BALNEO-RESEARCH JOURNAL - Asociatia Romana de Balneologie

Regimul aeroionizării naturale, evaluat pe baza metodei clasice cu ajutorul unui contor de tip
Ebert, indică deosebiri între cele două saline. Astfel, concentraţiile de ioni de ambele polarităţi (numărul
total mediu de ioni din unitatea de volum) corespunzătoare perioadelor de măsurare a fost de circa 710
ioni /cm 3 (370 ioni pozitivi/cm 3 , respectiv 340 ioni negativi/cm 3 ). De semnalat faptul că, deosebirile
cantitative dintre cele doua polaritati nu sunt mari, coeficientul de unipolaritate fiind foarte aproape de
unitate.
Distribuţia cantitativa totală şi pentru cele două polarităţi (ionizare pozitivă şi negativă) este
apreciată ca apropiată de valorile întâlnite în atmosfera liberă (din zone fără poluare) la salina Ocna Dej,
aspect pozitiv prin efectele favorabile exercitate asupra organismului uman.
MICROCLIMATE AND AIR IONIZATION MEASUREMENTS IN THE OCNA DEJ
SALT MINE
Ambient air is characterized by several physical parameters, such as the meteorological, but also
by some electrical properties (air ionization). All these parameters influence on human organism and,
therefore, they can be harnessed for therapeutic purposes, both in normal environmental conditions, and
in special locations such as salt mines.
The microclimate and natural ionization of air determinations, performed at the Ocna Dej salt
mine decades ago, supplemented by new observations were made in summer 2009 in order to capitalize
speleoterapeutice purposes of internal spaces.
From the microclimatic point of view, in summer time, the underground areas have a moderate
regime in terms of key meteorological parameters of the system. This thermic regime is relatively cool
(with air temperatures ranging from 12,4 to 13,8 0 C), with a relative humidity of the air in a relatively
close (56 - 65%) and almost non-existent air currents. Exceptions are the moments in which operate the
aeration system and the observation points located in narrow portions of the mine, such as crossing lanes.
Throughout the whole period of measurement was found stable microclimatic characteristics, due
to very small changes in both the day to day and between measurement points. You could say that, in
general, measurements have revealed a constant microclimate, cooler, which helps the stimulation of the
body.
The bioclimate expressed by the body’s thermal comfort index was bellow the comfort zone,
specifically in the area of discomfort by cooling at all points of observation (5 – 14 0 TEE). In the sport
hall temperatures were low, the lack of air flow and low relative humidity cooling caused a moderate
discomfort. The stress skin was hypotonic (specifically winter months) in all observation points, but only
under “gym” in the sanatorium was slightly hypotonic for relaxing.
Stress lung, calculated from water vapor tension, shows a character dehydrated (specific winter
months) at all points and slightly dehydrated in the gym and at the entrance of the Sanatorium Hall
(corridors intersection).
The natural air ionization regime, assessed using conventional classical method based on an
Ebert-type meter, indicates the differences between the two salt mines. Thus, both polar ion
concentrations (average total number of ions per unit volume) corresponding to periods of measurement
was about 710 total ions/cm 3 (370 pozitive ions/cm 3 , respectively 340 negative ions/cm 3 ). It pointed out
that the quantitative differences between the two polarities are not large, the coefficient of unipolarity is
very close to unity.
The total quantity and distribution for the two polarities (positive and negative ionization) is
appreciated as close to the values found in the free atmosphere (in areas without pollution) at the Ocna
Dej salt mine, an positive aspect due to the favorable effects exerted on human body.
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