The formation of human health takes place under conditions of both positive and negative influence of the external environment. There is an undoubted connection between human health and the degree of its intervention in the natural environment, which, in turn, is determined by the level of environmental awareness of society. The purpose of this study was to determine the relationship between the levels of awareness, instructions and activities at different levels of environmental consciousness of modern youth. Used methods: bibliographic; questionnaire method (to collect data on the environmental awareness of young people); statistical (for selection and analysis of obtained data); mathematical (for constructing formulas and calculating levels of ecological consciousness and its components). A questionnaire was developed to survey students and high school students in different cities of Ukraine. 285 respondents aged 15 to 24 took part in the survey. In order to compare the level of environmental awareness of young people with  people of other age groups, 53 respondents over the age of 24 were involved in the survey, which was 15,7% of the total number of respondents. The questionnaire was conventionally divided into semantic modules for the possibility of determining the levels of environmental knowledge, instructions and behavior. To achieve the goal of the work, the level of environmental awareness and its components, taking into account gender and age, was assessed. Quantitative values of the levels of the components of environmental consciousness were calculated according to the integral evaluation formulas. For the convenience of assessing the level of the components of environmental consciousness, the quantitative values were ranked in three classes: "weak", "medium" and "high" severity. It was found that young people of both sexes almost do not differ in the high level of guidance. However, the share of girls with a high level of awareness is slightly higher than the share of boys and is significantly higher by a high level of activity. Awareness of the social and individual value of nature increases significantly with age, but readiness for active nature conservation activities does not change with age. The dependence of eco-awareness on the place of residence has been established: in small towns, the eco-awareness of residents is higher than in those who live in large cities. Also, eco-awareness depends on the field of study: students of humanitarian specialties have a significantly higher level of eco-awareness than students of technical universities. The analysis of the obtained results will contribute to the development of ways of forming the ecological consciousness of pupils and students, which is one of the main tasks of ecological and hygienic education and education of young people.

The aim of this work was to assess the risk of carcinogenic substances with a proven danger to humans at the level of current maximum permissible concentrations (MPC). The results were obtained on the basis of the collection and analysis of data on chemical carcinogenic compounds that are included in the national regulatory base of permissible content in the atmospheric air of populated areas, as well as the base of Directives of EU countries and the International Agency for the Study of Cancer using bibliosemantic, bibliographic and hygienic research methods. At the same time, the chemical substances classified by experts from International Agency for Research on Cancer in terms of carcinogenicity to humans were taken into consideration: definitely carcinogenic (group 1), probably (group 2A) and possibly carcinogenic to humans (group 2B). As a result, 52 compounds were identified in the list of carcinogenic substances normalized in atmospheric air, of which 12 substances are assigned to group 1, 13 to group 2A, and 27 to group 2B. In this work, only substances of the first group were subject to in-depth analysis. To assess the danger of substances’ concentrations at the level of maximum permissible concentrations, risk indicators according to the recommended methodical documents were determined. Calculations of the carcinogenic risk caused by the concentrations of these substances at the level of hygienic regulations for the atmospheric air of populated areas proved that only for two compounds (benzo/a/pyrene and formaldehyde) the risk is acceptable and meets the international standards recommended by EU and WHO. For other substances of this group, the carcinogenic risk of exposure is excessive. A conclusion was made regarding the need to review the existing hygienic standards from the standpoint of risk and consider them in the future as annual averages. In order to solve this issue, the criterion scale "concentration - carcinogenic risk" was highlighted in the work, with the help of which it was proposed to determine the maximum permissible concentrations according to the indicators of risk acceptable for the conditions of Ukraine.

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Objective: analytical study of scientific achievements by Institute's specialists in the field of prevention of non-communicable and infectious diseases of the population caused by negative impact of environmental and social factors of living conditions, based on the results of research work and their implementation. Materials and methods: scientific reports, acts of implementation of the results of scientific research works. The research uses a system-analytical method. Research results: The results of research conducted at the Institute for the last three years were analyzed. The physical, chemical, and social factors, life conditions of different segments of the population have been assessed and their negative impact on health has been proven. A number of scientifically substantiated regulatory and methodological instructive and information documents have been developed aimed at minimizing harmful environmental factors and preventing diseases in the population.

Для оцінки здоров’я традиційно використовують показники захворюваності, частоти порушень функціонального стану й фізичного розвитку організму, тобто непрямі показники, що не дозволяють повною мірою оцінити рівень здоров’я населення. За цими показниками здоров’я школярів погіршується: за період навчання зменшується кількість здорових дітей у 1,8 раза, водночас відмічається зростання майже вдвічі частки дітей з хронічними захворюваннями, що свідчить про накопичення хронічної патології в дитячій популяції. Для всебічної характеристики здоров’я населення необхідно враховувати позитивні, тобто прямі, показники здоров’я, такі як адаптаційний потенціал, рівень соматичного здоров’я та інші, що характеризують стан адаптаційних резервів та інтеграційних можливостей різних систем організму. За цими показниками нами виявлено, що в молодшій школі більша частина дітей мали низький рівень соматичного здоров’я, третина школярів — середній рівень і лише десята частина учнів молодшої школи мали високий рівень здоров’я. Приблизно такий же розподіл за рівнем соматичного здоров’я спостерігався і в учнів середнього шкільного віку. Однак при переході від середньої до старшої школи поступово починає зростати кількість дітей з високим рівнем соматичного здоров’я, що вказує на покращення адаптаційних можливостей організму дитини з віком. Отже, у динаміці навчання в загальноосвітньому навчальному закладі за непрямими та прямими показниками здоров’я виявлена різновекторна спрямованість змін: з одного боку, відмічається накопичення хронічної патології в дитячій популяції, а з іншого — синхронізація процесів у діяльності різних систем організму, що з віком проявляється в поступовому зростанні резервних можливостей організму дітей.