Technogenic pollution of soils by lead in Azov zone of Rostov region is studied. Elements of a database for catenae adjoining to linear sources of pollution are offered for the motorway traffic nearby 40 and more than 60 hundreds bus/day. Under the traffic more than 6 thousand bus/day the quantity of mobile forms of Pb in soil exceeds maximum concentration limit on distance of 0-40 m from a highway. Under the traffic about 40 hundreds bus/day the quantity of mobile forms of Pb in soil exceeds maximum concentration limit on distance of 0-20 m from a highway. For database formation about linear objects pollution with catena section are sufficient: the information on pollution of soils on key ecological profiles – transects; an information about pollution of soils in the most representative points truncated and simplified ecological profiles, put according to the data of distribution on key ecological profiles – transects; exponent empirical parities between distance from a highway and the content in soil of total and mobile forms of lead.
