The ‘Archaeological Park: Bosnian Pyramid of the Sun’ Foundation continuously follows the basic parameters in the prehistoric Underground Labyrinth of Ravne. It is very important that the temperature, humidity, pressure, air flow and concentration of oxygen and negative ions do not change substantially in comparison with the conditions in 2005/2006.
Measured values of oxygen and negative ions at the end of May 2018:
May 28, 2018
Oxygen: outside 20.7; Egg-shaped block 19.7; at K2 – 19.7
Negative ions: Outside: 10.000 (during thunderstorms), Egg-shaped block: 40,000, in the Healing chamber: 50,000, after meditation: 250,000
May 29, 2018:
Oxygen: outside 20.7; Egg-shaped block: 20.7; Healing chamber: 20.7
Negative ions: Outside 2,000, Egg-shaped block: 30,000, in the Healing chamber: 50,000, after meditation 175,000
Recommended O2 values are from 19.5 to 22.0. They should not fall below 19.5 and this never happens in tunnels.
It is interesting that as more tunnels are opened and cleared, the negative ion concentration values per cubic centimeter increase. When measuring in 2010, the highest values reached 18,500 per cubic centimeter. However, in 2017 and 2018, the values are several times higher, reaching several tens of thousands, and sometimes several hundred thousand ccm, which is more than Niagara Falls, where officially the highest concentration in the world has been measured.
Given the benefits that negative ions carry with them, it is a fact that is especially rejoicing.