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Background: The study responds to real needs of knowing the bioclimate of some tourist resorts in order to develop different types of tourism, in which the bioclimate plays a significant role. In Romania, a similar study was carried out for the resort towns of Vatra Dornei and Tg. Ocna. Methods: The research is based on time series of weather elements from 1961-2021. These series were used for the calculation of the bioclimatic index of the physiological equivalent temperature (PET) which allows the analysis of the temporal peculiarities of the bioclimate. In order to highlight in a new perspective the relationship between biocli-mate and tourism in the Piatra Neamț resort, we created climate-tourism schemes (CTIS). Results: PET values ranged between a maximum of 35.7°C (severe thermal stress due to heating) and a minimum of - 29.3°C (extreme thermal stress due to cooling). The mean PET value was 8.8°C (indicating moderate cold stress). The period of the year with biocli-matic comfort, for hiking, visiting, outdoor sports, climatotherapy, balneotherapy corresponds to the interval April (3rd decade) - October (1st decade). Conclusions: Tourists who want to plan their vacation in Piatra Neamț will benefit from non-restrictive bioclimatic conditions from the end of April to the beginning of October. During the cold season, with a layer of snow, winter sports can be practiced. [ABSTRACT FROM AUTHOR]

This study analyses the bioclimate of Cacica and Târgu Ocna resorts and of the salt mines on their territory, based on the Thermo-Hygrometric Index (THI). The bioclimate was analyzed based on hourly data (air temperature and relative humidity) from 2020-2022. The annual and diurnal regime of THI in the two resorts and the two underground salt mines were investigated and periods of bioclimatic comfort were identified. Thus, at Cacica, the comfort period covers the months of June-July-August and partly September, while at Târgu Ocna the period starts one month earlier (in May) and extends by one month compared to Cacica resort (until September). It is worth noting the presence of clusters of days or hours with thermal discomfort caused by heat, especially in Târgu Ocna (in July and August). Over the course of a day, bioclimatic comfort based on the THI index is reached in Cacica, during the summer, from 6.00 a.m. and lasts until midnight. In the transition months, April, May and October, comfort is felt between 11.00 a.m and 6.00. p.m. In Târgu Ocna the bioclimatic comfort is specific to summer throughout the day, with a more pronounced discontinuity in the afternoon hours, when the discomfort caused by the heat sets in. The salt mines benefit from a thermal stability that is reflected in the slightly variable THI values and in a slight cooling discomfort. The stable atmosphere and the microclimatic uniformity give Cacica and Trotuș salt mines certain balneoclimatic qualities recommended both for tourists and patients (with respiratory diseases). [ABSTRACT FROM AUTHOR]

This study captures for 6 days in May and August 2022 (time interval 8:00 AM-8:00 PM) the atmospheric levels of positive and negative ions in the atmosphere of three balneoclimatic resorts in north-eastern Romania (Solca, Cacica and Gura Humorului), in correlation with the values of meteorological elements of those days. The concentration of aeroions was measured hourly, in 2+2 days, in a characteristic point of each resort and on September 15, 2022 in 3 points / levels of Cacica salt mine. With average values of aeroion levels above 1000 / cc (1054 / cc at Solca, 1069 / cc at Gura Humorului and 1468 / cc at Cacica) the atmosphere of these resorts can be therapeutically exploited by aeroionotherapy. In the Cacica salt mine the aeroelectric potential is very high, here the total aeroion load varied between 9,026.5 and 11,464.5 aeroions/cc. The unipolarity coefficient (k) had average values of 0.72 at Solca, 0.9 at Cacica and 0.97 at Gura Humorului, indicating in all three resorts a quality air with therapeutic properties. In the Cacica salt mine the average value of the unipolarity coefficient was 1.26, with slight variations from one room to another. [ABSTRACT FROM AUTHOR]