http://www.revistadechimie.ro REV. CHIM. (Bucharest) ♦ 66 ♦ No. 1 ♦ 2015 60 Influence of NaCl Aerosols on the Functional Characteristics of Children ION SANDU 1,2* , MARIA CANACHE 1 , TRAIAN MIHAESCU 3 , MARIN CHIRAZI 1 , ANDREI VICTOR SANDU 4 ,5 , LAURA MIHAELA TRANDAFIR 3 , ALINA COSTINA LUCA 3 , LAURA ELISABETA CHECHERITA 3 1 „Alexandru Ioan Cuza” University of Iaºi, 1 Carol I Blv., 700506, Iaºi, Romania 2 Romanian Inventors Forum, 3 Sf. P. Movila Str., 700089, Iasi, Romania 3 „Grigore T. Popa” Medicine and Farmacy University of Iasi, 16 Universitatii Str., 700115, Iasi, Romania 4 „Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, D. 61A Mangeron Str., 700050, Iasi, Romania 5 Center of Excellence Geopolymer & Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia Our paper presents the influence of the NaCl aerosol resulted in situ, in dynamic halochambers, by structural reformation of salt aerosols in the presence of pentahydrol, on the volume of exhaled air, arterial tension and pulse of children, as a result of systemic controlled practice of team and individual physical education games, with subjects of ages from 10 to 15. For reference we used children of the same age and with the same physical education program, but whose activities were performed in open spaces, or in gyms, without salt aerosols. Our study emphasized the fact that the NaCl aerosols formed in situ, in the atmosphere of the halochamber, at a rate of over 0.600mg/m 3 of salt aerosols influences the lung capacity, which was sensible increased in both male and female subjects when exercises were performed in halochamber, compared to outdoor and the body started to recover easier after physical efforts, especially after exercises that involved moderate efforts Keywords: salt aerosols; halotherapy; functional characteristics; harmonious physical development The aerosols of NaCl from natural sources (marine aerosols and salt aerosols), or from artificial sources (halochambers, saline devices, or inhalers) are polydisperse systems whose particles cover a wide range of sizes, between simple aquated ions to gigantic- sedimentable particles (>1000nm). Among these, in gaseous atmospheres, under the influence of water oligomers (in environments with an air humidity between 85 and 100%UR), starting from the Aitken particles (<50nm) to the sedimentable ones (with a diameter of approximately 500nm), some transform into solions - shape-shifting glomerule particles in a continuous structural reformation, with negative charged mono-molecular water dipole surface layer and a composition consisting of a single type of salt [1-15]. Those particles, who reformed structurally from salt aerosols under the influence of the pentahydrol in damp environments, are structures with the formula [x(NaCl) 2n ×y(H 2 O) 5 ] (aq) q- , where n>2 and x and y correspond to glomerules with diameters ranging between 50 nm and 100nm, whose surface charge is subunitary q, which makes the solions behave as a negative spherical air ion with a neat internal structure consisting of NaCl nano-polyhedrons and of water pentahydrols, shaped as a crystalline cluster [2, 8-10, 12]. Moreover, in aqueous saline solutions, right below the hypersaturation limit, under the microscope one may note the presence of spherical solions, as glomerules, resulted by structural reformation from nanocrystalites subject to the balances of dissolution-recrystalisation processes, with an electrostatic halo around them, due to their negative charge, which keeps them apart [11]. By increasing the concentration to the over-saturation limit of NaCl, after processes of solvolysis, the nonopolyhedrons in the clusters reunite by recrystallization, forming octahedric microcrystallites. * email: ion.sandu@uaic.ro The polygonal aerosol nanocrystalites absorbed into the tissue (teguments, or pulmonary pleura) may cause damage by dehydrating the contact area, while solions, due to processes of delicvescence and solvolysis, enhance the bioactive processes within the areas they interact with [2, 11, 12]. Thus, for therapeutic environments, they use submicronic, gaseous microdispersions, both as solions (hygro-, or aquo-aerosols) and as partially dry aerosols. For ambiental environments, to generate the “clean air effect”, they primarily use partially dry aerosols with a negative superficial charge. They destabilize, by electro- neutralization, the positive charged aerosols, such as those resulted from burning/pyrolysis (for example cigarette smoke), as well as the nanodispesions resulted from the metabolism of certain fungi, or moulds [8-12, 16-20]. Saline/salt aerosols resulted from natural or artificial sources, depending on their practical application, should have well monitored specific lifespan and activity, that is, a minimum concentration value, a specific grain size variation range and a specific negative surface charge which are thoroughly controlled in time [2, 8-12]. There are several studies on the impact of negative salt air ions and of solions on human performance and especially on that impact on children, elderly persons and on sportsmen [8-13, 16-22]. In that regard, the present paper presents the results of experiments on the influence of semi-hydrated solions on pupils who perform their physical education classes in an environment with an optimal level of aerosols (0.6…1.2mg/m 3 ), which should induce a harmonious development of their functional anthropometric characteristics, by improving their dynamic characteristics and their resistance to physical efforts.