smog index

in atmospheric chemistry
A mathematical correlation between @S05716@ and meteorological and/or pollutant concentrations associated with it. These are qualitative indices which are sometimes used in some urban communities to predict the degree of the @A00195@ which is expected for the coming @D01527@.
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2214 [Terms] [Paper]