Sustainable Development Goal 13 (SDG 13) is about climate action and is one of 17 SDGs established by the United Nations General Assembly in 2015. The official mission statement of this goal is to "Take urgent action to combat climate change and its impacts and focusing on tackling climate change. According to the most recent report on Sustainable Development Goal 13, rising greenhouse gas concentrations, more frequent and extreme weather events, and rising sea levels have caused global temperatures to rise by 1.5°C above pre-industrial levels. To reduce emissions and prepare for climate change, immediate action is necessary. Comprehensive risk assessment and management require complete information. However, it is not always possible to gather information using a probabilistic or quantitative risk assessment (QRA). This study concentrated on the quantitative assessment of the risks that might result from a vinyl chloride monomer (VCM) release accidentally as a result of various activities during production and handling operations in petrochemical industries. ALOHA (Areal Locations of Hazardous Atmospheres) is employed to calculate the rate of release and total amount of Vinyl Chloride Monomer released from various potential leaking expected sources through a 1.0-inch orifice from a polymerization reactor in the PVC production and its effect on human health.