Over the past 50 years the use of air conditioning in non-domestic buildings has become a norm and an indicator of status. Today the rediscovering of the natural ventilation is a part of rediscovering the buildings' energy efficiency, or maybe even a part of a wider approach, which is a desire to be closer to nature. The main task of all ventilation systems is to maintain an appropriate indoor air quality and to improve the indoor environment. Natural ventilation systems could do the above using less energy than mechanical systems. However, it requires also the implementation of other passive measures. The most important of them are: the reduction of the harmful air contaminants, the control of heat gains, the exposition of the building's thermal mass and utilisation of the night cooling. Because of energy efficiency and thermal comfort reasons, in temperate climate ventilation systems have to work according to at least three scenarios: spring/autumn, winter and summer. The thermal comfort parameters in naturally ventilated buildings are usually more variable than in air-conditioned ones, what does not mean that the occupants will experience thermal discomfort. Therefore, thermal comfort in passively ventilated buildings should be evaluated according to the adaptive comfort standard, ...
The article presents an analysis of pro-ecological activities undertaken by the Commune Council of Nowy Targ in order to reduce low emission, and consequently to introduce a broadly understood low-carbon economy in this area. The commune aims at abandoning fossil fuels in favor of cleaner and safer methods of obtaining energy, which is to contribute to the reduction of PM10 and PM2.5 particulate matter emissions. In the nationwide arena, the commune was awarded in activities leading to the liquidation of low-emission as part of the competition for communes with a population up to 50,000 inhabitants and taking the second place in Poland in the "Gmina z Misją" ranking. The town of Nowy Targ was also the laureate of the fourth edition of the "#ekoLIDERZY2017 of the Małopolska Province" contest organized by the Provincial Fund for Environmental Protection and Water Management in Krakow (WFOŚiGW) and won the prize of PLN 20,000 in the category of "#ekoPRZEDSIĘWZIĘCIE" in the field of air protection and investments contributing to energy savings. In the commune, interventional and preventive inspections are carried out on an ongoing basis. In January 2017, the mayor appointed an advisory team for the analysis of the degree of implementation of actions ...
The article analyzed the results of air quality measurements in the city of Nowy Sącz and assessed the activities of the local government to reduce low-stack emission. Nowy Sącz is among the top European cities with the most polluted air. According to the annual mean PM10 particles levels within the Małopolska Province, Nowy Sącz belongs to the group of cities and poviats where the highest levels of this pollutant are recorded. In the case of PM2.5 particles, Nowy Sącz is the second city after Krakow in the Małopolska Province, where there is a significant exceedance, including the margin of tolerance, of the limit value of the pollutants. The backgroundand inflow of pollutants from outside the city reaches the level of about 17 μg·m-3, i.e. 85% of the limit value and 50% of the total level of the pollutant in the city. The local government undertakes investments aimed at improving air quality, inter alia: thermo-modernization of buildings, Renewable Energy Sources installation (solar installations) in buildings, elimination of coal boilers and replacing them with gas boilers or new generation boilers. ...
