scholarly journals Modelling and forecasting the workplace environmental physical factors values

2019 ◽  
Vol 1-2 (100) ◽  
pp. 21-33 ◽  
Author(s):  
O. Kruzhilko ◽  
R. Cherneha ◽  
V. Maystrenko ◽  
O. Polukarov ◽  
V. Kalinchyk

Purpose: To develop a mathematical model for predicting the workplace environmental physical factors values. Design/methodology/approach: Experimental measurements of the harmful and dangerous physical factors values of workplace environmental were carried out using special certified equipments. For each physical factor, 200 measurements were carried out. The workplace choice is justified by the employees’ survey and specialists’ expert evaluation results. Prediction methods that can be used to predict the workplace environmental physical factors values have been analyzed analytically. Working conditions assessment was carried out in accordance with the classification of working conditions for workplace harmfulness and danger, which function in Ukraine. Findings: For a preliminary assessment of the impact of environmental physical factors on workers, it is proposed to use the strict ranking method. It has been established that the proposed mathematical models for predicting the workplace environmental physical factors values (noise, dust, vibration, relative humidity) have an accuracy of more than 90% and can be used for planning measures to working conditions improve. Research limitations/implications: The results of a study of modelling and forecasting the workplace environmental physical factors values at the enterprise for the manufacture of glass and glass products at workplaces of transportation, preparation and mixing of materials are shown. Mathematical models for four physical factors are presented: noise, dustiness of air, vibration, relative humidity. Practical implications: Mathematical models make it possible to predict the environmental physical factors values (noise, vibration, dust, humidity) taking into account the specifics of the production process, assess the hazard class and harmfulness of working conditions at workplaces and justify the measures at labour protection. Originality/value: For the first time proposed by the mathematical models for predict the environmental physical factors values (noise, vibration, dust, humidity) taking into account the specifics of the production process.

Author(s):  
Nina M. Meshchakova ◽  
Marina P. Dyakovich ◽  
Salim F. Shayakhmetov

Introduction.Methanol and its derivatives occupy one of the leading places among the main organic synthesis intermediates in terms of their importance and scale of production. According to experts, by 2027 the global demand for methanol can reach 135 million tons, the annual growth will be about 5.5%. However, there is little information regarding the assessment of working conditions and occupational risks for workers in modern methanol production and its derivatives.The aim of the studyis hygienic assessment of working conditions and the formation of health risks in workers of modern production of methanol and methylamines.Materials and methods.The assessment of the main adverse factors of production is given. When studying the state of health, objective indicators (the results of an in-depth medical examination) and subjective (the results of a quantitative assessment of the risks of the main pathological syndromes associated with health) are considered.Results.According to long-term observations, the concentration of harmful substances in the air of the working area, indicators of labor severity, parameters of physical factors met hygienic requirements, with the exception of industrial noise exceeding the maximum permissible level, as well as labor intensity of 1 degree. The General assessment of working conditions corresponds to the category of harmful 2 degrees (3.2). According to the results of the medical examination and quantitative assessment of the risks of health disorders in workers, the most significant were functional disorders and diseases of the circulatory system. The levels of somatic pathology on the part of the main body systems were significantly higher in apparatchiks compared to the engineering and technical personnel (ETP).Conclusions:In the production of methyl alcohol and methylamines, the main hygienic importance is the impact on workers of the complex of harmful substances of 1-IV hazard classes in low concentrations, increased levels of industrial noise, labor intensity of 1 degree. According to the subjective assessment of health and medical examination, the greatest prevalence of health risks in workers was observed from the circulatory system, and the levels of the revealed somatic pathology were statistically significantly higher in apparatchiks compared with the ETP.


Author(s):  
Yu.N. Kaskov ◽  
V.A. Loginova ◽  
S.D. Krivulya

Hygienic assessment of working conditions of locomotive brigades over the period 2006–2015 on the results of the Federal state sanitary and epidemiological surveillance and health monitoring was conducted. It was found that the leading factor in formation of professional pathology is the impact of physical factors.


Author(s):  
Elena Abrakhmanova ◽  
Lyaylya Masyagutova ◽  
Aynur Gabbasov ◽  
Akhat Bakirov ◽  
Galina Gimranova ◽  
...  

The work presents data analysis of the results of special assessment of working conditions for workers of various branches of economy in the Bashkortostan Republic. Results of special assessment of working conditions (SAWC) and medical examinations were used for the analysis. It is noted, that some professional groups, for example, persons performing their work in the sphere of agriculture, have no exposure to the biological factor. Construction workers were not exposed to industrial vibration, while the noise level for half of the analyzed cases was of class 2.0, although in most cases, industrial noise and vibration have single source. Proportion of facilities that revealed a discrepancy between levels of harmful industrial factors and requirements of sanitary legislation remains high. The greatest share of objects does not correspond to sanitary and epidemiological requirements according to the chemical and physical factor. At the moment, SAWC does not fully reflect the working conditions of employees in different sectors of production. Underestimation of its influence on working conditions of workers is typical for a considerable number of professional groups and individual jobs. Analysis on the basis of SAWC is not sufficient for a hygienic assessment of the impact of production environment factors and labour process on health and requires comprehensive assessment methods.


2017 ◽  
Vol 6 (2) ◽  
pp. 100-105
Author(s):  
Сушков ◽  
Sergey Sushkov ◽  
Пильник ◽  
Yuliya Pilnik

Consideration of transport as one of the main components of the production process and the analysis of the linkages of forestry sector with other sectors of production are based on the study of the proportions between the volumes and the structure of harvested timber and the products of all other industries. The analysis in this part of the proposed conduct on the basis of mathematical models, in particular, for the analysis of quantitative relationships of the production process, assess the impact of various factors on the dynamics of economic development, to analyze the prospects of their development.


Author(s):  
Elizaveta Dubovenko ◽  
Yuriy Katul'skiy ◽  
Mihail Ignatov

Hazardous and dangerous production factors on the operator of the pre-insulated pipe production site is considered. It is shown that working conditions correspond to hazard class 3.2.


Author(s):  
A. M. Lazarenkov

The results of the study of working conditions working in electroplating shops. It is shown that the main production factors of working conditions are noise, vibration, dust, gas contamination, relative humidity of air, the severity and intensity of the labor process. The results of the studies have shown that at all workplaces there are exceeding of the permissible values for noise level, the content of harmful substances in the air of the working environment when working directly with the galvanic baths, the relative humidity of the air. It is noted that the work performed on the severity and intensity of the labor process can adversely affect the health of workers.


Author(s):  
E. A. Mishina ◽  
I. . Kudryashov ◽  
O. V. Belometsnova

A comprehensive study of working conditions and health status of individuals running the crusher machines was done. Occupational risk assessment was conducted. The impact of the production process on the body systems functioning was estimated.


Author(s):  
Liliya Aleksandrovna Yatsenko ◽  
Nikolay Petrovich Mamchik ◽  
Olga Vladimirovna Kameneva

Every year, the consumption of vegetables grown on the territory of our country increases, which became possible not only in the summer, when mass cultivation begins in the open ground, but also in winter, due to the functioning of a large number of greenhouse complexes. Greenhouse vegetable growing is a priority in the development of the agro-industrial sector of the state. On the territory of the country, greenhouses exist for a fairly long period. Modern greenhouse complexes differ both in the way of growing vegetable products and in the working conditions of employees. Working in greenhouses that use soil is associated with physical stress, in contrast to modern complexes, where the work on watering plants is automated, and plant care has new means of mechanization. Hygienic assessment and comparative characteristics of the working conditions of greenhouse workers were carried out when performing work during the annual cycle of growing vegetable products. The effect of physical factors and the severity of the labor process was evaluated. The results of the study showed that the work of vegetable growers working at enterprises with different technologies of crop cultivation differs both in the impact of physical factors and in the class of labor severity. Modern greenhouse complexes are able to create favorable climatic conditions for personnel, thanks to an automated microclimate management system. With the mechanization of the labour process, working conditions talionic improved with class 3.2 (harmful heavy labor 2-degree) to class 3.1 (harmful hard work of 1 degree). Comparative characteristics of the working conditions of greenhouses, allowed us to talk about the introduction of new technologies in the process of growing vegetables, as an event that contributes not only to improving the productivity of vegetable crops, but also a preventive measure that improves the working conditions of vegetable growers.


Author(s):  
M. A. Zemlyanova ◽  
Yu. V. Koldibekova ◽  
V. M. Ukhabov

Introduction. The health of workers is determined by both social and individual, as well as production factors, including noise, vibration and dust, characteristic of technological processes in mining enterprises. Industrial noise above 90 dBA and dust in the form of suspended and fine particles causes dysfunction of the cardiovascular system and respiratory organs.The aim of the study is to assess the impact of harmful physical factors and industrial dust on changes in some biochemical and functional indicators of the cardiovascular system and respiratory system of employees of the enterprise for underground mining of ore.Materials and methods. The assessment of working conditions of workers engaged in underground mining and processing of chrome ores, the analysis of industrial dust on the dimension and quantitative content of fine particles PM10 and PM2. 5, the study of biochemical parameters of lipid metabolism, oxidant and antioxidant systems, indicators of respiratory function. Results. Harmful working conditions (class 3.1–3.4) in terms of noise and vibration were revealed at the workplaces of employees of the main specialties observation group. In the air of the working zone, the highest content of fine particles PM2.5 (2.68±0.54 mg/m3) and PM10 (4.64±0.93 mg/m3) was established at the site of drilling operations and cleaning of the bottom-hole space. Deviations of biochemical parameters characterizing intensification of free radical processes and antioxidant protection, imbalance of lipid spectrum parameters, and violation of functional parameters of external respiration were revealed. A high degree of connection with the working conditions of the frequency of increased levels of lipid hydroperoxide and antioxidant activity (EF=60.71–65.84%) was established.Conclusions. In high noise level (more than 94 dBA), general and local vibration (more than 116 and 127 dB respectively) and the content of fine particles PM2. 5 (more of 2.14 mg/m3) and PM10 (over of 3.71 mg/m3) at underground mining of chrome ore workers have identified abnormalities in the form of increase 1.6 times the level of lipid hydroperoxides and total antioxidant activity, reducing to 1.2 times the level of high density lipoprotein, improving 1.2–1.3 times of low-density lipoproteins, triglycerides, and atherogenic index in blood serum, peak expiratory flow. A high degree of professional conditioning have the frequency of increasing the level of lipid hydroperoxide in blood serum and antioxidant activity of blood plasma.


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