Accumulation of heavy metals by riverside and water vegetation in water bodies near the city of Zhlobin, Gomel region, Belarus
Relevance. Monitoring of extractive, mining processing and recycling enterprises impact on the environment is the important current scientific and practical problem. The analysis of riverside and water vegetation, and bottom sediments is often used to assess the status of water bodies. Monitoring of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2017-09-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya.tpu.ru/archive/article/view/1758 |
| Summary: | Relevance. Monitoring of extractive, mining processing and recycling enterprises impact on the environment is the important current scientific and practical problem. The analysis of riverside and water vegetation, and bottom sediments is often used to assess the status of water bodies. Monitoring of heavy metals in euhygrophytes plant samples on the example of Zhlobin (Republic of Belarus) allows developing new techniques for estimating threshold limits excess. The study of accumulation of nine heavy metals in 49 plant samples, carried out near the Belarusian Steel Works, indicated the urgency of this trend, complement and consistent with the results of investigations of Russian and foreign researchers. The main aim of the study is to reveal the indicator species and ecological plant groups with the most intensive accumulation of heavy metals in water bodies. The methods used in the study: floristic, geobotanical, atomic absorption. The results. The authors have analyzed water, soil and plant samples. In water, the maximum content of cobalt exceeded the threshold limits in 1,2_1,4 times, manganese - in 4,2_5,1 times, cadmium - in 1,2_1,8 times, nickel - in 1,3_2,4 times. In soil, the maximum content of copper exceeded the threshold limits in 1,4_11,6 times. Euhydrophytes and pleistophytes accumulated the highest levels of heavy metals. The maximum content of Co exceeded the background concentration in 48 (98 %) plant samples, Zn - 45 (91,9 %), Mn - 23 (47 %), Cu - 22 (44,9 %), Ni - 6 (12,3 %), Cr - 5 (10,2 %). The maximum content of Pb and Cd did not exceed the background concentration. Ceratophyllum demersum L. 1753 accumulated the highest levels of Cu and Ni, Lemna minor L. 1753 - Cu, Cr, Mn, Ni; Persicaria amphibia (L.) S.F. Gray - Cu, Zn, Ni, Cr; Nuphar lutea (L.) Smith - Fe; Glyceria maxima (C. Hartm.) Holub 1919 - Fe; Typha latifolia L. 1753 - Zn, Mn; Sagittaria sagittifolia L. 1753 - Ni, Cr; Phalaroides arundinacea (L.) Rauschert 1960 - Fe, Zn. Such elements as Cu, Ni, Cr, Fe, Mn are accumulated most of all. The results detect the environmental pollution area around the industrial centers. They can be used for geochemical monitoring and help us to develop the measures for reducing the heavy metal content in the environment. |
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| ISSN: | 2500-1019 2413-1830 |