This study analyzes modern approaches to the monitoring systems organization for heavy metals in the soil cover in urban areas. The current situation was considered in individual countries, as well as the organization features of the soil monitoring system in the Russian Federation and the city of Volgograd. The study results showed that in most foreign countries, monitoring of urban soils is currently one of the priority areas. The research system has a high level but is subject to improvement in certain areas. In most cities of the Russian Federation, monitoring researches on the content of heavy metals in soils are the unsystematic and nonperiodic feature and are usually associated with the implementation of thesis research or scientific projects. At the federal level, studies are conducted only in 33 cities, while the lists of identified elements vary significantly depending on the current industry specialization.

This paper examines the existing in the Russian Federation approaches to assessing the quality of the urban environment, the concept of the quality index of the urban environment; the analysis of indicators for calculating the quality index of the urban environment and the factors that form the ecological well-being of the urban environment for the local population has been carried out. The territory of the northern industrial hub of Volgograd was chosen as the object of research, in particular, the zone of influence of the ferrous metallurgy enterprise AO “VMK ‘Krasny Oktyabr’”, which has a historically specific location relative to the functional zones of the city. The analysis of the results of monitoring the content of mobile forms of heavy metals in the soil cover, carried out by the method of atomic absorption spectrometry, and the assessment of the general life state of tree green plantations in the territory of the sanitary protection zone of the enterprise based on the enumeration of trees is presented. The identified zone of influence of the enterprise, taking into account the presence of additional sources of pollution of the soil cover and MPC of metals, instead of their background concentrations, extends for 3.5–3.7 km from the border of the enterprise in the form of elongated areas of increased concentrations. Cartographic visualization reveals the presence of two clearly pronounced foci of pollution located to the west of the existing SOC of the enterprise. When assessing the general condition of trees, it is also possible to recognize the worst territory of the test plots located to the west of the operating TWCs in accordance with the directions of the prevailing winds. The data obtained confirm the feasibility of organizing regular monitoring of the soil cover and the state of green forests in the city as one of the directions for assessing the quality of the environment and taking these indicators into account when calculating the quality index of the urban environment.

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Abstract. The article considers features of the method of atomic absorption spectrometry and its variants. Special attention is paid to the relevance and peculiarities of its application in monitoring the content of heavy metals in different environments on a local and regional level. With the help of KVANT.Z atomic absorptive spectrometer (the company-producer is KORTEK) the author determines the actual volume of inputs of heavy metals from a specific local source. The metallurgical Krasnyy oktyabr plant was chosen as such a local source. The determination of the actual concentrations of heavy metals covered the winter period 2016-2017 and included measurement of content of individual elements in the freshly fallen solid precipitation. Sampling of solid precipitation was carried out in the band interval of 50-1200 meters from the impact of the object on the basis of a triangulated irregular network. The results of measurements, for example total content of zinc, indicate the possibility of determining the qualitative elemental composition of the studied environments, a reflection of the number concentration of the specific element at each point of sampling. The obtained data of local monitoring allows to evaluate effectively the actual area of a specific local object impact. This is especially urgent for the urban environment. АТОМНО-АБСОРБЦИОННАЯ СПЕКТРОМЕТРИЯ В ЛОКАЛЬНОМ МОНИТОРИНГЕ ТЯЖЕЛЫХ МЕТАЛЛОВ (НА ПРИМЕРЕ ТВЕРДЫХ ОСАДКОВ) Анна Афанасьевна ТихоноваВолгоградский государственный университет, г. Волгоград, Российская Федерация Аннотация. В работе рассмотрены метод атомно-абсорбционной спектрометрии и его разновиднос-ти, актуальность и особенности применения при проведении мониторинга содержания тяжелых металлов в различных средах на локальном и региональном уровнях. С помощью атомно-абсорбционного спектромет-ра «КВАНТ.Z» (производство ООО «КОРТЕК») проводилось определение фактических объемов поступле-ния тяжелых металлов от конкретного локального источника в зимний период 2016-2017 гг. посредством измерения содержания отдельных элементов в свежевыпавших твердых осадках. В качестве объекта воздей-ствия на окружающую среду был выбран ВМК «Красный Октябрь» г. Волгограда. Отбор проб проводился в интервале 50-1200 м от объекта воздействия. Представленные результаты измерений на примере валового содержания цинка указывают на возможность определения качественного элементного состава исследуе-мых сред с отражением количества концентрации конкретного элемента в каждой точке отбора проб и, следовательно, позволяют оценить фактическую зону влияния конкретного локального объекта, что являет-ся весьма актуальным для определения качества городской среды.Ключевые слова: атомно-абсорбционная спектрометрия, тяжелые металлы, локальный мониторинг, экологический мониторинг, черная металлургия.