Factors Affecting Contact Dermatitis among Exposed Rust Oil Employees of Heat Treatment Manufacturing in the Industrial Estate, Chonburi Province

Abstract

This was the cross-sectional study aims to the factors affecting contact dermatitis among exposed rust oil employees of heat treatment manufacturing in the industrial estate Chonburi provincein 4factory by using 4 instruments including interview-questionnaire, skin Patch test, Assessing the exposure of rust oil in the workplace according to the standards of NIOSH (NIOSH Method 5026) and the work environment was measured. A total of 119 subjects, employees from heat treatment manufacturing rust oil that exposed with the oil at least 4 days/week, were assigned as the study group and comparing group were a 119 participants who work in normal office and don't get a chance to expose with rust oil.

Results of study revealed that the study subjects were mostly female with an average of age 28 (±5.03) years, average of work experience of 3 (±2.1) years. A history of the skin rash 38.6% Skin patch test on the employees to the test substance and the substance was undoubtedly one type of rust oil any employee found to have an allergic reaction more clearly. The average concentration of oil mist exposure was 0.35 (±0.1) mg/m3 not over standard (5 mg/m3) issued by the OSHA. Evaluation of the heat in the workplace was 31.13 (±1.2) degree Celsius not over standard (34 degree Celsius) issued by the Thai government. The OR for allergic contact dermatitis among exposure sonex was 3.960 (95% CI1.295 - 12.111) cool was 0.037 (95% CI0.003 - 0.537) type of wash solution was 3.557 (95% CI1.177 - 10.745) and hand washing time was 0.868 (95% CI0.765 - 0.984) The result of this study that exposure to rust oil is not a factor that affects the skin causing rashes and inflammation in a metal plating factory workers. However, the factors that affect the occurrence of skin rashes an exposure to chemicals using in everyday life, both in work and household chores, however, Safety departments should recommend working with chemicals, both at work and at home to know of dangers that affect the skin rash and should organize a campaign about washing hands properly.