Approach for aggregate risk assessment of urban development zones

Industrial factories in urban development zones (UDZs) are a main source of both accident risk and aggregate risk. Aggregate risk is an important consideration in UDZs because of the potential for harm and serious disadvantages. The destruction of ecosystems and environmental disasters can occur when the pollutant is hidden and allowed to aggregate to high levels. The present paper reviews methods of aggregate risk assessment and proposes a program of aggregate risk assessment for UDZs.