Water ecosystem health assessment of Zayandeh Rood
Background: Heavy metal pollutants in rivers are one of the serious environmental concerns in aquatic ecosystems. Sediments, as an environmental indicator, have an acceptable ability to express the degree of environmental pollution with heavy metals. Therefore, with the aim of evaluating the health...
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| Format: | Article |
| Language: | fas |
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Alborz University of Medical Sciences
2023-05-01
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| Series: | Muhandisī-i Bihdāsht-i Muḥīṭ |
| Subjects: | |
| Online Access: | http://jehe.abzums.ac.ir/article-1-970-en.pdf |
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| author | Samar Mortazavi Golnar Makhfi Akram Karimi Siavash Rezazadeh Mohamad Parsi Mehr |
| author_facet | Samar Mortazavi Golnar Makhfi Akram Karimi Siavash Rezazadeh Mohamad Parsi Mehr |
| author_sort | Samar Mortazavi |
| collection | DOAJ |
| description | Background: Heavy metal pollutants in rivers are one of the serious environmental concerns in aquatic ecosystems. Sediments, as an environmental indicator, have an acceptable ability to express the degree of environmental pollution with heavy metals. Therefore, with the aim of evaluating the health of the water ecosystem of Zayandeh Rood, we investigated pollution using sediment indicators.
Methods: In this study, the sediments of Zayandeh Rood River were sampled at 17 stations. Metals lead, zinc, iron, cadmium, cobalt, nickel, copper and chromium were measured by acid digestion method with atomic absorption device. Also, land accumulation indices, Nemerow pollution index and ecological risk potential were calculated.
Results: The average concentration of metals in sediments is 1762.92 iron, 201.52 nickel, 44.07 zinc, 23.36 cobalt, 28.67 copper, 11.51 lead, 10.09 chromium, and 0.87 cadmium mg/kg. According to the Igeo index, the average concentration of chromium, iron, copper, zinc and lead elements in all stations was lower than the average of the earth's crust, and the concentration of nickel and cadmium in all stations was higher than the background value. In all stations, the ecological risk potential index of cadmium was higher than other elements.
Conclusion: Considering the condition of river sediments in terms of cadmium and nickel pollution and their very high ecological risk, it is necessary to comprehensively monitor the river and its living organisms. Also, in order to evaluate its health and ecological risk with the approach of examining the trend of spatial and temporal changes, heavy metal pollution in water and river sediments should be taken into consideration. |
| first_indexed | 2024-04-24T12:30:18Z |
| format | Article |
| id | doaj.art-112ab6d962e54742be7e41ba57a62b7c |
| institution | Directory Open Access Journal |
| issn | 2383-3211 2588-4239 |
| language | fas |
| last_indexed | 2024-04-24T12:30:18Z |
| publishDate | 2023-05-01 |
| publisher | Alborz University of Medical Sciences |
| record_format | Article |
| series | Muhandisī-i Bihdāsht-i Muḥīṭ |
| spelling | doaj.art-112ab6d962e54742be7e41ba57a62b7c2024-04-08T05:54:08ZfasAlborz University of Medical SciencesMuhandisī-i Bihdāsht-i Muḥīṭ2383-32112588-42392023-05-01103259275Water ecosystem health assessment of Zayandeh RoodSamar Mortazavi0Golnar Makhfi1Akram Karimi2Siavash Rezazadeh3Mohamad Parsi Mehr4 Assistant Professor, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran Department of Environmental Science, Faculty of Natural Resources and Environments, Malayer University, Hamedan, Iran Department of Environmental Science, Faculty of Natural Resources and Environments, Malayer University, Hamedan, Iran Department of Environmental Science, Faculty of Natural Resources and Environments, Malayer University, Hamedan, Iran Ph.D student of Environmental Pollution, Faculty of Natural Resources and Environment, Malayer University, Malayer, Hamedan, Iran. Background: Heavy metal pollutants in rivers are one of the serious environmental concerns in aquatic ecosystems. Sediments, as an environmental indicator, have an acceptable ability to express the degree of environmental pollution with heavy metals. Therefore, with the aim of evaluating the health of the water ecosystem of Zayandeh Rood, we investigated pollution using sediment indicators. Methods: In this study, the sediments of Zayandeh Rood River were sampled at 17 stations. Metals lead, zinc, iron, cadmium, cobalt, nickel, copper and chromium were measured by acid digestion method with atomic absorption device. Also, land accumulation indices, Nemerow pollution index and ecological risk potential were calculated. Results: The average concentration of metals in sediments is 1762.92 iron, 201.52 nickel, 44.07 zinc, 23.36 cobalt, 28.67 copper, 11.51 lead, 10.09 chromium, and 0.87 cadmium mg/kg. According to the Igeo index, the average concentration of chromium, iron, copper, zinc and lead elements in all stations was lower than the average of the earth's crust, and the concentration of nickel and cadmium in all stations was higher than the background value. In all stations, the ecological risk potential index of cadmium was higher than other elements. Conclusion: Considering the condition of river sediments in terms of cadmium and nickel pollution and their very high ecological risk, it is necessary to comprehensively monitor the river and its living organisms. Also, in order to evaluate its health and ecological risk with the approach of examining the trend of spatial and temporal changes, heavy metal pollution in water and river sediments should be taken into consideration.http://jehe.abzums.ac.ir/article-1-970-en.pdfsediments contaminationgeoaccumulation indexnemerow pollution indexpotential ecological risk index. |
| spellingShingle | Samar Mortazavi Golnar Makhfi Akram Karimi Siavash Rezazadeh Mohamad Parsi Mehr Water ecosystem health assessment of Zayandeh Rood Muhandisī-i Bihdāsht-i Muḥīṭ sediments contamination geoaccumulation index nemerow pollution index potential ecological risk index. |
| title | Water ecosystem health assessment of Zayandeh Rood |
| title_full | Water ecosystem health assessment of Zayandeh Rood |
| title_fullStr | Water ecosystem health assessment of Zayandeh Rood |
| title_full_unstemmed | Water ecosystem health assessment of Zayandeh Rood |
| title_short | Water ecosystem health assessment of Zayandeh Rood |
| title_sort | water ecosystem health assessment of zayandeh rood |
| topic | sediments contamination geoaccumulation index nemerow pollution index potential ecological risk index. |
| url | http://jehe.abzums.ac.ir/article-1-970-en.pdf |
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