Amenu, Mulugeta (2010) Prevalence of Respiratory Diseases among Automobile Spray Painters in Selected Auto Body Shops in Addis Ababa. Masters thesis, Addis Ababa University.
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Abstract
Occupational diseases are hard to track for many reasons and usually were underreported. It is because they do not have unique pathologies and their long latency period. The automotive refinishing industry is a common setting of occupational exposure to isocyanates. The goal of this study was to examine the prevalence of chronic respiratory symptoms in automobile spray painting workers due to long term exposure to aerosols in the working environment and to compare these results with changes in spirometric parameters. And also the study aims to assess the knowledge, attitude, and practice (KAP) of the workers to automobile spray painting related respiratory diseases. A modified questionnaire on respiratory symptoms from the British Medical Research Council was used to take the data about respiratory symptoms. Spirometric parameters were determined using a Mijnhardt spirometre, Vicatest-P1. Aerosol measurements was done using MIE DataRAM 4 (for data-logging Real-time Aerosol Monitor 4), model DR- 4000 which is a technologically advanced instrument (embodies U.S. patent No. 6,055,052) designed to measure the concentration of airborne particulate matter (liquid or solid), as well as mean particle size, air temperature and humidity, providing direct and continuous readout as well as electronic recording of the information. The study included 41 automobile painting workers from eight auto body workshops in Addis Ababa, Ethiopia. All subjects were men, but they differed in age and years of service. The group used for comparison consisted of 30 male office workers in Addis Ababa who had never been exposed to this kind of air pollution before. All the subjects were non-smokers. Automobile painters mostly complained of cough and wheezing associated with the workplace (29.3%, 53.7%) and also phlegm and breathlessness (24.4%, 21.9%) respectively. This indicated that the prevalence of chronic respiratory symptoms reported by the examined automobile spray painters was quite high. Results of lung function measurements were recorded on a decade age group. Comparing the lung function measurement results for FVC and FEV1 across all age categories of the study subjects, controls have greater lung function measurement results which also indicated statistically significant difference ( p-value <0.05). The maximum mean mass concentration of aerosol in the auto body workshops was 110.10 mg/m3 with the respective particle size of 2.88μm. The lower mean mass concentration of aerosol in the auto body workshops was 5.47mg/m3 with the respective particle size of 2.36μm. The mean particle size of aerosol samples taken from the eight auto body work shops were below 4μm with the lowest and the highest values of 2.02μm and 3.56μm respectively. These are the particles most likely to cause adverse health effects. About 70.7% of the painters suggest using only personal protective devices as a protective measure from exposure of dangerous chemicals during painting; 17.1% of the painters propose using PPD and drinking milk as a protective measure where as 12.2% said provision of PPE and using painting booth as a protective measure. The results of the study confirmed that there was a direct relationship between exposure to aerosol concentration in the auto body workshops and decline in lung function measurements of FVC and FEV1.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Respiratory disease symptoms, Automobile spray painters, aerosol, Knowledge Attitude Practice, FVC, FEV1. |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences H Social Sciences > H Social Sciences (General) H Social Sciences > HM Sociology R Medicine > R Medicine (General) R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine |
| Divisions: | Africana |
| Depositing User: | Selom Ghislain |
| Date Deposited: | 24 May 2018 12:15 |
| Last Modified: | 24 May 2018 12:15 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/4080 |
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