In this paper was studied the attention properties of students aged 12—17 who are living in different climatic regions: the city of Surgut in the Khanty-Mansiysk Autonomous District and in rural areas of the middle Russia (Samara Region). The students of the first group live in the extreme climatic conditions of the North, aggravated by the adverse social and environmental factors of urbanization. The students of the second group live in a climatically and environmentally friendly area, with minimal impact of man-made pollution. The method used to estimate the attention of Bourdon, in the modification proposed by the Soviet psychologist P.A. Rudik. A comparative statistical analysis of the results obtained the attention properties of different groups of students are carried out. The dynamics of changes in the K, E, A indices during the test was estimated, the coefficients for the whole test and for each minute of the experiment were calculated too. Specific features of the development of student’s attention: identified according age, gender differences, differences in the development of indicators of attention of students in two different schools. Significant differences (P<0.001) in the distribution and productivity of attention were revealed, the coefficient of productivity of attention of students in Surgut was 1.15 times lower than that of their peers in the Samara region. According to new theory of chaos-selforganization it was calculated the quasiattractors volume V for three coordinates Zi (coefficient of attention concentration, attention quality, attention production). It was demonstrated the maximum volume V of quasiattractor for 14—15 year old pupils of Surgut. Very small volume V demonstrates pupils of 16—17 year of Samara district. Reducing the size of quasi-tractors demonstrates a decrease in variation range and represents a greater consolidation of the group in terms of studied parameters (large volumes of quasi-tractors in Surgut population can indicate a large variation in parameters of attention and performance).