scholarly journals Acoustic Safety Management at the Locksmith’s Workplace Mechanic-Repairman to Replace the Filter Material in the Technological Process of Obtaining of Apatite Concentrate

2021 ◽  
Vol 248 ◽  
pp. 02012
Author(s):  
Ekaterina Chalovskaya ◽  
Tatiana Kaverzneva ◽  
Igor Skripnik ◽  
Vladimir Senchenko ◽  
Ilya Klochihin
Keyword(s):  
Human Health ◽  
Technological Process ◽  
Working Conditions ◽  
Noise Level ◽  
Production Control ◽  
Safety Management ◽  
Negative Impact ◽  
Filter Material ◽  
Filter Cloth ◽  
Apatite Concentrate

In this work, measures are being developed to reduce the noise level at the workplace of a mechanic-repairman to replace filter cloth. Based on the results of production control and a thorough assessment of working conditions, the source of noise was determined to be the VDN-17 fan. The analysis of Russian and foreign studies in the field of the negative impact of noise on the human health and methods of dealing with industrial noise has been carried out. As a result, a technical method of reducing negative impact of noise was selected and the acoustic efficiency of the muffler for the VDN-17 fan was calculated.

scholarly journals Main aspects of vibroacoustic factors assessment

2021 ◽  
pp. 13-22
Author(s):  
Nail Kh. Abdrakhmanov ◽  
Artem V. Fedosov ◽  
Alina N. Khamitova ◽  
Ilzida I. Badrtdinova ◽  
Gleb L. Matuzov
Keyword(s):  
Human Health ◽  
Working Conditions ◽  
Human Body ◽  
Negative Impact ◽  
General Information ◽  
Basic Information ◽  
Problem Statement ◽  
Noise And Vibration ◽  
Production Factors ◽  
Harmful Effects

Introduction. In the age of automation and mechanization of labor, noise and vibration have become the leading dangerous and harmful production factors (DHPF) in various industries and agriculture. In order to reduce the harmful effects of vibroacoustic factors on the human body, first of all, it is necessary to evaluate this factor. The article provides general information on the assessment of working conditions under the influence of vibroacoustic factors. Problem Statement. The aim of this work is to study the main aspects in the assessment of vibroacoustic factors. Theoretical Part. As basic information, the paper provides the definitions of noise and vibration, their main characteristics, classification, hygienic regulation, the negative impact of these factors on human health, methods of assessment and measures of protection against them. Conclusion. The study of the main aspects of the assessment of vibroacoustic factors allows us to analyze the DHPF and further develop measures to reduce the negative impact of these factors on the human body.

scholarly journals Hygienic Evaluation of Working Conditions of the Process of Mechanical Processing of PET Bottle

2021 ◽  
Vol 6 (2) ◽  
pp. 133-138
Author(s):  
Olha Malyshevska ◽  
Keyword(s):  
Technological Process ◽  
Working Conditions ◽  
Negative Impact ◽  
Polymer Processing ◽  
The Body ◽  
Labor Process ◽  
Mechanical Processing ◽  
Production Environment ◽  
Polymer Waste ◽  
Processing Polymer

Polymer processing belongs to the category of hazardous industries and requires a deep and comprehensive analysis of the production environment from a hygienic point of view in order to minimize the negative impact on human health and components of the biosphere. The purpose of the study. It is important to study a set of adverse factors that affect employees in the process of processing polymer waste, to establish the relationship with the development of general and occupational diseases. Results and discussion. It has been established that the working conditions of the process of processing polymer waste have a combined effect on the body caused by a set of adverse production factors of different actions. The main ones are: dust in the air of the working area with polymer dust with mixed and unstable composition over time, noise, cooling microclimate, difficulty of work. The excess of maximum permissible concentration for dust load on the body of workers in the process of mechanical processing of PPV is from 1.35 times to 1.74 times, at the workplaces of the baler and shredder and unloading-packing operator (working conditions class 3.1). Exceedance of the sound pressure level in the range from 2 dBA to 15 dBA was recorded at all workplaces (working conditions class 3.2). The parameters of the microclimate at all workplaces, except for the forklift operator, belong to the harmful class of working conditions 3.1. According to the severity of the labor process, the working conditions of employees vary from allowable 2 (operator of the technological process) to harmful 3.2 (baler and shredder operator). In terms of intensity, the working conditions of all employees belong to harmful class 3.2, due to the significant noise load, which prevents the capture and transmission of information between participants in the processing process, as well as timely receipt of audio signals from the process operator and equipment. Mostly working conditions of employees in the process of processing PPV mixtures belong to class 3.2, except for the forklift operator (class 3.4). As for the integrated assessment, according to the hygienic classification, working conditions of operators of unloading-packing, crushing, technological process and baler are evaluated according to class 3.2, and the truck operator - 3.4 according to state sanitary rules and regulations "Hygienic classification of labor according to the indicators of harmfulness and danger and the intensity of the labor process" (order of the Ministry of Health dated 08.04.2014 No.248,), which can lead to the development of work-related diseases

scholarly journals Associations between labour market policies and work stressors

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
T Lunau ◽  
M Rigó
Keyword(s):  
Labour Market ◽  
Working Conditions ◽  
Job Strain ◽  
Negative Impact ◽  
Policy Implications ◽  
Psychosocial Work ◽  
Work Stressors ◽  
Labour Market Policies ◽  
Psychosocial Working Conditions ◽  
European Working

Abstract Background Many studies have shown that psychosocial work stressors have a negative impact on health. It is therefore important to understand how psychosocial work stressors can be reduced. First cross-sectional studies have shown that working conditions are influenced at the political level. With this study, we want to extend the existing studies by specifically looking at the longitudinal dimension and test if changing labour market policies are related to changes in psychosocial work stressors. Methods We used comparative longitudinal survey data from the European Working Conditions Survey (27 countries; years 2005, 2010, 2015). The measure of psychosocial work stressors is based on two established work stress models: job strain and effort-reward imbalance. To measure labour market policies we used information on active (ALMP) and passive labour market policies (PLMP). 64659 participants were eligible for the ERI analysis and 67114 participants for the analyses on job strain. Estimation results are provided by three-level multilevel regressions. Results An increase in ALMP investments lead to a decrease of ERI and therefore to an improvement in psychosocial working conditions. The analyses for the subcomponents showed that these results are mainly driven by reward: an increase in ALMP investments lead to an increase in rewards. We didn't find significant associations between ALMP and job strain and between a change in PLMP measures and the observed work stressors. Discussion The study extends current knowledge with longitudinal information by showing that an increase in ALMP lead to an increase in rewards and a decrease of ERI. These longitudinal analyses are more closely related to a causal interpretation than previous cross-country analyses. The findings of this study may have important policy implications. Our main result suggests that investments into ALMP can improve certain working conditions and therefore improve workers' health. Key messages Psychosocial work stressors have a negative impact on health. Investments into active labour market policies can improve psychosocial working conditions.

scholarly journals Decreased cortisol among hikers who preferentially visit and value biodiverse riparian zones

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ellie Opdahl ◽  
Kathryn Demps ◽  
Julie A. Heath
Keyword(s):  
Ecosystem Services ◽  
Human Health ◽  
Salivary Cortisol ◽  
Hot Spots ◽  
Negative Impact ◽  
Well Being ◽  
Riparian Areas ◽  
Indirect Pathway ◽  
Aesthetic Value ◽  
Gps Tracks

AbstractWhile outdoor recreationists often report increases to their well-being for time spent in nature, the mechanisms through which local ecologies affect human health have been difficult to quantify, and thus to manage. We combine data from pre-post salivary cortisol measures, GPS tracks, visitor photos, and surveys from 88 hikers traversing several types of landscape within peri-urban public lands in southwest Idaho, USA. We find that time in biodiverse riparian areas and areas of perceived aesthetic value correlates with decreases in salivary cortisol and improved well-being for hikers. Wildlife sightings were not associated with changes in salivary cortisol, but were associated with riparian travel and aesthetic preferences, indicating an indirect pathway for ecosystem services. Additionally, wildlife sightings decreased on high-use days, even though hikers did not perceive a negative impact of their recreational activity. These results suggest that cultural and physiological ecosystem services of nature depend on the ecological community of the area. Preferential visitation and high service value of riparian areas by hikers and wildlife alike target shared riparian areas as hot spots for management efforts to promote both ecological and human health within an increasingly urbanizing world.

scholarly journals A Decision-Making Model for Deterring Food Vendors from Selling Harmless Low-Quality Foods as High-Quality Foods to Consumers

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Po-Yu Chen
Keyword(s):  
Public Health ◽  
Human Health ◽  
Safety Management ◽  
Criminal Liability ◽  
Protective Measure ◽  
Dynamic Approach ◽  
Food Adulteration ◽  
The Public ◽  
Food Market ◽  
Decision Making Model

For certain types of foods, food vendors often label low-quality foods that are harmless to human health as foods of excellent quality and sell these falsely labeled products to consumers. Because this type of food poses no harm to human health, when public health units discover their act of false labeling or food adulteration, vendors are only penalized with a fine rather than having them assume criminal liability. Upon discovering vendors act of falsely labeling food, public health units typically punish the involved parties according to the extent of false labeling. Such static protective measure is ineffective. Instead, the extent of punishment should be based not only on the extent of false labeling, but also on the frequency of food sampling as well as the number of samples obtained for food inspections. Only through this dynamic approach can food adulteration or false labeling be effectively prevented. Adopting the standpoint of the public sector in food safety management, this study developed a mathematical model that facilitates discussion on the aforementioned problems. Furthermore, we discussed how the supply-demand environmental factors of the food market are influenced by the administrative means that the public health units have used to prevent food false labeling.

scholarly journals MODELING OF THE SPREAD OF MOTOR TRANSPORT NOISE IN ŠIAULIAI CITY / AUTOTRANSPORTO TRIUKŠMO SKLAIDOS ŠIAULIUOSE MODELIAVIMAS / МОДЕЛИРОВАНИЕ РАССЕЯНИЯ ТРАНСПОРТНОГО ШУМА В ГОРОДЕ ШЯУЛЯЙ

2011 ◽  
Vol 19 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Leonas Paulauskas ◽  
Robertas Klimas
Keyword(s):  
Personal Computer ◽  
Noise Level ◽  
Negative Impact ◽  
Noise Measurement ◽  
Motor Transport ◽  
City Environment ◽  
Measurement Results ◽  
The Difference ◽  
Environment Noise ◽  
Level Detector

Rapidly growing urbanization causes the increase of noise level of various sources, that have a negative impact upon people's health. The contribution of noise caused by motor transport in city environment composes up to 80% of general impact of all the sources. The article presents the results of modeling of the spread of motor transport noise of Šiauliai city, maps of motor transport noise, recommendations for management of environment noise. MapNoise programme module, adapted to work in the ArcGIS Desktop 9.1 environment, was used for modeling motor transport noise. Noise measurement researches have been carried out using digital noise isolator Nor121, completed with digital level detector. NorXfar software was used to send the data to personal computer. Having evaluated the validity of modeling results it has been determined that the difference between the night noise modeling and measurement results does not exceed 2.2%, and varies from 0.5dB(A) to 1.1 dB(A). The obtained results indicate that 7.2% of the apartments of all city residents are influenced by the LDEN noise that exceeds the permitted noise level (LDEN >65 dB(A)) and 31.2% of the apartments of the residents are influenced by night noise that exceeds the permitted noise level (LN > 55 dB(A)). Santrauka Sparčiai vykstant urbanizacijos procesui, kinta įvairių šaltinių keliamo triukšmo lygis, didėja neigiama įtaka žmonių sveikatai. Miestų aplinkoje iki 80 % visuminio visų triukšmo šaltinių poveikio tenka autotransporto keliamam triukšmui.Straipsnyje pateikta autotransporto triukšmo sklaidos Šiauliuose modeliavimo rezultatai, autotransporto triukšmo žemėlapiai, aplinkos triukšmo valdymo rekomendacijos. Autotransporto triukšmui modeliuoti naudotas MapNoise programinismodulis, pritaikytas darbui ArcGIS Desktop 9.1 aplinkoje. Iš rezultatų matyti, kad 7,2% visų miesto gyventojų būstų yra veikiami paros triukšmo, viršijančio leidžiamąjį triukšmo lygį (LDVN > 65 dB(A)), ir 31,2% gyventojų būstų veikiami nakties triukšmo, viršijančio leidžiamąjį triukšmo lygį (LN > 55 dB(A)). Įvertinus modeliavimo rezultatų patikimumą nustatyta, kad paros ir nakties triukšmo modeliavimo ir matavimo rezultatų neatitiktis neviršija 2,2 % ir svyruoja nuo 0,5dB(A) iki 1,1dB(A). Резюме При быстром росте урбанизации увеличивается уровень шума, создаваемого разными источниками и отрицательно влияющего на здоровье населения. Шум от автотранспорта в городах составляет около 80% от всех источников шума. В статье представлены результаты моделирования рассеяния шума от автотранспорта в городеШяуляй, карты автотранспортного шума, рекомендации по управлению шумом в окружающей среде. Приизмерении шума был использован числовой анализатор шума № 121, укомплектованный с числовым детекторомуровня RMS. Для передачи данных в персональный компьютер использована программа NorXfer. Для моделирования автотранспортного шума использован программный модуль MapNoise, приспособленный дляработы в среде ArcGIS desktop 9.1. При анализе достоверности результатов моделирования было установлено, чтоих отличие от результатов измерения шума в течение суток и ночное время не превышает 2,2% и колеблется от0,5дБ(A) до 1,1дБ(A). Результаты исследования свидетельствуют о том, что 7,2% жилых помещений городаподвергаются суточному шуму, уровень которого превышает допустимый (LDVN > 65 дБ(A)) и 31,2% жилыхпомещенийгородаподвергаютсяшумувночноевремя,уровень которогопревышаетдопустимый (LN > 55дБ(A)).

scholarly journals INVESTIGATION AND MODELING OF TRANSPORT NOISE DEPENDENCE ON TRAFFIC SPEED AND IMPACT ON POPULATION ANNOYANCE

2022 ◽  
Vol 30 (1) ◽  
pp. 22-29
Author(s):  
Tomas Vilniškis ◽  
Andrej Naimušin ◽  
Tomas Januševičius
Keyword(s):  
Sleep Disorders ◽  
Health Effects ◽  
Noise Level ◽  
Negative Impact ◽  
Traffic Noise ◽  
Cardiovascular Effects ◽  
Vehicle Speed ◽  
Traffic Speed

Transport noise is a serious problem in cities and has a negative impact on both health and economics. In addition to the aforementioned unnoticed health effects, traffic noise has also been identified as one of the leading causes of sleep disorders, annoyance and negative cardiovascular effects. This research consists of three parts: part one involves onsite measurements of traffic noise in Trakai town; part two simulates traffic noise at different average vehicle speeds; part three assesses the number of people affected by traffic noise. The carried-out simulation has demonstrated that the noise level changes very slightly at different average vehicle speeds. It should be noticed that more noise is generated at average vehicle speed of 30 km/h rather than at 50 km/h. The assessment of the annoyance level has disclosed that an average vehicle speed of 30 km/h should cause the highest level of annoyance (highest – 26.8%).

scholarly journals ¿Es mayor la eficiencia productiva en los procesos de trabajo transformados? Una consideración acerca de las consecuencias de la transformación del proceso de trabajo en las condiciones laborales.

2016 ◽  
Vol 14 (23) ◽  
Author(s):  
David Fairris
Keyword(s):  
Working Conditions ◽  
Work Teams ◽  
Negative Impact ◽  
Labor Process ◽  
Just In Time ◽  
Total Quality ◽  
Negative Effects ◽  
Time Production ◽  
Organization Of Production ◽  
Rapid Transformation

Resumen:La organización de la producción ha venido sufriendo una rápida transformación desde hace casi dos décadas, con los cambios de los equipos de trabajo, las técnicas administrativas de calidad total y la producción justo a tiempo. Estas transformaciones han resultado en una mejora en la productividad en el trabajo, pero también en las repercusiones negativas sobre la vida de los trabajadores. Si las consecuencias positivas de la transformación del proceso de trabajo con respecto a la productividad están más que compensadas por las consecuencias negativas en las condiciones de trabajo, es posible que el movimiento de transformación del proceso de trabajo sea nocivo para la sociedad como un todo.Palabras clave : organización de la producción; equipos de trabajo; técnicas administrativas; calidad total; producción justo a tiempo; productividad. Abstract:The organization of production has undergone a rapid transformation for almost two decades, through changes in the work teams, the total-quality administrative techniques, and the just-in-time production. These changes have resulted in a better labor productivity, but also in negative effects on workers' lives. If positive consequences of the transformation of labor process with regard to productivity are more than compensated by the negative impact on working conditions, the labor process's change movement can be harmful to society as a whole.Key words: organization of production; work teams; administrative techniques; total quality; just-in-time production; productivity.

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