[CyberCowboy777]

Ok, first off the assumption is made that the amount of helium leaving the atmosphere is CONSTANT, which is absurb. As anyone with physics/chemical training can tell you, the rate of buildup/loss of a substance is proportional to the amount of substance existing within the medium. In short, more helium=greater loss rate.

The rate of loss of helium from the atmosphere into space is calculable and small.

Now, the only real source of helium in the world comes from underground deposits where a geologic feature (saltdome/petrol?)managed to trap the helium, preventing its escape into the atmophere and on out of the gravity well.

If such decay took place for billions of years, as alleged by evolutionists, much helium should have found its way into the earth's atmosphere.

You seem to not want to read the actual study as well, I am only giving bullets. If you want to see how the numbers work out read the damn study. Gentry, R. V. et al, "Differential Helium Retention in Zircons: implications for nuclear waste management," Geophys. Res. Lett. 9 (Oct. 1982) 1129-1130.

[Saturnalia]

The rate of loss of helium from the atmosphere into space is calculable and small.
But is not constant. The flux between an area of higher concentration to an area of lower concentration is dependent on the existing concentrations in both areas.
As helium in produced from radioactive decay (U-238 decay chain, etc.)