Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials
To understand the distribution characteristics and potential ecological risks of heavy metals in soils in the typical volcanic area, 2,592 soil samples were collected from the surface layer (0–20 cm) and 269 samples were collected from the middle (80–100 cm) and deep layers (180–200 cm) in northeast...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-01-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023002001 |
| _version_ | 1811173337799327744 |
|---|---|
| author | Jianweng Gao Jingjing Gong Jianzhou Yang Zhenliang Wang Yangang Fu Shixin Tang Shengming Ma |
| author_facet | Jianweng Gao Jingjing Gong Jianzhou Yang Zhenliang Wang Yangang Fu Shixin Tang Shengming Ma |
| author_sort | Jianweng Gao |
| collection | DOAJ |
| description | To understand the distribution characteristics and potential ecological risks of heavy metals in soils in the typical volcanic area, 2,592 soil samples were collected from the surface layer (0–20 cm) and 269 samples were collected from the middle (80–100 cm) and deep layers (180–200 cm) in northeast of Hainan province, China. Accordingly, eight heavy metals (Cu, Pb, Zn, Cr, Ni, Cd, As, and Hg) were analyzed and determined. The effects of different parent materials and land use types on the accumulation of heavy metals in soils were compared, and the primary heavy metal sources were analyzed. The pollution level and ecological risk of heavy metals in soils in the study area were evaluated using the geo-accumulation index (Igeo) and potential ecological risk indices (Ei & RI). The results showed that, except that of Pb, the median concentrations of the analyzed heavy metals in the surface soils were higher than the background concentrations in the Hainan Island soils, indicating varying degrees of accumulation. The influence of land use type on the accumulation of heavy metals in surface soils varied from that of the parent materials. Anthropogenic activities highly influenced As, Cd, Hg, and Pb concentrations, whereas geological conditions primarily influenced Cr, Cu, Ni, and Zn concentrations. The Igeo results showed that the mean value of the eight metal elements were greater than zero, except for Pb. In the surface soils, the Igeo values of As, Cd, Hg, and Zn mostly fell into the light to moderate pollution class, and those of Cr, Cu, and Ni fell into the medium and heavy pollution class. The RI of the study area showed a high to significantly high ecological risk because of the Cd, Hg, and Ni concentrations. The results give a new insight in the parent material's geochemical control on the heavy metal elements in soils, and it can serve as a reference for the background value of local soil heavy metals and provide a scientific basis for controlling the potential ecological risk of heavy metals and reasonable land use plans. |
| first_indexed | 2024-04-10T17:45:16Z |
| format | Article |
| id | doaj.art-48e1aee10fe84253be54306b376b0b24 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-10T17:45:16Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-48e1aee10fe84253be54306b376b0b242023-02-03T05:00:05ZengElsevierHeliyon2405-84402023-01-0191e12993Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materialsJianweng Gao0Jingjing Gong1Jianzhou Yang2Zhenliang Wang3Yangang Fu4Shixin Tang5Shengming Ma6Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, China; Corresponding author. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China.Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, 065000, China; Key Laboratory for Geochemical Exploration Technology, Ministry of Natural Resources, Langfang, 065000, ChinaTo understand the distribution characteristics and potential ecological risks of heavy metals in soils in the typical volcanic area, 2,592 soil samples were collected from the surface layer (0–20 cm) and 269 samples were collected from the middle (80–100 cm) and deep layers (180–200 cm) in northeast of Hainan province, China. Accordingly, eight heavy metals (Cu, Pb, Zn, Cr, Ni, Cd, As, and Hg) were analyzed and determined. The effects of different parent materials and land use types on the accumulation of heavy metals in soils were compared, and the primary heavy metal sources were analyzed. The pollution level and ecological risk of heavy metals in soils in the study area were evaluated using the geo-accumulation index (Igeo) and potential ecological risk indices (Ei & RI). The results showed that, except that of Pb, the median concentrations of the analyzed heavy metals in the surface soils were higher than the background concentrations in the Hainan Island soils, indicating varying degrees of accumulation. The influence of land use type on the accumulation of heavy metals in surface soils varied from that of the parent materials. Anthropogenic activities highly influenced As, Cd, Hg, and Pb concentrations, whereas geological conditions primarily influenced Cr, Cu, Ni, and Zn concentrations. The Igeo results showed that the mean value of the eight metal elements were greater than zero, except for Pb. In the surface soils, the Igeo values of As, Cd, Hg, and Zn mostly fell into the light to moderate pollution class, and those of Cr, Cu, and Ni fell into the medium and heavy pollution class. The RI of the study area showed a high to significantly high ecological risk because of the Cd, Hg, and Ni concentrations. The results give a new insight in the parent material's geochemical control on the heavy metal elements in soils, and it can serve as a reference for the background value of local soil heavy metals and provide a scientific basis for controlling the potential ecological risk of heavy metals and reasonable land use plans.http://www.sciencedirect.com/science/article/pii/S2405844023002001Heavy metalsSoil pollutionParent materialLand use typesPotential ecological risk assessment |
| spellingShingle | Jianweng Gao Jingjing Gong Jianzhou Yang Zhenliang Wang Yangang Fu Shixin Tang Shengming Ma Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials Heliyon Heavy metals Soil pollution Parent material Land use types Potential ecological risk assessment |
| title | Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials |
| title_full | Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials |
| title_fullStr | Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials |
| title_full_unstemmed | Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials |
| title_short | Spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area: Influence of parent materials |
| title_sort | spatial distribution and ecological risk assessment of soil heavy metals in a typical volcanic area influence of parent materials |
| topic | Heavy metals Soil pollution Parent material Land use types Potential ecological risk assessment |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023002001 |
| work_keys_str_mv | AT jianwenggao spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT jingjinggong spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT jianzhouyang spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT zhenliangwang spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT yangangfu spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT shixintang spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials AT shengmingma spatialdistributionandecologicalriskassessmentofsoilheavymetalsinatypicalvolcanicareainfluenceofparentmaterials |