Safety risk assessment in a drinking water treatment plant using the NTP 330 method

Abstract

In Ecuador, the lack of attention to occupational safety in small and medium-sized enterprises, which constitute 98% of the total, has increased workplace accidents. To assess this situation, a Checklist based on the Guide of the National Institute for Occupational Safety and Health (INSHT) of the Ministry of Labor was applied. The methodology was then adapted to evaluate specific working conditions in SMEs and the NTP 330 method was used, which considers criteria such as efficiency, exposure, probability, and consequences to determine the risk level. Fifty-eight hazards were identified, including falls of people from different levels, falling objects due to collapse, and blows or cuts caused by tools, each with an incidence of 10%. The distribution area presented the highest number of risks (15), and the high-risk level predominated. The application of the method allowed for a comprehensive assessment, highlighting the urgent need for preventive measures.