Chemoecological evaluation of a city agglomeration atmosphere is in th
e given case directed towards an application of mutually connected che
mometric operations. Their sequence is as follows: cluster analysis (C
A), principal component analysis (PCA), and multidimensional variance
and discriminant analysis (MVDA). The results of evaluation rely on a
two-year period of sampling of atmosphere and determination of some in
organic element pollutants in the gravitation dust sediments.