An assessment of the permissible exposure limit for industrial complex noise exposure

2017 ◽  
Vol 141 (5) ◽  
pp. 3732-3732
Author(s):  
Wei Qiu ◽  
Meibian Zhang ◽  
Jianmin Jiang
Keyword(s):  
Noise Exposure ◽  
Industrial Complex ◽  
Permissible Exposure Limit ◽  
Exposure Limit

scholarly journals The exposure of working environment noise in the agricultural service workplaces

2009 ◽  
Vol 55 (No. 2) ◽  
pp. 69-75 ◽  
Author(s):  
M. Šístková ◽  
A. Peterka
Keyword(s):  
Human Health ◽  
Sound Pressure Level ◽  
Sound Pressure ◽  
Pressure Level ◽  
Working Environment ◽  
Service Workers ◽  
Permissible Exposure Limit ◽  
Noise Characteristics ◽  
Exposure Limit ◽  
Environment Noise

The noise belongs to the leading harmful factors which pollute the environment and negatively influences human health. An overview measurement concerning the noise characteristics has been done in agricultural service workplaces. The sound pressure level has been measured and the length of the workers exposition has been elicited in each workplace. The obtained data has proved that some agricultural service workers have been exposed to a noise above the permissible exposure limit.

scholarly journals The study of the effectiveness of coagulants and white sludge in the process of dephosphotation of municipal wastewater

2020 ◽  
Vol 193 ◽  
pp. 02001
Author(s):  
Tamara Gorbacheva ◽  
Dmitriy Mayorov ◽  
Yuri Velyaev ◽  
Yar Zar Htun
Keyword(s):  
Metal Oxide ◽  
Municipal Wastewater ◽  
Permissible Exposure Limit ◽  
Urban Sewage ◽  
Exposure Limit ◽  
Degree Of Purification

The results of the test coagulation of clarified wastewater of urban sewage facilities are presented in this work. A dose of aluminum and iron-containing coagulants in terms of metal oxide (Me2O3 ) was used as a parameter for comparison of the efficiency of reagent removal of phosphorus from wastewater. It was shown that the uses of any of the selected coagulants make it possible to bring the degree of purification of municipal effluents to the requirements of fishery co-op permissible exposure limit at the stage of simultaneous subsidence, while the best efficiency results are obtained for an aluminum oxychloride coagulant.

Permissible Exposure Limit (PEL)

2016 ◽  
Author(s):  
John H. Duffus ◽  
Monica Nordberg ◽  
Douglas M. Templeton
Keyword(s):  
Permissible Exposure Limit ◽  
Exposure Limit

scholarly journals Pulmonary Evaluation of Permissible Exposure Limit of Syntroleum S-8 Synthetic Jet Fuel in Mice

2009 ◽  
Vol 109 (2) ◽  
pp. 312-320 ◽  
Author(s):  
Simon S. Wong ◽  
Alana Thomas ◽  
Brian Barbaris ◽  
R. Clark Lantz ◽  
Mark L. Witten
Keyword(s):  
Jet Fuel ◽  
Synthetic Jet ◽  
Permissible Exposure Limit ◽  
Exposure Limit

scholarly journals Noise Pollution and Its Correlations with Occupational Noise-Induced Hearing Loss in Cement Plants in Vietnam

2021 ◽  
Vol 18 (8) ◽  
pp. 4229
Author(s):  
Tinh Thai ◽  
Petr Kučera ◽  
Ales Bernatik
Keyword(s):  
Hearing Loss ◽  
Noise Level ◽  
Noise Exposure ◽  
Noise Pollution ◽  
Noise Induced Hearing Loss ◽  
Exposure Limit ◽  
Global Issue ◽  
Exposed Workers ◽  
Almost All ◽  
Cement Grinding

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).

scholarly journals Occupational Exposure on Board Fishing Vessels: Risk Assessments of Biomechanical Overload, Noise and Vibrations among Worker on Fishing Vessels in Southern Italy

Environments ◽  
2019 ◽  
Vol 6 (12) ◽  
pp. 127 ◽  
Author(s):  
Francesca Mansi ◽  
Enza Sabrina Silvana Cannone ◽  
Antonio Caputi ◽  
Luigi De Maria ◽  
Leonardo Lella ◽  
...  
Keyword(s):  
Noise Exposure ◽  
Southern Italy ◽  
Whole Body ◽  
Work Related ◽  
Limit Value ◽  
Fishing Vessels ◽  
Exposure Limit ◽  
High Prevalence ◽  
Measurement Tools ◽  
Whole Body Vibrations

Sea fishing is one of the sectors with the highest risk of illness and work-related accidents. The purpose of the study is to evaluate the exposure of fishing workers to three major risks: biomechanical overload, noise, and whole-body vibrations. We used common methods and measurement tools in the field: observational video analysis, questionnaires, and direct measurement. Noise and vibrations levels were measured aboard five boats belonging to the main fishing communities of Southern Italy. The random sample consisted of 310 workers, of whom 108 agreed to complete a questionnaire to collect data on the perception of occupational risk and self-perception of health conditions. We found that fishermen had a high prevalence of osteoarticular pathologies (42%) and that the biomechanical overload risk is mainly related to handling manual loads. Furthermore, the results indicate that the levels of weekly noise exposure exceed the exposure limit value of 87 decibel A (dBA) for fishing workers, and that the most noisiest area is the engine room. Exposure levels to whole-body vibrations were below <0.5 m/s2. Knowledge on occupational hazards and health effects in the fisheries sector should be used to develop ship technology, raise awareness of the correct use of personal protective equipment, and improve health surveillance of these workers.

scholarly journals Acoustic Environment and Noise Exposure in Fitness Halls

2020 ◽  
Vol 10 (18) ◽  
pp. 6349
Author(s):  
Omaimah Ali Al-Arja
Keyword(s):  
Noise Level ◽  
Noise Exposure ◽  
Subjective Rating ◽  
Reverberation Time ◽  
Noise Levels ◽  
Acoustic Environment ◽  
Exposure Limit ◽  
Raising Awareness ◽  
Measurement Results ◽  
T Values

People seek health and leisure in gyms and fitness halls. In this study, interior acoustics including reverberation time (T) and activity noise levels were studied in 20 indoor sports and gymnasium (IS & G) halls in Amman, Jordan. Interviews and questionnaires were also applied to assess the subjective comfort levels of the acoustic environment in these IS & G halls. The measured values were correlated with the subjective evaluations. The range of measured T values was 1.09–5.38 s. The activity noise level, which was measured with LA,eq over 50 min of activity, ranged between 80.0 and 110.0 dB(A). The average personal noise exposure for instructors was 92.6 dB(A), ranging from 81.0 to 108.0 dB(A), whereas 90% of the measurement results were above the occupational exposure limit (OEL) of 85.0 dB(A), and 40% of instructors were potentially exposed to excessive noise levels. The subjective rating of listening conditions correlated significantly with the reverberation time rather than noise level (p < 0.01). In conclusion, the results from this study show that noise levels generated in the studied IS & G halls present a possible workplace noise hazard. Raising awareness of the risk of hearing problems among instructors working in IS & G halls is highly recommended.

Questionnaire-based algorithm for assessing occupational noise exposure of construction workers

2017 ◽  
Vol 75 (3) ◽  
pp. 237-242 ◽  
Author(s):  
Kate Lewkowski ◽  
Kahlia McCausland ◽  
Jane S Heyworth ◽  
Ian W Li ◽  
Warwick Williams ◽  
...  
Keyword(s):  
Noise Exposure ◽  
Characteristic Curve ◽  
Health And Safety ◽  
Population Level ◽  
Epidemiological Studies ◽  
Construction Workers ◽  
Occupational Noise ◽  
Occupational Noise Exposure ◽  
Exposure Limit ◽  
Working Shift

ObjectivesOccupational noise exposure is a major cause of hearing loss worldwide. In order to inform preventative strategies, we need to further understand at a population level which workers are most at risk.MethodsWe have developed a new questionnaire-based algorithm that evaluates an individual worker’s noise exposure. The questionnaire and supporting algorithms are embedded into the existing software platform, OccIDEAS. Based on the tasks performed by a worker during their most recent working shift and using a library of task-based noise exposure levels, OccIDEAS estimates whether a worker has exceeded the full-shift workplace noise exposure limit (LAeq,8h≥85 dBA). We evaluated the validity of the system in a sample of 100 construction workers. Each worker wore a dosimeter for a full working shift and was then interviewed using the OccIDEAS software.ResultsThe area under the receiver operating characteristic curve was 0.81 (95% CI 0.72 to 0.90) indicating that the ability of OccIDEAS to identify construction workers with an LAeq,8h≥85 dBA was excellent.ConclusionThis validated noise questionnaire may be useful in epidemiological studies and for workplace health and safety applications.

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