What is the equivalent of 30 psi in atmospheric pressure?

[MelanieLee]

30 psi is equivalent to 2 standard atmospheric pressures. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; Causes steering wheel vibration and deviation, reducing driving comfort; Accelerates wear on the central tread pattern, shortening tire lifespan; Increases vehicle vibration, indirectly affecting the lifespan of other components; Overextends tire cords, reducing elasticity and increasing the load on the vehicle during driving; Decreases puncture resistance. Sharp objects like nails or glass can easily penetrate the tire, leading to internal cracks or blowouts. Methods for insufficient tire pressure: If no damage is visible, inflate to normal pressure and reset the tire pressure system; If a puncture is found, promptly drive to a tire shop for repair and reinflation; If the tire pressure warning reappears after inflation without any punctures, it may be due to a leaking wheel rim deformation. Check and replace the rim if necessary.