Cutting Fluids Usage and Impacts in Metal Workshops in Ibadan, Southwestern Nigeria

Abstract

This paper presents a report on cutting fluids utilization and its impacts on workers in machining workshops in Ibadan, Nigeria. The major users of cutting fluids and their workshops were identified. It was found that there are 103 operating metal workshops in Ibadan and these workshops are located within seven local government areas of the city. Out of the total number, 85 are in fabrication, 39 are in crankshaft operations and 32 are engaged in block boring operations. The type and consumption of cutting fluids, coolant delivery techniques, length of use before disposal, disposal methods, and monitoring maintenance were studied. The results indicated that the most used cutting fluid is soluble oil with average total consumption of 402 litres monthly. The pouring of spent cutting fluids on the ground is the most adopted disposal method. Research on occupation exposures to cutting fluids has suggested that machine operators in metal cutting are at high risk of developing cancer, allergenic disorders, and lung diseases. Results obtained also showed that less than 22% of machine operators were aware of occupational hazards. Few of the operators (23%) wore safety devices/clothing, and health and safety standards were neither practiced nor enforced.

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