As a result of economic development and an increase in the volume of industrial production, the use of dangerous substances is increasing despite the fact that most industrial facilities are committed to the principles of environmental protection and sustainable development. Protection of human health and the environment is ensured at the local level by the local safety system. Major accidents typically have an off-site impact that also affects the general public. The most significant asymmetric event is when toxic substances are release into a populated area following a major accident. Early warning systems can significantly reduce the harmful consequences of major accidents that may occur. The operation of a reliable and effective chemical monitoring and public alarm system can be used as a basic device of defence. This ultimately means restoring the symmetry of the local safety system. It was an important scientific objective in Hungary to identify the facilities endangering the population where it is necessary to install chemical monitoring and early warning external protection systems. In this context, the main objective of this study was to present dangerous plant identification methodology and to analyse and evaluate the results of the application of this methodology.

Today, smart city principles are emerging as a highly relevant method in contemporary urban planning and development. In line with international trends, nations almost without exception have smart city strategies. The assessment system supporting smart development strategies for EU municipalities defines complex indicators in six thematic sub-systems: smart mobility, smart environment, smart people, smart living conditions, smart governance, smart economy. One monitoring aspect of the smart living subsystem is safety. The smart cities of the future will be made up of a network of smart buildings, which will fundamentally determine fire safety based on prevention. In this monitoring theme, the researchers will show how the future of fire safety - a cornerstone of safety- will evolve in smart buildings of smart cities. The researchers will describe the potential of building a smart fire safety network using data generated by building information modelling. They will show how BIM-based complex digital fire safety can be integrated into the fire safety network based on the new digital “one urban one plan” regulation in Hungary. The authors show that their method is suitable for the expansion of a smart cities database based on a digital urban plan.

The author analyses both the education system of Disaster Management Institute of Hungarian National University of Public Service and industrial safety expert training are analysed in the article.

Aim: The purpose of this study is to analyse and evaluate the main results and experiences of disaster management research and development activities, on the basis of which to determine future development directions. Methodology: The impact assessment prepared in the framework of the study presents the characteristics of disaster management research and development activities, and also makes structured proposals for solving the appeared research problems. Findings: The results of disaster management scientific activity carried out as part of law enforcement researches provide an opportunity to modernise the legal regulatory, professional and technical bases of disaster management administration in a manner appropriate to recent scientific development. Value: The disaster management research and development experiences processed in the framework of the study provide a suitable basis for a high level of compliance with the relevant social needs.

On the occasion of building fires, the risk of smoke, which adversely influences escape conditions, must be minimised. One way to reduce the risk is, for example, to pressurise the escape route in order to limit the infiltration of smoke. Careful determination of the design parameters of the pressurisation system is of great importance. This study will propose a new leakage area for single-leaf smoke control doors based on the analysis of the leakage area of the doors in the EN 12101-13 standard, estimating the leakage rate through closed doors. This value is half the currently recommended value, regardless of the opening direction. The determination of the leakage area is supported by measurements in pressurised smoke-free lobbies with single-leaf smoke control doors opening into and outwards from a pressurised space. The measurements are performed using the fans of the lobbies’ pressurisation systems to provide the required air volume. The suitability of this method has also been tested using blower door assembly measurements. The newly proposed leakage area takes into account the increased air tightness of the smoke control doors, thereby ensuring that the optimum air volume to be supplied by the pressurisation system can be determined. The results of this research suggest an appropriate leakage area value for designers when using the calculation method proposed by the applicability of the investigated standard.

Computer Program ILT15 developed to accompany a new leach test for solidified radioactive waste forms in the Hungarian NPP Paks. The program is designed to be used as a tool for performing the calculations necessary to analyse leach test data, a modelling program to determine if diffusion is the operating leaching mechanism (and, if not, to indicate other possible mechanisms), and a means to make extrapolations using the diffusion models. The ILT15 program contains four mathematical models that can be used to represent the data, diffusion through a semi-infinite medium, diffusion through a finite cylinder, diffusion plus partitioning of the source term and solubility limited leaching. The program is written in C++ in the Borland C++ Builder programming environment. A detailed description of application of this modelling computer program is given.