions because air molecules move in all directions.In general, air pressure decreases by about 50 percent for each 5-kilometer increase in elevation. The air pressure is the highest when it is closest to the ground , when we go higher the air pressure ecreases due to the less amount of air molecules.