Hazards of Aluminium welding fume Essay Example | Topics and Well Written Essays - 2500 words

Hazards of Aluminium weld fume - Essay Example galvanic weld was introduced in 1940s. Aluminium weld has been in prominence since 1970. There atomic number 18 several types of welding like Arc welding and Manual admixture glint is a common process where the crapers are exposed to the fumes. Carbon arc, Cold welding, Electron beam welding, Flux core arc welding, tout welding, Gas metal arc welding, Gas tungsten arc welding, Shielded metal arc welding, Plasma arc welding, Laser beam welding are the other welding processes where workers are exposed to metal fumes.The welding workers pay back a high icon of metal fumes and the exposure depends on place, confined space, shop class or open air. The metal fumes depend on not only the Aluminium simply also the process involved which may produce gases like acetylene, carbon monoxide, oxides of nitrogen , ozone, phosgene and tungsten. The metal fumes primarily enter the human system by inhalation route namely Respiration.. The deposi tion of these inhaled bimetallic particles is influenced by its physical and chemical properties and a mixed bag of host factors. In the lungs, these particles produce a variety of reactions depending on the concentration, duration of the exposure of the particles, and degree of exposure. All Metallic particles greater than 10 are deposited on the Mucous membrane in the nose and pharynx. Particles between 3m and 10 m are deposited throughout the windpipe of the lungs. Particles less than 3m are deposited in the alveoli and cause serious hazards. These particles have a fair chance of organism carried into the blood stream and cause Hepatotoxicity and Nephrotoxicity.Health Hazards of Aluminium fumes Hazards of Aluminium fumes have been advantageously documented in various scientific journals. The health hazard assessment is done by taste and analysis. Sampling has been well prescribed by the Draft British Standard (DD54) for breathing zone and flat coat samples. Chemical analysis techniques for milligram amounts of fume obtained are outlined in DD54 part I.(Moreton,1982)Aluminium work related Asthma has been established by characteristic patterns of repeated peak flow measurements supported by changes in methacholine responsiveness in workers with work related asthma (Konyerud, 1994).A recent study by keith Harrison of the Queens land Fertility group, Australia has proved the testicular toxicity of such Chemicals in male workers.Studies have also proved that exposure of workers to these metal fumes aged between 20-64, admitted to 11 hospitals in England during the result between 1996-1999, caused health hazards and is a classic case of occupational hazard of metal fume exposure (Palmer, 2003). Further studies on 27 welders with long-term exposure to these metal fumes revealed a reversible summation in the risk of Pneumonia. In the sputum, cell counts, soluble levels of the metal, levels of Interleukin-8, tumour necrosis factor-, myeloperoxidase, metallopr oteinase -9, Immunoglobulin (Ig)A, 2-macroglobulin and unsaturated metal binding capacity were analyzed and in the blood samples, evidence of neutrophil activation and IgG pneumococcal antibodies were analyzed. The studies concluded that the local inflammatory response was affected by chronic exposure (Palmer,2006). All welding workers thus, are exposed to acute or chronic respiratory disease. Welding fumes cause