Determination of baseline data on respirable dust concentration for safety and health enhancement in selected small and medium industries in Johor
Air pollution has become the major global concern regarding to the harmful health effect, increased morbidity, and mortality especially for particulate air pollutant. However, there is still very limited study that discussed the effects of exposures of dust and particle matters in industry at Mal...
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| Format: | Thesis |
| Language: | English English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1626/1/24p%20NUUR%20AZREEN%20PAIMAN.pdf http://eprints.uthm.edu.my/1626/2/NUUR%20AZREEN%20PAIMAN%20WATERMARK.pdf http://eprints.uthm.edu.my/1626/ |
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| Summary: | Air pollution has become the major global concern regarding to the harmful
health effect, increased morbidity, and mortality especially for particulate air
pollutant. However, there is still very limited study that discussed the effects
of exposures of dust and particle matters in industry at Malaysia especially
respirable dust. This study was focus on the respirable dust concentration and
their respirable health symptoms in selected industry. Three (3) case studies had
been done as data collection. For each case, several sampling location was chosen
for sampling station and several workers was randomly choosen as respondents
in assessing the exposure of respirable dust by using personal environmental
monitoring (PEM) method. Series of a direct reading measurement for area
sampling of respirable dust (PM10), carbon dioxide (CO2), temperature and
relative humidity were also conducted at the same time. Questionnaires were
administrated in purposed to determine the respiratory health problem symptoms
and supported by lung function test by using spirometer with a standard method
of sampling. The result of the study showed most of the workers in paper
based mill were exposed to respirable dust when the Time Weightage Average
(TWA) result was above the permissible exposure limit which is 5 mg/m3 and
3 mg/m3
from Occupational Safety and Health Administration (OSHA) and
American Conference of Governmental Industrial Hygienists (ACGIH) standard
respectively. From the survey feedbacks, out of 30 symptoms, there are only
five symptoms that are significant with the year of exposure. For pulmonary
lung function test, there were 81.81% (paper based mill), 53.33% (palm oil
mill) and 65.63% for automotive plant were in normal spiro status respectively.
Significant reduction was observed in the mean values of Force Vital Capacity
(FVC), Forced Expiratory Volume in one second (FEV1), and Force Expiratory
Ratio (FEV1/FVC) among workers. It is concluded that lung function among
exposure workers is impaired and stratification of result shows a respiratory health
symptoms effects of years to respirable dust exposure on lung function. |
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