I want to change my Particle system scale value at runtime through code.

I just want to change the particle system z scale value only.
My game area runtime gets expanded so I require to change the scale value based on this increase.
Anyhow I require to control in the code so please guide me into this.
Okay, I found the solution by doing some research on my side and I want to post this as a reply so it become useful to other members.
ParticleSystem.ShapeModule particleSystemShape = spaceSparkleSystem.shape;
particleSystemShape.scale = new Vector3(15f, 0f, GameConstants.TWO_PLANETS_DISTANCE + GameController.Instance.SpaceShipSpeedIncrease);