Irkutsk Region Research Articles

Региональные аспекты современной государственной политики в сфере среднего профессионального образования (на примере Иркутской области)

The issues of implementation of the state policy in the field of secondary vocational education at the regional level are considered. The changes in the educational priorities of Russian youth concerned the growing popularity among young people of secondary vocational education are described. The phenomenon of the growing popularity of vocational education in different countries is described. The so-called “effect of vocational education” is analyzed, which manifests itself in removing obstacles in the process of transition of young people from educational process to the labor market, finding effective mechanisms for this transition. It is revealed that the issues of transformation of secondary vocational education are actively studied by Russian scientists. The activity of scientific centers (the Centre for Vocational Education and Skills Development of the National Research University Higher School of Economics and the Federal Institute for Educational Development of the Russian Academy of National Economy and Public Administration) is described. In the article the main directions of the federal policy in the field of upper-grade vocational education investigating this issue are analyzed. Separate stages in the implementation of this policy are highlighted. It`s considered the specifics of the implementation of federal policy at the regional level. The implementation of the regional policy in the field of upper-grade vocational education was described using the example of the Irkutsk region.

О пребывании депутатов социал-демократической фракции II Государственной Думы в сибирской ссылке

The reader is offered a description of the life and activities, including political ones, of the exiled deputies of the Social Democratic faction of the II State Duma of the Russian Empire. The article is based on the materials of the National Archive of the Irkutsk Region, as well as memoirs and reference literature published by the All-Union Society of Political Prisoners and Exiled Settlers. In the course of the research, the basic information characterizing the stay of the deputies of the “second-thinkers” in Siberian exile was identified and systematized; The main conclusions about the peculiarities of the socio-political and educational activities of former deputies in exile are formulated.

Historical and pedagogical aspects of the formation of fire education in the Baikal region in the 60s and 70s

The subject of the research of the scientific article is the peculiarities of the process of formation of the educational and pedagogical base in educational institutions of the fire department of the Ministry of Internal Affairs of the USSR in the 60-70 years of the XX century on the territory of the Irkutsk region. A brief analysis of the transformation of structural units of educational and pedagogical orientation is given, and a list of heads of educational cycles and departments is indicated at the stage of formation and development of the Irkutsk Fire Technical School of the Ministry of Internal Affairs of the USSR, as well as the Irkutsk branch of the Higher Engineering fire Technical School of the Ministry of Internal Affairs of the USSR. The research methodology includes a concrete historical approach (M.V. Astakhov, I.D. Kovalchenko, V.F. Kolomiytsev, A.P. Pronstein, etc.), as well as generalization, comparison, synthesis, classification, concretization; analysis of archival documents, legislation and scientific literature; retrospective analysis; method of historical analogies. The novelty of this scientific article lies in the fact that during the scientific research, historical and pedagogical sources, archival data describing in detail the history of the formation and development of the structure of the educational and methodological base in educational institutions of the fire department of the Ministry of Internal Affairs of the USSR were identified and summarized. The conducted research is of interest to a wide range of readers, since the study of educational, pedagogical, structural and organizational activities in educational institutions of the fire department of the Ministry of Internal Affairs of the USSR is a very important component in the study of the formation and development of departmental education of the Ministry of Internal Affairs of the USSR in the territory of the Baikal region in the XX century. The scientific article analyzes the features of the implementation of pedagogical activity at the stage of formation of educational institutions of the fire profile. Examples of professional development of educational and structural units of cycles and departments of these educational institutions are considered, indicating the academic disciplines taught. The list of heads of these structural divisions at the stage of formation and development of the Irkutsk Fire Technical School and the Irkutsk branch of the Higher Engineering fire Technical School of the Ministry of Internal Affairs of the USSR is considered.

Коммуникации власти и общества на примере ревизий генерал-губернаторами Якутской области (середина XIX – начало XX в.)

The article examines the communicative practices of government and society using the example of the visits of East Siberian (Irkutsk) governors general to the Yakut region. The source base for the study was archival materials from the collections of the Russian State Historical Archive, the State Archive of the Irkutsk Region and the National Archive of the Republic of Sakha (Yakutia). A comparative typological method was used. The circle of contacts of governors-general during revisions of the territory was reconstructed and analyzed, attention was paid to encouraging foreigners in the region as a component of the ethnic policy of the empire. The visit of the governors-general was an important event for the region; it gave the local population the opportunity to directly voice the pressing problems of their societies and demonstrate elements of culture and customs.

Iris Rabbitear Kasatik (Iris) laevigata Fischer et Meyer – distribution features on the north-western border of the area

As a result of special work, it was revealed that the Iris Rabbitear Kasatik (Iris) laevigata Fischer et Meyer is a rare species of the Irkutsk region, the Republic of Buryatia and the Transbaikal Krai. It is shown that until recently, the features of its distribution in the northwestern edge of its area were unknown. Our special long-term research has allowed us to identify it in many parts of this region. It is shown that all his finds are limited to the occurrence of small curtains of this species (2-10 flowering plants, rarely up to 20 and only in two cases 50-70 flowering stems). It has been established that this species is most common on the rivers of the Republic of Buryatia – Upper Angara and Kichera. The most typical stations of the species have been identified - very well-insulated open parts of grass-sedge swamps with separate lakes. It is shown that the main limiting factor for it is the lack of heat at the northwestern border of its area. Here, its distribution is limited by the mountain floodplain water regime. Summer floods coming from the mountains and reaching the strength of large and even catastrophic floods carry very cold waters, strongly depressing the vegetation of aquatic vegetables. It is proved that the conservation of this species can only be ensured by creating a network of differently ranked specially protected natural territories. For species with a local distribution of small parts suitable for their habitat, the organization of Natural Monuments at the republican and federal levels is the most promising.

Проблемы и находки депутатов «лихих 90-х»: к 30-летию Народного Хурала Республики Бурятия

A special problem in the work of deputies of regional parliaments of the "dashing 90s" was the constant lack of budget funds for vital social programs, education and health care. The nonpayment of salaries for several months, primarily to teachers and doctors, was difficult to overcome; the unfair privatization of public and state property, the real events of the consequences of the war in Chechnya of 1994-1998, unbridled crime, etc. A special Khural laboratory was established in the structure of the National Academy of Sciences and operated throughout the first convocation. The surveys allowed us to better understand people's psychology, their specific daily aspirations, diagnose their mood and attitude to emerging situations. A truthful and honest diagnosis of public opinion made it possible in some cases to make decisions and legislative acts consistent with the situation. At the fourth session, the symbols of the republic – the coat of arms and the anthem – were adopted, the work on the preparation of projects of which took a long time. Deputies of the People's Khural of the Republic of Buryatia managed to hold two parliamentary hearings in Ulan-Ude together with deputies of the State Duma of the Russian Federation: on the draft law "On Lake Baikal" (1994) and "On the plan of priority measures for the implementation of the concept of State National Policy of the Russian Federation" (1996). In both hearings, they adopted The participation of "neighbors": deputies of the Legislative Assembly of the Irkutsk region, representatives of the administration of the Ust-Ordynsky Buryat Autonomous Okrug.

По следам одного чувашского текста: от Иркутской области до Дуная

In 2023, in the Ziminsky district of the Irkutsk region, a story was recorded from the descendants of Chuvash settlers about a girl who left with a soldier who had invited her to marry with all her goods (dowry) and was abandoned by him on the bank of the river. Not wanting to return home in shame, the girl drowns herself. On the mother territory of the tradition – in the Volga region – four variants of this text were discovered. They are quite close to the Siberian version; they are distinguished by individual details and different lengths of text. In two versions, a different ending appears, perhaps formed in a later period – the girl does not drown herself, but returns home. More distant versions of this text were found in Belarusian, Ukrainian, Polish, and some Russian collections. This ballad plot was especially popular in the second half of the 19th – early 20th centuries. The examples of variable formulas given in the article clearly illustrate the variety of embodiments of the plot in detail while maintaining its main motives. The song text in question was presumably associated with the male performing tradition and existed primarily in a military environment. The Chuvash could get acquainted with this plot in the ancestral territories of its existence during their military service during the First World War. In the Chuvash versions of the ballad text, as a result of a different localization of the action, the emergence of stable formulas from ritual folklore, and the addition of details important for the Chuvash traditional culture, the folk worldview of the bearers of the tradition was manifested.

ПОВЫШЕНИЕ ЭФФЕКТИВНОСТИ ЭКСПЛУАТАЦИИ ЯРАКТИНСКОГО МЕСТОРОЖДЕНИЯ С ПРИМЕНЕНИЕМ ВЫРАВНИВАНИЯ ПРОФИЛЯ ПРИЕМИСТОСТИ НА ОСНОВЕ БИОПОЛИМЕРОВ

Integrated within the territorial boundaries of the Irkutsk region, the Yaraktinskoye hydrocarbon field is one of the key assets in the field of crude oil production and has been subject to active extraction procedures since the 1970s. This field is characterized by limited permeability parameters and heterogeneous properties of oil-bearing formations, which makes effective extraction of hydrocarbons highly difficult. Traditionally, to optimize the oil recovery factor at similar facilities, the permeability profile leveling methodology is used. It has been established that the effectiveness of this approach is significantly limited by geological and structural characteristics. Consequently, there is an urgent need to develop more effective mechanisms to increase the operational efficiency of the Yaraktinskoye field. At the moment, the field is facing many problems from an operational point of view, including a decrease in the oil recovery factor due to limited permeability of the formations and high water cut. The permeability profile of injection wells is also not homogeneous enough, which further exaggerates the problem of oil recovery. These factors collectively led to inflation of operating costs and degradation of the economic efficiency of the operating process. As part of solving the existing problems facing the Yaraktinskoye field, research was carried out on the efficiency of development using enhanced oil recovery technologies based on xanthan compositions in order to optimize the permeability profile of injection wells. Research is aimed at expanding the application capabilities of biopolymers in a wider range of geological and structural conditions. The research results indicate a significant optimization of the method for correcting the permeability profile, which in turn helps to increase oil recovery by 12-15% and reduce operating costs by 2025%. The research results may be useful for further exploitation of the field under conditions of increased water cut.

Uneven Development and Typology of Municipalities of the Irkutsk Region

Uneven Development and Typology of Municipalities of the Irkutsk Region

A tiny duck (<em>Sibirionetta formozovi</em> sp. nov.), a giant grey partridge (<em>Titanoperdix felixi</em> gen. et sp. nov.), a new rail (<em>Porzana payevskyi</em> sp. nov.), and other birds from the Early Pleistocene of Baikalian Siberia

The paper describes fossil birds from the Early Pleistocene (Gelasian) of Malye Goly locality in the Baikal area of the East Siberia (Irkutsk Region, Russia). This is the first studied bird fauna from the Early Pleistocene of the Northern Asia, shedding the first light on the early Quaternary bird associations of the Siberia. A tiny fossil duck Sibirionetta formozovi sp. nov. is the first fossil representative of the modern genus Sibirionetta, the modern endemic of Eastern Siberia. This find documents the long-time (at least since the Early Pleistocene) presence of these ducks in the region. A new large pheasant-sized phasianid bird Titanoperdix felixi gen. et sp. nov. is a large-sized representative of the grey partridge evolutionary lineage (Perdicini). This find is in agreement with the fact that modern relatively small grey partridges (genus Perdix) are phylogenetically nested within the larger-bodied pheasants. Among other birds from the locality are Tadorna tadorna, three other ducks (including one diving form), Perdix cf. dauurica, Porzana payevskyi sp. nov., Podicipedidae gen. indet., Scolopacidae gen. indet., and Corvidae gen. indet. The assemblage indicates a rather productive water body with mostly open landscapes in the vicinity. The avifauna from Malye Goly does not show any considerable affinity with the Late Pliocene avian assemblages from Southern Transbaikalia and Northern Mongolia, as well as with the Early Pleistocene bird fauna of Eastern China, and thus most likely represents a separate paleornithogeographical unit. Porzana payevskyi sp. nov. is one of the oldest confirmed representatives of Porzana s.s. in the fossil record, supporting the Asian origin of the genus and a probable out-of-Asia dispersal to North America in the Early Pleistocene.

Concession as a Tool for the Implementation of Regional Investment Projects

The implementation of promising investment projects is the most important task of the regions, since innovative ideas are being implemented, production and other promising areas for the regions are developing, new jobs are being created, regional product and budget occupancy are increasing. In Irkutsk region, a significant share of investment projects falls on the industrial sector. Projects in the field of agriculture, creating a comfortable urban environment, logistics and healthcare are also of great importance. A system of financial and non-financial institutions has been formed in the Irkutsk Region to support businesses in the implementation of investment projects. A promising tool for the implementation of investment projects is a concession. The purpose of this study is to study the modern possibilities of implementing concession agreements for the implementation of regional investment projects. The article discusses the concepts and approaches to the conclusion of concession agreements; legal aspects of the conclusion of concession agreements. Particular attention is paid to the problems of concluding concession agreements for the implementation of investment projects without attracting private capital. The research methodology is based on a theoretical analysis of the main aspects of investment design and its financing tools. The information base of the study was data on the development and implementation of investment projects in the Irkutsk region. The scientific novelty lies in the identification of a new mechanism for the implementation of concession operations, which involves the creation of quasi-public structures on the rights of private ones. The practice of concession operations with regional development corporations is being studied. The article examines the experience of concluding concession agreements in the regions of Russia. Special attention is paid to the creation of the Central cluster in the Irkutsk region on the terms of a concession. This is a major investment project that includes a waste sorting and recycling complex.

Prospects for the Construction of Techno-Cities in Siberia

The article discusses the prospects for industrial development in the Siberian region and the Irkutsk region, in particular, and assesses the need to build new cities for the development of such industry. The research is based on a brief analysis of the development of the industrial sector in this region, as well as a more complete analysis of the idea of creating new techno-cities and clusters in Siberia. Relevance. The trend of economic growth allows us to emphasize the importance of ensuring the sustainable development of industry in the Russian Federation. Stable existence in such conditions is ensured by the mechanism of sustainable modernization. He is able to direct the activities of the organization taking into account all the features of the economic and financial system, as well as to ensure a long-term crisis-free existence. The novelty of the study. The creation of techno-cities and the full industrialization of this region occupies a small share in modern research. The purpose of the article is to identify the features of the sustainable development of industry in the Irkutsk region by the example of the implementation of the idea of creating techno-cities in Siberia. Materials and methods of research. The methodological basis of this research is: methods of deduction and induction, methods of comparison, analysis and synthesis. Results and conclusions. The conducted research shows that the creation of new industrial clusters and techno-cities on the territory of the Siberian region is a difficult task and has a huge number of nuances.

Trends in the Development of Small Business in Russia and the Baikal Region in 2017–2023

The purpose of the article is to consider modern, mainly quantitative, trends in the development of small business in two subjects of the Baikal region — the Republic of Buryatia and the Irkutsk region. At the same time, the current trends are compared with the all-Russian trends and key indicators that traditionally characterize the state of small business in developed countries, and with the target indicators of the Strategy for the Development of Small and Medium-sized Enterprises in the Russian Federation for the period up to 2030. As a result of the analysis of a number of absolute and relative indicators, conclusions are drawn about a rather specific modern picture of small business development in the regions under consideration against the background of such all-Russian trends as an increase in the number of small and microenterprises with a reduction in the number of employees employed in them, a decrease in the proportion of the number of employees of small enterprises in the total number of employed and an almost unchanged value of the contribution indicator small business in Russia's GDP. It can be seen that while maintaining such dynamics, it is impossible to achieve the target targets of the Strategy. At the same time, since its development, a significant number of negative external factors have appeared that affect the development of business, including small ones, which have caused the emergence of problems of a new nature. Consequently, we should not talk about the inefficiency of the measures taken by the state and other support for small businesses, but rather about the insufficiency of these measures and their untimely actualization within the framework of the impact of newly emerging negative environmental factors.

Regulatory Impact of Competitions of Professional Skills in the Provision of Accommodation Services (Hotel Services) in Tourism

In the conditions of development of inbound and domestic tourism in the Russian Federation, there is an increasing need for professional staff, including for the sphere of accommodation services (hotel services). In this regard, it is relevant to search for effective tools for the professional development of personnel, which include contests of professional excellence. The study studied the main goals and objectives of national and all-Russian professional competitions, assessed the regulatory impact of the regional competition «Irkutsk Hospitality» implemented in the Irkutsk region in the period 2012–2023. The increasing role of professional competitions held at the federal and regional level in the formation of competitive professionals (managers, mentors, receptionists (administrators), waiters, room service specialists (maids) and others), establishing a constructive dialog of parties interested in the development of accommodation services (hotel services), promotion of tourist areas. Recommendations aimed at strengthening the regulatory impact of regional competitions of professional excellence were developed, related to holding municipal stages of the competition in the territory of the Irkutsk region, expanding the number of participants and stakeholders, organizing the discussion of problematic issues within the framework of the competition (round tables, etc.), including the competition in the number of recognizable events in the region.

ANALYSIS OF THE EFFECTIVENESS OF STIMULATION METHODS AT THE TRIZ FACILITY — PREOBRAZHENSK PETROLEUM PRODUCT HORIZON, EASTERN SIBERIA

The history of prospecting and exploration of oil and gas fields within the Nepsko-Botuoba Anteklisa (NBA) and the eponymous oil and gas region (OGR) of the Leno-Tunguska Oil and Gas Province of the Siberian Platform dates back more than half a century. The base object of exploration for a long time remained the terrigenous deposits of the Venda reservoir. A number of large, medium and small hydrocarbon deposits are associated with them. The beginning of a systematic study of the northern regions of the Irkutsk region was the receipt of oil inflow from the Markov reference well in 1962. In 1971, the Yaraktinskoye gas condensate field was discovered north of Markovsky. In 1970, a parametric well was drilled within the Preobrazhensky uplift, which made it possible to identify a productive carbonate horizon (Zone B12), from which a gas inflow was obtained after hydrochloric acid treatment. Further continuation of the complex of geophysical studies east and south of Preobrazhenskaya Square made it possible to identify a number of positive structural forms. In the Chonsky zone, several local complications were identified — Chonsky, Molchalunsky and Verkhnechonsky structural noses, recommended for setting up area studies of MOU. The Preobrazhensky horizon (Zone B12) ranks second among the pay zones in terms of potential in-place reserves. It is the extremely low filtrationcapacitive properties of the natural reservoir and the harsh thermobaric conditions at the pressure of oil saturation with gas close to the initial reservoir pressure that is the basis for classifying these reserves as hard to recover (RHR).This article discusses the methodological features of drilling and completion of oil producing wells with a horizontal end of a long length, ascending inclined boreholes, multi-hole horizontal wells (MHW), conducting MHW, large-volume MKO and KGRP in the carbonate natural reservoir of the Preobrazhensky productive horizon (B12) of one of the fields of the Nepsky arch in the north of the Irkutsk region. The oil reserves of this tank are classified as difficult to recover (RHR). Research and search for new approaches to the development of the TRiZ facilities of the Preobrazhensky carbonate horizon in this field is today the most important task. The main results of the testing of the complex of geological and technological measures (GTM) are summarized, including a new effective technology for conducting multi-stage hydraulic fracturing, which is planned for use in the further full-scale development of the oil reservoir.

The Study of the Industrial Infrastructure of Irkutsk-II During World War II

During the years of the Great Patriotic War, Soviet industry was evacuated from the western regions of the country to the deep east - to Siberia, unprecedented in world history. The article deals with the chronology of wartime events in 1941–1945. The author used declassified materials from archival documents, but mainly the works of S.N. Aksenov «Irkutsk Aviation Plant. History of Education 1932–1956». The object of the study was the industrial infrastructure of Irkutsk-II (village of aircraft builders), which became the industrial epicenter of the region during the Second World War. The phenomena considered in the study reflect not only regional specifics, but also all-Russian trends. Therefore, some economic indicators of the aircraft industry of that time are given, despite the confidential nature of the industry. On the basis of the study, the author concluded that during the period of 1941–1945, the aircraft industry was the infrastructure-forming industry of the Irkutsk region.

Trends and «Oddities» in the Evolution of Industry in the Irkutsk Region in the Space of Innovative and Destructive Disturbances

The bizarre evolution of regional industry in a disturbed environment is manifested by the features of non-linear functioning as responses to the influence of assertive factors of transformation of the world and national economy. The motley picture of the chronological series of values of basic industry indicators encourages us to evaluate and explain the observed trends, drawing attention to the «oddities» of the economic dynamics of industry in the Irkutsk region. In an effort to increase the analytics of transition processes excited in the regional economy by streams of innovative and destructive disturbances, the theoretically and practically significant task of objectifying and understanding the patterns of maneuvering of the industry of the Baikal region in a non-stationary environment is being updated. The attractiveness of research on this popular topic in order to identify and argue trends in the evolution of industry in the Irkutsk region obliges us to turn to the teachings of evolution, chaos and disasters, nonlinear dynamics and synergetics, which constitute the methodology of the research presented, for instrumental processing and interpretation of complex economic processes in industrial systems. The information and empirical basis for the research was information from federal and regional statistics, scientific publications on the problems of industrial and innovation management. In accordance with the purpose of the study, the object of study is the industry of the Irkutsk region. Scientific novelty lies in the increase in knowledge about the sources, factors and phenomena of the evolution of regional industry in the space of innovative and destructive disturbances. The article reveals the nonlinear dynamics of indices of the physical volume of the gross regional product, industrial production, investment in fixed capital, and a number of indicators of innovative activity of the regional industry. The conducted research modernizes the theoretical, methodological and applied tools for managing the development of regional industry in a non-stationary environment.

Assessment of the Level, Direction and Factors of Structural Changes in the Irkutsk Region Industry

It is known that the structure of industrial production in Russia was formed under the influence of many factors that caused its raw materials specialization and accelerated development of the military-industrial complex. Since the realization of the need for structural transformations (the beginning of the 90s), authorities, associations of industrialists and the scientific community have offered various options for actions aimed at mitigating (eliminating) accumulated and continuing to intensify structural deformations, some measures (programs) have been implemented in whole or in part. In addition, the modern actualization of import substitution processes should also have a significant impact on the structure of the economy and industry, in particular. As a result, there is a need to assess the direction and intensity of structural changes in industrial production over the period 1991–2023, as a result of which it is possible to judge the degree of impact and effectiveness of implemented measures, including in the field of import substitution, on the structure of industry. In the article, this assessment is carried out on the example of the Irkutsk region. According to calculations, the conclusion is made about the preservation and deepening of the raw materials specialization of the industry of the Irkutsk region, despite the measures taken. The key factor was the implementation of major investment projects in the field of oil and gas production, as well as their transportation, which led to a significant increase in the share of extractive industries. At the same time, there is a point-by-point growth in some manufacturing industries, including high-tech ones, which does not affect the structural dynamics as a whole, but proves the effectiveness of the measures taken in the field of import substitution and the development of manufacturing industries.

Management of the Resource Potential of Forest Systems of the Irkutsk Region in Conditions of Subsurface Use

The article discusses the management of forest systems that face increasingly complex conditions and the possibility of developing the potential of these systems through inter-industry interaction. We conducted a comprehensive analysis of the negative impact of energy industry enterprises on the natural environment and, consequently, on forest systems when forests and oil and gas enterprises located in adjacent areas. The study found a negative impact of subsoil use enterprises on the state and development of forest systems in the Irkutsk region in the current environmental and economic situation. Considering the scale of the state of the quantitative, structural and qualitative potential of forests it is obvious that without changing the management of ongoing processes it is difficult to expect positive changes in the state of forest systems. We have established that there is a need for interaction between the management bodies of the forestry and mining industries in this situation. It is necessary to develop a well-founded regulatory mechanism for the preventive minimization of negative impacts on forests from the oil and gas complex, or a measure of economic liability for damage to change the situation in forests.

Persistent Organic Pollutants and Suspended Particulate Matter in Snow of Eastern Siberia in 2009-2023: Temporal Trends and Effects of Meteorological Factors and Recultivation Activities at Former Industrial Area.

Suspended particulate matter (SPM), polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCP) were studied in the snow cover at urban and suburban localities in the Irkutsk region, Eastern Siberia for their temporal variations in 2009-2023, daily deposition fluxes (DDFs), and effects of some meteorological factors, as well as the effects of different technogenic activities in the industrial area of the former organochlorine enterprises of Usol'ekhimprom. SPM loads at both stations were found to be at a low level of pollution. The levels of HCB, α + γ-HCH, and ∑p,p'-DDX were lower than Russian maximum permissible levels (MPLs) in drinking water, groundwater, and surface water for household drinking and cultural purposes. The sums of all organochlorine compounds studied in snow were higher than the MPL in freshwater water bodies for fishery purposes. The levels of the DDFs of HCHs, DDTs, and heptachlorinated PCB decreased, di- and trichlorinated PCB levels increased, and HCB levels changed at a polynomial line during 2009-2023. The change in the relative composition of PCBs was found as a result of recultivation activities at the industrial area of the former organochlorine enterprise of Usol'ekhimprom. The air humidity and temperature are the key meteorological factors affecting the DDFs of PCBs and OCPs.