A Prioritization Approach for Noise Risk Management in a Petrochemical Complex

Nassiri, Parvin; Dehghan, Somayeh Farhang; Monazzam, Mohammad Reza

doi:10.1539/joh.12-0237-oa

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Exposure to noise except hearing loss as the most characteristic effect causes other negative health consequences. Generally, the biological effects of noise are divided into two parts: auditory and nonauditory ( 13 – 11 ). Nonauditory effects of noise include physiological, interference with activities, and psychological.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Occupational Noise Exposure on Blood and Biochemical Parameters: A Case Study of an Insulator Manufacturer in Iran

Mohammadi

Alimohammadi

et al. 2016

Electron physician

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IntroductionOccupational noise is among the most critical occupational hazards, which, in addition to hearing loss, can cause other adverse consequences on an individual’s physical and mental health. Long-term exposure to noise can affect blood and biochemical parameters and subsequently lead to increased risk of cardiovascular disease. This study investigated the effect of occupational exposure to noise on blood and biochemical parameters of workers in an insulator manufacturing plant.MethodsThis case-control study was conducted on workers in the production section (49 people as a case group) and the administrative staff (10 people as a control group) in one insulator manufacturing plant from 2010 to 2014. To assess individual exposure of workers to noise, the noise dosimeter model TES-1355 was used. Noise dosimetry testing was done based on the exposure pattern of workers to noise in compliance with the Iranian national standard (the criterion level of 85 dBA and the exchange rate of Q = 3 dBA). Blood parameters such as blood glucose, cholesterol, red blood cells (RBC), white blood cells (WBC), hemoglobin (Hb), and hematocrit (Hct) were studied in production workers (case) and administrative staff (control) over five consecutive years. The data were analyzed by software (SPSS-22) using the t-test, Mann-Whitney test, Fisher exact test, and Greenhouse-Geisser test.ResultsNo significant difference was found among the demographic data of the two groups (p > 0.05). Average of glucose and cholesterol levels in the two groups was statistically significant (p < 0.05) and blood glucose levels in the case group significantly reduced over time and cholesterol increased (p < 0.001). Mean difference of RBC number, WBC number, and serum levels of Hb and Hct was statistically significant between the two groups (p < 0.05). In addition, these hematological parameters increased among workers during these years.ConclusionOccupational exposure to noise may have a significant effect on an individual’s blood parameters, which will cause harmful effects on worker health. Therefore, industrialists must take preventive measures in the field of noise control.

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Section: Introductionmentioning

confidence: 99%

The Effect of Occupational Noise Exposure on Blood and Biochemical Parameters: A Case Study of an Insulator Manufacturer in Iran

Mohammadi

Alimohammadi

et al. 2016

Electron physician

View full text Add to dashboard Cite

show abstract

“…The dosimeter microphone was placed 10 to 30 cm away from the workers’ ear and attached to their collars. 31 According to the standard ISO 9612, the equivalent level (Leq) of received dose was calculated using Equation 1 and the eight-hour equivalent level was calculated using Equation 2. 32…”

Section: Measurement Of Noise Exposure Levelmentioning

confidence: 99%