scholarly journals Methodical approaches to assessing occupational health risks caused by exposure to 80-85 dB(A) noise

2020 ◽  
Vol 99 (8) ◽  
pp. 866-870
Author(s):  
Pavel Z. Shur ◽  
Nina V. Zaitseva ◽  
Vladimir A. Fokin ◽  
Svetlana V. Red’Ko
Keyword(s):  
Risk Assessment ◽  
Health Risks ◽  
Occupational Diseases ◽  
Test Group ◽  
Excess Noise ◽  
Physical Factors ◽  
Risk Levels ◽  
Managerial Decisions ◽  
Occupational Risks ◽  
Risks Assessment

Introduction. The contemporary industry has a peculiarity related to impacts exerted by physical factors (a leading one is exposure to noise being higher than safe levels fixed in hygienic standards). According to the Sanitary-epidemiologic requirements No. 2.2.4.3539-16, item 3.2.6, it is necessary to assess health risks for workers who are exposed to noise ranging from 80 to 85 dB(A) at their workplaces.The aim of the study was to develop methodical approaches to quantitative assessment of risks caused by exposure to excess noise and to test them at enterprises located in Perm.Data and methods. When developing methodical approaches, we revised research works that focused on impacts exerted by noise on workers’ bodies and probable responses caused by them as well as on procedures for occupational risks assessment. When testing our approaches, we applied hygienic assessment and epidemiologic analysis procedures, and statistically analyzed data on three enterprises located in Perm (334 workers; 210 out of them were exposed to noise varying from 80 to 85 dB(A) at their workplaces).Results. We suggested the following risk assessment algorithm: creating a test group and a reference one; determining any possible relations between exposure to noise and frequency of responses from the critical body organs and systems under the Guide No. 2.2.1766-03; calculating probability and risks of occupational diseases; comparing obtained results with unacceptable risk levels. We analyzed three enterprises located in Perm and didn’t reveal any occupational diseases. The risk of occupational pathology caused by exposure to noise being higher than MPL (80-85 dB(A)) amounted to 6.4∙10-3 at the enterprise No. 3Conclusion. Suggested approaches to quantitative health risk assessment allow assessing whether exposure to noise is acceptable or not, to meet requirements fixed in the Sanitary-epidemiologic requirements No. 2.2.4.3539-16, item 3.2.6. Assessment results can give grounds for further development of preventive activities and managerial decisions aimed at preserving workers’ health.

scholarly journals Assessing and predicting individual occupational risk and determining its exact categories using probabilistic methods

2021 ◽  
pp. 92-99
Author(s):  
V.A. Fokin ◽  
◽  
N.V. Zaitseva ◽  
P.Z. Shur ◽  
S.V. Redko ◽  
...  
Keyword(s):  
Health Risks ◽  
Oil And Gas ◽  
Test Group ◽  
Occupational Risk ◽  
Probabilistic Methods ◽  
Individual Risk ◽  
Gas Extraction ◽  
Risk Levels ◽  
Occupational Risks ◽  
Risk Categories

Existing approaches to occupational risk assessment more often involve evaluating its group levels and individual risks are assessed less frequently. These approaches provide deterministic risk assessment which doesn’t take into account uncertainty in risk categorizing when its values are close to boundaries between adjoining risks categories. It substantiates the necessity to assess occupational risk levels using probabilistic methods. Our research object was occupational risk and the basic subject was distribution of individual occupational risk levels among workers. Our test group was made up of oil and gas extraction operators exposed to noise equal to 80–85 dBA at their workplaces (173 people). Our control group included oil and gas extraction operators and engineering and technical personnel occupationally exposed to noise equal to 60–77.8 dBA (259 people). We performed a priori assessment of occupational health risks; accomplished epidemiologic analysis of a cause-effect relation between health disorders and work; calculated group occupational health risks; calculated and predicted individual occupational risk using mathematical modeling of dependence between probable negative responses and working conditions, age, and period of employment; determined risk categories more precisely using fuzzy sets by calculating the membership function. As a result, we established that proven individual risk levels were distributed unevenly (1.06•10-4–1.47•10-2) as per categories within a group characterized with a suspected average risk level. A category of proven individual risk levels was determined more precisely using fuzzy sets; after that distribution of probability of their membership was evaluated to detect that at the moment of the research a share of workers with their proven individual occupational risks falling into lower risk categories (p > 0.5) amounted to 89.6 %. We attempted to predict risks for the whole employment period given that working conditions remained the same and no prevention activities were provided. Our prediction revealed that individual occupational risks would remain unacceptable for all workers in the test group and would amount to 2.53•10-2–3.51•10-2; a risk category was also expected to become higher. In-dividual occupational risk would be categorized as average for most workers and as high for 23 % of them (p < 0.5).

scholarly journals Assessment of occupational risks of employees engaged in open-pit mining

2020 ◽  
Vol 177 ◽  
pp. 06006
Author(s):  
S.S. Timofeeva ◽  
I.V. Drozdova ◽  
A.A. Boboev
Keyword(s):  
Gold Mining ◽  
Work Conditions ◽  
Working Environment ◽  
Industrial Safety ◽  
Open Pit ◽  
Open Pit Mining ◽  
Physical Factors ◽  
Labor Protection ◽  
Occupational Risks ◽  
Risks Assessment

Currently, Uzbekistan is in the process of legislation modernization, primarily in matters of labor protection and industrial safety. Modernization consists in the transition from a previously existing ineffective system focused on compensation payments to a modern system based on preventive approaches, which imply continuous improvement of work conditions. The aim of this work is to analyze the legislation in the field of labor protection management, obliging employers to proceed to occupational risks assessment and their management, as well as the assessment of occupational risks for miners, working under the influence of harmful and dangerous production factors during gold mining in the quarry, and the development of measures to reduce them. The possible reasons for the discrepancy with the stated requirements of the physical factors of the miners working environment when performing work in gold mining quarries are analyzed. It has been established that professional risks for personnel are classified as high and medium and it is necessary to carry out organizational and technical measures to minimize them.

scholarly journals Methodical approaches to assessing categories of occupational risk predetermined by various health disorders among workers related to occupational and labor process factors

2020 ◽  
pp. 23-30
Author(s):  
N.V. Zaitseva ◽  
◽  
P.Z. Shur ◽  
V.B. Alekseev ◽  
A.A. Savochkina ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Occupational Risk ◽  
Labor Process ◽  
Risk Category ◽  
Risk Levels ◽  
Work Related ◽  
Occupational Risks ◽  
Numeric Characteristic ◽  
Health Disorders ◽  
Process Factors

If we want to assess occupational risks predetermined by various health disorders among workers related to occupational factors and labor process factors, we need to examine whether additional methods can be applied here; these methods should allow not only quantitative determination of occupational risk but also its adequate categorizing. A procedure for risk assessment based on fuzzy sets analysis can be considered and applied for the matter. Suggested methodical approaches to occupational risk assessment based on this procedure involve step-by-step accomplishment of the following stages: determining fuzzy figures corresponding to preset occupational risk levels; preparing initial data (numeric characteristics of occupational risk) for calculations; probabilistic assessment whether a numeric characteristic of occupational risk belongs to fuzzy numbers; and estimated probability of belonging of occupational risk numeric characteristic. A basic instrument for implementing the procedure is determining a membership function for a trapezoid fuzzy number that estimates whether determined risk assessments belong to a specific risk category. We suggested a scale for assessing occupational risk levels, starting from negligible (0–1∙10-4) to extremely high (3∙10-1–1) and corresponding boundaries of trapezoid fuzzy interval (four figures that define a trapezoid number). The procedure was tested in a situation when occupational diseases (sensorineural hearing loss), work-related diseases (arterial hypertension), and their combinations were revealed under exposure to noise equal to 85 dBA; the tests allowed establishing that membership functions were equal to 1 for all risk levels determined as per results obtained via epidemiologic research.

scholarly journals Application of Z-Numbers Based Approach to Project Risks Assessment

2019 ◽  
Vol 5 (2) ◽  
pp. 67 ◽  
Author(s):  
A.M. Nuriyev
Keyword(s):  
Risk Assessment ◽  
Risk Measure ◽  
Random Variable ◽  
Relevant Information ◽  
Uncertain Variable ◽  
Risk Levels ◽  
Decision Making Problem ◽  
Project Risks ◽  
Risks Assessment

At every phase of the project management process various risks originate owing to occurrence of uncertain events. In this research, we are analyzing potentialities of the Z-numbers in improving the quality of risk assessment. Risk assessment uses probability theory, theory of possibilities, fuzzy approach, Z-number based approach etc. Combined risk measure based on probability and consequence is calculated by applying the disjoint events probability formula or as a product of events. Reliability of relevant information unaccounted in this approach and this circumstance limits the descriptive power of the approach. Suggested by L. Zade a bi-component Z-number Z = (A, B) represents in a unified way a restriction on the values of the uncertain variable (A) and its certainty (B) and allows to take into account the reliability of information. Prediction identical to (High, Very Sure) can be formalized as a Z- evaluation “X is Z (A,B)”, where X is random variable of Risk Likelihood, A and B are fuzzy sets, describing soft constraints on a risk likelihood and a partial reliability, respectively. Usually, A and B are sense-based and in effect are imprecise.Z-number describes a probability of threat as: Likelihood =Z1(High,Very Sure),where A is expressed by linguistic terms High, Medium, Low, and B is expressed by terms Very Sure, Sure and so on. Similarly, Сonsequence measure is described as Сonsequence measure = Z2 (Low, Sure).Risk levels (Z12) is calculated as the product of the likelihood (Z1) and consequence measures (Z2).Effectiveness of the approach illustrated by examples. A general and computationally effective approach suggested to computation with Z-numbers allows using Z-information for the solving decision-making problem which can be utilized for risk factors estimation.. Application of the Z-number based approach for a project risks assessment increases adequacy of the risks representation due to better approximation of the combined effects

scholarly journals Methodical approaches to assessing categories of occupational risk predetermined by various health disorders among workers related to occupational and labor process factors

2020 ◽  
pp. 23-30
Author(s):  
N.V. Zaitseva ◽  
◽  
P.Z. Shur ◽  
V.B. Alekseev ◽  
A.A. Savochkina ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Occupational Risk ◽  
Labor Process ◽  
Risk Category ◽  
Risk Levels ◽  
Work Related ◽  
Occupational Risks ◽  
Numeric Characteristic ◽  
Health Disorders ◽  
Process Factors

If we want to assess occupational risks predetermined by various health disorders among workers related to occupational factors and labor process factors, we need to examine whether additional methods can be applied here; these methods should allow not only quantitative determination of occupational risk but also its adequate categorizing. A procedure for risk assessment based on fuzzy sets analysis can be considered and applied for the matter. Suggested methodical approaches to occupational risk assessment based on this procedure involve step-by-step accomplishment of the following stages: determining fuzzy figures corresponding to preset occupational risk levels; preparing initial data (numeric characteristics of occupational risk) for calculations; probabilistic assessment whether a numeric characteristic of occupational risk belongs to fuzzy numbers; and estimated probability of belonging of occupational risk numeric characteristic. A basic instrument for implementing the procedure is determining a membership function for a trapezoid fuzzy number that estimates whether determined risk assessments belong to a specific risk category. We suggested a scale for assessing occupational risk levels, starting from negligible (0–1∙10-4) to extremely high (3∙10-1–1) and corresponding boundaries of trapezoid fuzzy interval (four figures that define a trapezoid number). The procedure was tested in a situation when occupational diseases (sensorineural hearing loss), work-related diseases (arterial hypertension), and their combinations were revealed under exposure to noise equal to 85 dBA; the tests allowed establishing that membership functions were equal to 1 for all risk levels determined as per results obtained via epidemiologic research

Occupational health risk assessment at healthcare institutions: Developing a semi-quantitative risk method

2021 ◽  
pp. 1-14
Author(s):  
Mohammad Hossein Chalak ◽  
Ghasem Bahramiazar ◽  
Javad Rasaee ◽  
Reza Fahimi ◽  
Asghar Noran Anbardan ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Occupational Health ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Health Risks ◽  
Quantitative Method ◽  
Assessment Methods ◽  
Public Hospitals ◽  
Risk Levels

BACKGROUND: Environmental hazards in healthcare institutions affect the quality of patient care as well as personnel and patient safety. OBJECTIVE: The aim of this study was to develop and apply a semi-quantitative risk assessment method to calculate occupational health risk levels with regard to the sensitivities of healthcare institutions. METHODS: The present research was conducted in three phases. In phases 1 and 2, the model was developed using a review of different risk assessment methods, extracting expert opinions (N = 10) through semi-structured interviews, and using the fuzzy analytical hierarchy process (FAHP). In phase 3, in order to validate the proposed method, one of the five public hospitals was randomly selected and a case study comprising 6 sections was performed. RESULTS: A total of 43 health risks were identified and evaluated using the present method, 41.86% of which were at very high levels, 16.27% at high levels, 30.23% at substantial ones, 9.3% at medium and 2.32% at low levels. The highest health risks were found in paraclinical and operating room wards. CONCLUSION: To overcome the shortcomings of the proposed health risk assessment methods, a semi-quantitative method was used in the present study to more accurately calculate the risk levels in the healthcare institutions and also calculate the risk level of each hospital unit. The proposed semi-quantitative method can be used as a tool for assessing occupational health risks as a key element of risk management. In addition, by focusing on an appropriate framework for occupational health risk assessment, specialists in the organization will be able to take significant and effective steps to implement an efficient risk management system.

scholarly journals Application of Z-Numbers Based Approach to Project Risks Assessment

2019 ◽  
Vol 5 (2) ◽  
pp. 67 ◽  
Author(s):  
A.M. Nuriyev
Keyword(s):  
Risk Assessment ◽  
Risk Measure ◽  
Random Variable ◽  
Relevant Information ◽  
Uncertain Variable ◽  
Risk Levels ◽  
Decision Making Problem ◽  
Project Risks ◽  
Risks Assessment

At every phase of the project management process various risks originate owing to occurrence of uncertain events. In this research, we are analyzing potentialities of the Z-numbers in improving the quality of risk assessment. Risk assessment uses probability theory, theory of possibilities, fuzzy approach, Z-number based approach etc. Combined risk measure based on probability and consequence is calculated by applying the disjoint events probability formula or as a product of events. Reliability of relevant information unaccounted in this approach and this circumstance limits the descriptive power of the approach. Suggested by L. Zade a bi-component Z-number Z = (A, B) represents in a unified way a restriction on the values of the uncertain variable (A) and its certainty (B) and allows to take into account the reliability of information. Prediction identical to (High, Very Sure) can be formalized as a Z- evaluation “X is Z (A,B)”, where X is random variable of Risk Likelihood, A and B are fuzzy sets, describing soft constraints on a risk likelihood and a partial reliability, respectively. Usually, A and B are sense-based and in effect are imprecise.Z-number describes a probability of threat as: Likelihood =Z1(High,Very Sure),where A is expressed by linguistic terms High, Medium, Low, and B is expressed by terms Very Sure, Sure and so on. Similarly, Сonsequence measure is described as Сonsequence measure = Z2 (Low, Sure).Risk levels (Z12) is calculated as the product of the likelihood (Z1) and consequence measures (Z2).Effectiveness of the approach illustrated by examples. A general and computationally effective approach suggested to computation with Z-numbers allows using Z-information for the solving decision-making problem which can be utilized for risk factors estimation.. Application of the Z-number based approach for a project risks assessment increases adequacy of the risks representation due to better approximation of the combined effects

An Estimation of Endogenous Formaldehyde Exposure due to Consumption of Indonesian Opah Fish (Lampris guttatus) in Three Major Export Destination Countries

2019 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Umi Anissah ◽  
Ajeng Kurniasari Putri ◽  
Giri Rohmad Barokah
Keyword(s):  
Risk Assessment ◽  
Health Risks ◽  
Health Problem ◽  
International Market ◽  
Formaldehyde Content ◽  
Export Volume ◽  
Formaldehyde Exposure ◽  
Export Destination ◽  
Export Product ◽  
Over Time

The demand for Indonesian opah fish as an export product is increasing in the international market. Three countries (Malaysia, Mauritius, and Taiwan) recorded as the leading export destination of Indonesian opah fish. However, as the fish kept in a frozen state during export transportation, the endogenous formaldehyde may increase over time. This research presented the health risk assessment of population in the leading export destination countries that consumed opah fish from Indonesia. The study aimed to reveal the most potential export destination country that may accept an increasing volume of opah fish supply from Indonesia. The potency was determined from current export volume, the amount of endogenous formaldehyde content, and fish consumption at each country. The data were calculated with @Risk®7.0 software. The results showed opah fish consumed by Malaysian can be categorized as safe. Increasing the number of opah fish imported by Malaysian as much as six times, 12 times, 18 times, 27 and 36 times relatively does not cause health risks related to the presence of its endogenous formaldehyde. Moreover, opah fish consumed by Taiwanese is also safe, but with increasing the number of consumptions by more than 26 times is suspected to be potentially causing a health problem. However, opah fish consumed in Mauritius was categorized as unsafe and potentially caused health risks. Based on these results, Indonesia may consider to increase the opah fish export to Malaysia and Taiwan in the future.

Exploration Health Risks: Probabalistic Risk Assessment

2006 ◽  
Author(s):  
Jennifer L. Rhatigan ◽  
John B. Charles ◽  
J. Michelle Edwards
Keyword(s):  
Risk Assessment ◽  
Health Risks

The prospects of occupational risk management during reforms of regulatory legislation basis

2019 ◽  
pp. 39-44 ◽  
Author(s):  
Vadim B. Alekseev ◽  
Nina V. Zaitseva ◽  
Pavel Z. Shur
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Social Insurance ◽  
Well Being ◽  
Occupational Risk ◽  
Risk Level ◽  
Federal Law ◽  
Work Safety ◽  
Risk Levels ◽  
Legal Principles

Despite wide legislation basis of regulating relations in work safety and workers’ health, one third of workplaces demonstrate exceeded allowable normal levels of workers’ exposure to occupational hazards and present occupational risk for health disorders.In accordance to national legislation acts, evaluation should cover factors of occupational environment and working process, and occupational risk is understood in context of mandatory social insurance. This approach has been formed due to mostly compensatory trend in legal principles of work safety in Russia by now. Implementation of new preventive concept of work safety, based on idea of risk management for workers, necessitates development of legal acts that regulate requirements to evaluation of occupational risk and its reports with consideration of changes in Federal Law on 30 March 1999 №52 FZ “On sanitary epidemiologic well-being of population”.Those acts can include Sanitary Rules and Regulations “Evaluation of occupational risk for workers’ health”, that will contain main principles of risk assessment, requirements to risk assessment, including its characteristics which can serve as a basis of categorizing the risk levels with acceptability.To standardize requirements for informing a worker on the occupational risk, the expediency is specification of sanitary rules “Notifying a worker on occupational risk”. These rules should contain requirements: to a source of data on occupational risk level at workplace, to informational content and to ways of notifying the worker. Specification and implementation of the stated documents enable to fulfil legal requirements completely on work safety — that will provide preservation and increase of efficiency in using work resources.

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