Mapping the hazards of transport of dangerous substances by rail

The aim of the following contribution is the mapping of hazards of transport of dangerous substances on a chosen railway stretch in the Moravian-Silesian Region. The mapping will be used for the preparation of a new module “Railway” for the prototype software system FLOREON+. The mapping focuses on railway critical points, such as level crossings, underpasses, bridges, where an increased risk of accidents exists. The contribution also deals with the issue of the most common causes of more or less severe railway accidents leading to injury and/or loss of human life and property damage

Explosion risk assessments for facilities with compressed flammable gases

In the fi rst part of the article we discuss the possibilities and analytical tools that can deal with the classifi cation of space into zones with danger of explosion for devices with the presence of compressed fl ammable gases. Then we continue with specifi cations of possibilities for practical utilization linked to variables such as ventilation degree, hypothetical volume etc., including the examples. At the end we also give a brief overview of software for modelling gas leak, including examples of an outcome

Noise pollution and its correlations with occupational noise-induced hearing loss in cement plants in Vietnam

Noise-Induced Hearing Loss (NIHL) is a global issue that is caused by many factors. The purpose of this study was to survey noise level to identify NIHL and its relationship with other factors in cement plants in Vietnam. Noise level was measured at one cement plant and three cement grinding stations located in the South of Vietnam. The audiometric data of exposed workers were surveyed to determine NIHL. Finally, the relationship between NIHL and noise level in cement plants was determined. The results show that noise level in almost all processes exceeded the permissible exposure limit (PEL). In this study, 42 cases (10% of exposed workers) with occupational NIHL were found with mean age (SD) of 49 (9.0) years. All NIHL cases were found in the departments in which the noise level exceeded the PEL, which included quarry (n = 16), maintenance (n = 12), production (n = 10), co-waste processing (n = 3) and quality assurance (n = 1). There was a positive and significant correlation between the NIHL and the excessive noise exposure in the cement plants (r = 0.89, p = 0.04).Web of Science188art. no. 422

Air pollution associated with total suspended particulate and particulate matter in cement grinding plant in Vietnam

Air pollution associated with suspended particles has become a significant concern in Vietnam recently. The study aimed to (1) investigate dust sources; (2) measure concentration levels of Total Suspended Particulate (TSP), Particulate Matter (PM) fractions; (3) identify silica levels and the correlation with respirable particles at a cement grinding plant in Vietnam. A total of 312 samples (52 TSP, 160 PMs) at 13 processes were measured using the direct-reading dust meter. The silica composition was analyzed in a certified laboratory using the X-ray fluorescence (XRF) technique. SPSS version 26 for Window was used to analyze the data. The operations of the cement grinding plant created multiple dust sources from the jetty to the cement dispatch process. The TSP levels ranged 0.06-38.24 mg m(-3), and 40.38% (n = 21) TSP samples exceeded the Permissible Exposure Limit (PEL) for an 8-h working shift. Besides that, there was a wide range and significant concentration levels of PMs in the cement processes. The levels of PMs were PM1 (0.00-0.06 mg m(-3)), PM2.5 (0.01-0.83 mg m(-3)), PM4 (0.02-4.59 mg m(-3)), PM7 (0.03-16.94 mg m(-3)), and PM10 (0.04-26.85 mg m(-3)). The highest mean levels of PMs factions were measured at the pre-grinding process. The inefficient operation of the dust collector contributed a significant factor to the dust dispersion in this process. The silica's mean (SD) composition in respirable dust was 20.4% (0.86) and was not significantly different amongst the processes. There was a significant correlation between the levels of respirable dust and silica exposure in the cement grinding plant (r = 0.99). The improvement of indoor air quality is needed to prevent health effects on cement workers.Web of Science1212art. no. 170

Prevention and mitigation of injuries and damages arising from the activity of subliminal enterprises: A case study in Slovakia

The paper focuses on risk sources under no legislative pressure in the field of prevention of major accidents. Despite this, they can represent significant sources of risk of accidents. The aim of the paper is to present the results of the risk assessment associated with the operation of enterprises not regulated by the SEVESO III Directive (the so-called subliminal enterprises), to provide information on possible operational problems and to verify the applicability of recognized risk analysis methods for these specific sources of risk. Last but not least, its purpose is to point out that subliminal enterprises, due to their location close to residential areas or areas with a high concentration of population, pose a serious risk to the population. The paper summarizes the results of the quantitative risk assessment of a specific enterprise not included in the Seveso Directive & ndash; a filling station. Filling stations are frequently located in built-up areas with a dense coefficient of habitability. Due to their number, location (e.g. close to residential areas), frequency of occurrence of persons in the area and handling of dangerous substances during normal operation, they can have negative or even tragic consequences to the life and health of the population. Due to the non-existent risk assessment methodology for enterprises with subliminal quantities of dangerous substances and the lack of a systematic search for risk sources, a risk assessment procedure for these companies is designed.Web of Science70art. no. 10441

Metodika hodnocení environmentálních rizik průmyslu

Import 20/04/2006Prezenční výpůjčkaVŠB - Technická univerzita Ostrava. Fakulta hornicko-geologick

Studie hodnocení podlimitních zdrojů rizik

Import 23/10/2008PrezenčníNeuvedenoNeuveden

Assessment of risks of major accidents of chosen installations containing ammonium

Amoniak je často používaná chemická látka v různých průmyslových odvětvích, kdy se využívá jeho specifických vlastností především jako chladícího média. Na druhou stranu amoniak představuje významnou nebezpečnou látku pro člověka a životní prostředí z hlediska toxicity. Cílem příspěvku je charakteristika různých technologických zařízení s amoniakem a hodnocení společenského rizika závažných havárií pomocí vybraných metod.Amonium is chemical substance frequently used in various branches of industry, when its specific properties, especially as a cooling medium, are utilised. On the other band, ammonium represents a significant substance dangerous to a man and the environment from the point of view of toxicity. The aim of the contribution is the specification of various installations containing ammonium and the assessment of societal risk of major accidents by means of chosen methods