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J. Agostinho Marques - One of the best experts on this subject based on the ideXlab platform.

  • One-week variation of cotton dust and endotoxin levels in a cotton mill. Relation with the daily variation of the expiratory flow rates.
    Acta medica portuguesa, 2004
    Co-Authors: J. C. Torres Costa, J. Alberto Ferreira, Eunice Castro, Marianela Vaz, Henrique Barros, J. Agostinho Marques
    Abstract:

    The prevalence of Respiratory Occupational Diseases in the textile industry depends on environmental factors such cotton dust (CTD) levels and gram negative bacteria endotoxin (EDX) contamination. Objective To assess the environmental conditions (CTD and EDX) during one week in a cotton mill with respect to FEV1 variation throughout the work shift. Population and methods 47 cotton mill workers (24F, 23M); average age: 42 +/- 11 years; average exposure to cotton dust: 22.5 +/- 9.4 years; Asthma: 15 (32%), Byssinosis: 11 (23%) and Asymptomatics: 21 (45%); a past history of Respiratory symptoms: 13.1 +/- 11.7 years. Clinical evaluation, skin prick tests, a metacholine challenge, lung function tests and a work-place evaluation were performed. FEV1 Shift-variation (Delta-Shift) = end-shift FEV1 - start-shift FEV1, was calculated during one week. CTD and EDX levels were measured daily for each work place throughout this week and everyday during different operation tasks (work, cleaning, maintenance). The average values of CTD and EDX were calculated according to the time spent on each of these tasks for every worker who was exposed. Results Great variability of the environment conditions was observed throughout the week with the highest levels of CTD and EDX on Friday, even in comparison with Monday (CTD = 1.01 +/- 0.31 mg/m3 vs 0.68 +/- 0.65 mg/m3; p Conclusion The environmental conditions that textile workers are exposed to, varies throughout the week and are associated with variations in flow rates and so lung function tests should be performed in a serial manner for the evaluation of Respiratory Occupational disease. The highest levels of EDX were recorded on Friday and this confirms the low reliability of the diagnostic criteria of byssinosis and points to the necessity of more objective measures.

J. C. Torres Costa - One of the best experts on this subject based on the ideXlab platform.

  • One-week variation of cotton dust and endotoxin levels in a cotton mill. Relation with the daily variation of the expiratory flow rates.
    Acta medica portuguesa, 2004
    Co-Authors: J. C. Torres Costa, J. Alberto Ferreira, Eunice Castro, Marianela Vaz, Henrique Barros, J. Agostinho Marques
    Abstract:

    The prevalence of Respiratory Occupational Diseases in the textile industry depends on environmental factors such cotton dust (CTD) levels and gram negative bacteria endotoxin (EDX) contamination. Objective To assess the environmental conditions (CTD and EDX) during one week in a cotton mill with respect to FEV1 variation throughout the work shift. Population and methods 47 cotton mill workers (24F, 23M); average age: 42 +/- 11 years; average exposure to cotton dust: 22.5 +/- 9.4 years; Asthma: 15 (32%), Byssinosis: 11 (23%) and Asymptomatics: 21 (45%); a past history of Respiratory symptoms: 13.1 +/- 11.7 years. Clinical evaluation, skin prick tests, a metacholine challenge, lung function tests and a work-place evaluation were performed. FEV1 Shift-variation (Delta-Shift) = end-shift FEV1 - start-shift FEV1, was calculated during one week. CTD and EDX levels were measured daily for each work place throughout this week and everyday during different operation tasks (work, cleaning, maintenance). The average values of CTD and EDX were calculated according to the time spent on each of these tasks for every worker who was exposed. Results Great variability of the environment conditions was observed throughout the week with the highest levels of CTD and EDX on Friday, even in comparison with Monday (CTD = 1.01 +/- 0.31 mg/m3 vs 0.68 +/- 0.65 mg/m3; p Conclusion The environmental conditions that textile workers are exposed to, varies throughout the week and are associated with variations in flow rates and so lung function tests should be performed in a serial manner for the evaluation of Respiratory Occupational disease. The highest levels of EDX were recorded on Friday and this confirms the low reliability of the diagnostic criteria of byssinosis and points to the necessity of more objective measures.

K Lyubomirova - One of the best experts on this subject based on the ideXlab platform.

  • Dynamics of the Occupational Respiratory Diseases in Bulgaria in the period 2009-2016
    European Journal of Public Health, 2019
    Co-Authors: N Tzacheva, M Tabanska-petkova, K Lyubomirova
    Abstract:

    Abstract Background The number of Occupational Respiratory Diseases has declined in recent years in Bulgaria. This is the result of technological advance, mechanization and automation of the processes generating high levels of dust in the work environment; adequate ventilation; personal protective equipment and, last but not least, the training of workers on preventive approaches. Methods The aim of the study is to find out the trends of registered Occupational Respiratory Diseases in Bulgaria in 2009-2016, according to official statistics. Analytical and statistical methods were used. Results In 2016, the number of Occupational Diseases (n = 33), registered in Bulgaria decreased by 71.55% compared to 2009 (n = 116). In 2009, the relative share of silicosis from Respiratory Occupational Diseases was 47.54% (n = 29), while in 2016 it grew to 64.29% (n = 9). Its share is also increasing as part of all Occupational Diseases in Bulgaria from 25% in 2009 to 27,27% in 2016. The registered cases of chronic rhinitis, nasopharyngitis and pharyngitis for the whole period are only 2, of professional asthma - 3; of chronic bronchitis - 5, less than cases of asbestosis - 9. In 2009, there were five reported cases of talcosis and the total number of cases of siderosis was 23 for the period of eight years. There are 4 cases of other pneumoconiosis and 2 of pneumoconiosis associated with tuberculosis, as well as 10 cases of toxic pulmonary fibrosis during the whole period. Conclusions It is worth noting the small number of Occupational Respiratory Diseases that could be caused by other factors not necessarily related to the work environment, such as chronic bronchitis and asthma, although they are significantly more frequent than those mandatory caused by Occupational hazards such as silicosis, asbestosis and toxic pulmonary fibrosis. This means that a significant proportion of these cases are counted as common chronic non-communicable Diseases with significant negative social consequences. Key messages The registered Occupational Respiratory Diseases decrease, but the relative share of those with strictly professional etiology, such as silicosis, is growing. A significant proportion of Occupational Respiratory Diseases are reported as chronic non-communicable Diseases.

Marianela Vaz - One of the best experts on this subject based on the ideXlab platform.

  • One-week variation of cotton dust and endotoxin levels in a cotton mill. Relation with the daily variation of the expiratory flow rates.
    Acta medica portuguesa, 2004
    Co-Authors: J. C. Torres Costa, J. Alberto Ferreira, Eunice Castro, Marianela Vaz, Henrique Barros, J. Agostinho Marques
    Abstract:

    The prevalence of Respiratory Occupational Diseases in the textile industry depends on environmental factors such cotton dust (CTD) levels and gram negative bacteria endotoxin (EDX) contamination. Objective To assess the environmental conditions (CTD and EDX) during one week in a cotton mill with respect to FEV1 variation throughout the work shift. Population and methods 47 cotton mill workers (24F, 23M); average age: 42 +/- 11 years; average exposure to cotton dust: 22.5 +/- 9.4 years; Asthma: 15 (32%), Byssinosis: 11 (23%) and Asymptomatics: 21 (45%); a past history of Respiratory symptoms: 13.1 +/- 11.7 years. Clinical evaluation, skin prick tests, a metacholine challenge, lung function tests and a work-place evaluation were performed. FEV1 Shift-variation (Delta-Shift) = end-shift FEV1 - start-shift FEV1, was calculated during one week. CTD and EDX levels were measured daily for each work place throughout this week and everyday during different operation tasks (work, cleaning, maintenance). The average values of CTD and EDX were calculated according to the time spent on each of these tasks for every worker who was exposed. Results Great variability of the environment conditions was observed throughout the week with the highest levels of CTD and EDX on Friday, even in comparison with Monday (CTD = 1.01 +/- 0.31 mg/m3 vs 0.68 +/- 0.65 mg/m3; p Conclusion The environmental conditions that textile workers are exposed to, varies throughout the week and are associated with variations in flow rates and so lung function tests should be performed in a serial manner for the evaluation of Respiratory Occupational disease. The highest levels of EDX were recorded on Friday and this confirms the low reliability of the diagnostic criteria of byssinosis and points to the necessity of more objective measures.

Henrique Barros - One of the best experts on this subject based on the ideXlab platform.

  • One-week variation of cotton dust and endotoxin levels in a cotton mill. Relation with the daily variation of the expiratory flow rates.
    Acta medica portuguesa, 2004
    Co-Authors: J. C. Torres Costa, J. Alberto Ferreira, Eunice Castro, Marianela Vaz, Henrique Barros, J. Agostinho Marques
    Abstract:

    The prevalence of Respiratory Occupational Diseases in the textile industry depends on environmental factors such cotton dust (CTD) levels and gram negative bacteria endotoxin (EDX) contamination. Objective To assess the environmental conditions (CTD and EDX) during one week in a cotton mill with respect to FEV1 variation throughout the work shift. Population and methods 47 cotton mill workers (24F, 23M); average age: 42 +/- 11 years; average exposure to cotton dust: 22.5 +/- 9.4 years; Asthma: 15 (32%), Byssinosis: 11 (23%) and Asymptomatics: 21 (45%); a past history of Respiratory symptoms: 13.1 +/- 11.7 years. Clinical evaluation, skin prick tests, a metacholine challenge, lung function tests and a work-place evaluation were performed. FEV1 Shift-variation (Delta-Shift) = end-shift FEV1 - start-shift FEV1, was calculated during one week. CTD and EDX levels were measured daily for each work place throughout this week and everyday during different operation tasks (work, cleaning, maintenance). The average values of CTD and EDX were calculated according to the time spent on each of these tasks for every worker who was exposed. Results Great variability of the environment conditions was observed throughout the week with the highest levels of CTD and EDX on Friday, even in comparison with Monday (CTD = 1.01 +/- 0.31 mg/m3 vs 0.68 +/- 0.65 mg/m3; p Conclusion The environmental conditions that textile workers are exposed to, varies throughout the week and are associated with variations in flow rates and so lung function tests should be performed in a serial manner for the evaluation of Respiratory Occupational disease. The highest levels of EDX were recorded on Friday and this confirms the low reliability of the diagnostic criteria of byssinosis and points to the necessity of more objective measures.