Real-time prediction of extreme ambient carbon monoxide concentrations due to vehicular exhaust emissions using univariate linear stochastic models

Historical data of the time-series of carbon monoxide (CO) concentration were analysed using Box–Jenkins modelling approach. Univariate Linear Stochastic Models were developed to examine the degree of prediction possible for situations where only a limited data set, restricted only to the past record of pollutant data, is available. The developed models can be used to provide short-term, real-time forecast of extreme CO concentrations for an Air Quality Control Region, comprising a major traffic intersection in a Central Business District of Delhi City, India.