Article

Evaluation of occupational hazards in foundries.

Occupational Health Department, High Institute of Public Health, Alexandria University.
The Journal of the Egyptian Public Health Association 02/2005; 80(3-4):433-62.
Source: PubMed

ABSTRACT The working environment of foundries is hazardous and characterized by multiple simultaneous chemical, physical and mechanical hazards exposure, which would lead to injuries of foundry workers. The aim of the present work is to evaluate occupational hazards in four foundries, two in Alexandria: El Nasr and Ramsis, and two in Behira: Misr Spinning and Weaving and Misr Rayon companies. Levels of total and respirable dust, free silica % in total dust and lead concentration in total and respirable dust; NO2, SO2 and CO concentrations; noise and heat stress levels have been determined in the present work. Occupational injuries data were analyzed in a three years period from 1998 to 2000. The results of the present work revealed; 1. The levels of total dust and respirable dust exceeded the threshold limit values at knockout and cleaning operations at El Nasr Company. 2. Free silica percentage exceeded permissible levels in all operations except pouring in El Nasr Company. 3. CO levels in Misr Spinning and Weaving Company were higher than threshold levels. 4. Noise levels in knockout and cleaning operations at the four companies were exceeding the threshold limit values. 5. Heat stress levels in melting and pouring operations in El Nasr and in pouring operation in Ramsis Company were higher than the maximum permissible levels. 6. The age group 31-40 years has recorded the highest average incidence rate of injuries of age groups (P<0.01). 7. Lower extremities and higher extremities have recorded the highest average incidence rate in the four companies (P<0.001-P<0.01 respectively). 8. Transportation and lifting was the main cause of injury in the four companies (P<0.05). 9. Faulty action and striking against was the main mean of injury in the four companies (P<0.01). 10. Ramsis Company has the highest average incidence rate in almost all injuries parameters and indices (frequency rate and severity rate) (P<0.05-P<0.001). The present work is a massive survey, which highlights the occupational hazards in Egyptian foundries.

0 Bookmarks
 · 
182 Views
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study was to assess to which extent modernisation of an aluminium production complex reduced occupational noise hazard for jobs with the highest potential of exposure. Periodical measurements of noise level were taken at the same workplaces using the same method, before and after modernisation of all plants. The results were compared with the recommended standard. After modernisation, the noise was significantly reduced in all sections of all plants. The greatest reduction was measured in the foundry. After modernisation, the portion of workplaces with excessive noise level dropped significantly (chisquare=21.315; p<0.0001) from 78.4% to 13%. Noise remained a problem in ingot casting and dross skimming section. In the anode plant, noise remained a problem in the green mill section where noise intensities generated by mills and vibrocompactors varied from 95 dB(A) to 102 dB(A). In the electrolysis plant, the portion of workplaces with extensive noise dropped from 77.8% to 39.3% after modernisation (p=0.0019). Noise remains to be a problem at the anode covering section where levels rise up to 100 dB(A). The modernisation of the factory has considerably reduced the noise level in the working environment of all plants, but it can not be reduced completely.
    Archives of Industrial Hygiene and Toxicology 09/2009; 60(3):343-8. · 0.67 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Few intervention studies aimed at preventing occupational injuries (OI) are available, particularly in the foundry sector. Evaluation of effectiveness of an intervention to prevent OI was carried out in two foundries (cast-iron = A, non-ferrous = B). A multifaceted intervention was developed by a team composed of occupational physician, safety personnel and workers' representatives. Intervention focused on safety procedures, education, health surveillance (HS), fitness for work and first aid. Mandatorily registered OI data were collected. Primary outcome was reduction in injury rates. Before-after, pre-peri-post and interrupted time series (ITS) analyses were performed. Secondary outcomes mainly regarded re-injury rates and lost workdays (LW) reduction, access to HS, implementation of good practices and insurance litigation costs. In 1997-2009, 556 and 97 OI occurred in A and B, accounting for 11,597 and 2,567 LW, respectively. A significant (P < 0.01) decrease in OI incidence (-57% in A and -51% in B) and frequency (-56% in A and -46% in B) was shown. ITS analysis displayed a significant (P < 0.01) long-term decreasing trend for incidence (-0.29), frequency (-0.35) and severity (-0.55) rates in foundry B. Upper and lower extremity, eye, hand and head injuries were reduced. HS allowed focused human factor and fitness for work evaluation. Positive changes in safety culture and procedures were obtained. The intervention showed effectiveness in reducing OI rates and in improving quantitative and qualitative outcomes in two representative foundries. Challenges and limitations of interventions to assess effectiveness in preventing OI were evaluated and solutions applied.
    International Archives of Occupational and Environmental Health 04/2011; 84(8):867-76. · 2.10 Impact Factor

Full-text (2 Sources)

View
64 Downloads
Available from
Jun 4, 2014