Synergistic effect of Carbon-monoxide, Noise, Smoking and Hypertension on Hearing of Steel Industry workers by Pragnya Prusty in SJO - Lupinepublishers
The synergistic effect of Carbon-monoxide, Noise, Smoking and
Hypertension on Hearing of Steel Industry workers in Odisha
has been examined in the present study. The objectives of the present
study were to assess the auditory effects of the combined
exposure of CO, Noise, Impact of smoking and Hypertension. 72 male
workers (smokers and non-smokers) from the steel industry
were examined, among which 62 were exposed to noise and CO (CEG-
Continuously Exposed Group) simultaneously and 10 workers
exposed to only noise (IEG-Intermittently Exposed Group). Biological
concentrations of CO in blood (COHb), hypertension was
measured considering smoking habits, the type of exposure (CO and noise
or noise only), the time of exposure, the level of noise &
age and audiometric tests were done to assess hearing ability. It has
been observed that the noise levels measured in SMS, RMS, MBF
s &Power plant sections is more than PEL i.e. 8 hours, TWA 90 dBA
specified in the state regulations. Workers were not using ear
protection devices. Study indicate the prevalence of hearing impairment
was significantly more in CEG (85.14%) as compared to IEG
(14.81%). The noise exposure and hearing impairment was found to be
significant (p< 0.05). Positive relation was found among the
level of noise, CO, Smoking & Hypertension (p< 0.05). The results
of present study indicate that hypertension & hearing impairment
are common problem among workers exposed to high levels of occupational
noise.
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