Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria
Background. Different fractions of metals, of varying origin and reactivity, are present in sediments of forest soil. Forest ecosystems are privileged sites for the deposition of persistent organic pollutants carried by the atmosphere. Objectives. The present study describes the current state of met...
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| Format: | Article |
| Language: | English |
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Pure Earth
2021-06-01
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| Series: | Journal of Health and Pollution |
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| Online Access: | https://www.journalhealthpollution.org.pinnacle.allenpress.com/doi/pdf/10.5696/2156-9614-11.30.210614 |
| _version_ | 1818652708972789760 |
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| author | Fatima Zahra Benhachem Djamila Harrache |
| author_facet | Fatima Zahra Benhachem Djamila Harrache |
| author_sort | Fatima Zahra Benhachem |
| collection | DOAJ |
| description | Background. Different fractions of metals, of varying origin and reactivity, are present in sediments of forest soil. Forest ecosystems are privileged sites for the deposition of persistent organic pollutants carried by the atmosphere.
Objectives. The present study describes the current state of metallic contamination around the Hafir forest, located southwest of Tlemcen, Algeria, based on analysis of total sediment mineralization and the speciation of each metal to examine the effects of emissions due to road traffic.
Methods. The distribution and migration of ten heavy metals were studied, including cadmium (Cd), nickel (Ni), cobalt (Co), chromium (Cr), manganese (Mn), lead (Pb), copper (Cu), zinc (Zn), iron (Fe), and silver (Ag), and four major elements: potassium (K), sodium (Na), magnesium (Mg), and calcium (Ca) in the superficial horizon of forest soil (0–20 cm) at different road distances (0–1700 m), in two sampling campaigns in the dry and wet seasons around the Hafir forest, Algeria.
Results. Bioavailability appears to be relatively low due to the small amount of metals present in the carbonate fraction and the alkaline pH. The impact of road traffic was observed in the variability of the concentrations of several trace elements in forest soil, such as Co, Mn, Ni, Zn, Pb, Ag, Cd. They were generally observed at very high levels along the roadside due to dry atmospheric deposition.
Conclusions. The high levels of metals in the carbonate, reducible and residual phases indicate a direct influence on the environment stemming from road traffic near the forest as well as contamination from rainfall in the area.
Competing Interests. The authors declare no competing financial interests. |
| first_indexed | 2024-12-17T02:26:18Z |
| format | Article |
| id | doaj.art-3d3840cb7fbe4052a4ae1a347c2c012a |
| institution | Directory Open Access Journal |
| issn | 2156-9614 |
| language | English |
| last_indexed | 2024-12-17T02:26:18Z |
| publishDate | 2021-06-01 |
| publisher | Pure Earth |
| record_format | Article |
| series | Journal of Health and Pollution |
| spelling | doaj.art-3d3840cb7fbe4052a4ae1a347c2c012a2022-12-21T22:07:06ZengPure EarthJournal of Health and Pollution2156-96142021-06-01113011410.5696/2156-9614-11.30.2106142156-9614-11-30-210614Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, AlgeriaFatima Zahra Benhachem0Djamila Harrache1Department of Hydraulics, Institute of Sciences and Technology, University Center of Maghnia, AlgeriaDepartment of Chemistry, Faculty of Exact Sciences, University of Djillali Liabes, Sidi Bel Abbes, AlgeriaBackground. Different fractions of metals, of varying origin and reactivity, are present in sediments of forest soil. Forest ecosystems are privileged sites for the deposition of persistent organic pollutants carried by the atmosphere. Objectives. The present study describes the current state of metallic contamination around the Hafir forest, located southwest of Tlemcen, Algeria, based on analysis of total sediment mineralization and the speciation of each metal to examine the effects of emissions due to road traffic. Methods. The distribution and migration of ten heavy metals were studied, including cadmium (Cd), nickel (Ni), cobalt (Co), chromium (Cr), manganese (Mn), lead (Pb), copper (Cu), zinc (Zn), iron (Fe), and silver (Ag), and four major elements: potassium (K), sodium (Na), magnesium (Mg), and calcium (Ca) in the superficial horizon of forest soil (0–20 cm) at different road distances (0–1700 m), in two sampling campaigns in the dry and wet seasons around the Hafir forest, Algeria. Results. Bioavailability appears to be relatively low due to the small amount of metals present in the carbonate fraction and the alkaline pH. The impact of road traffic was observed in the variability of the concentrations of several trace elements in forest soil, such as Co, Mn, Ni, Zn, Pb, Ag, Cd. They were generally observed at very high levels along the roadside due to dry atmospheric deposition. Conclusions. The high levels of metals in the carbonate, reducible and residual phases indicate a direct influence on the environment stemming from road traffic near the forest as well as contamination from rainfall in the area. Competing Interests. The authors declare no competing financial interests.https://www.journalhealthpollution.org.pinnacle.allenpress.com/doi/pdf/10.5696/2156-9614-11.30.210614heavy metalssoilroad traffichafirspeciation |
| spellingShingle | Fatima Zahra Benhachem Djamila Harrache Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria Journal of Health and Pollution heavy metals soil road traffic hafir speciation |
| title | Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria |
| title_full | Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria |
| title_fullStr | Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria |
| title_full_unstemmed | Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria |
| title_short | Chemical Speciation and Potential Mobility of Heavy Metals in Forest Soil Near Road Traffic in Hafir, Algeria |
| title_sort | chemical speciation and potential mobility of heavy metals in forest soil near road traffic in hafir algeria |
| topic | heavy metals soil road traffic hafir speciation |
| url | https://www.journalhealthpollution.org.pinnacle.allenpress.com/doi/pdf/10.5696/2156-9614-11.30.210614 |
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