Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province
A total of 316 soil samples in An Giang province were collected from the industrial zone (48 samples), mining (40 samples), farming (112 samples), landfills (88 samples) and cemeteries (28 a samples) to analyze toxic elements including Cu, Zn, Pb, Cd and As. The geoaccumulation index (Igeo), polluta...
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| Format: | Article |
| Language: | English |
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Polish Society of Ecological Engineering (PTIE)
2022-07-01
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| Series: | Journal of Ecological Engineering |
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| Online Access: | http://www.jeeng.net/Ecological-Risk-Assessment-for-Occurrence-of-Toxic-Elements-in-Various-Land-Use-Types,149527,0,2.html |
| _version_ | 1811232222368235520 |
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| author | Nhien Thi Hong Huynh Mi Thi Diem Le Nguyen Thanh Giao |
| author_facet | Nhien Thi Hong Huynh Mi Thi Diem Le Nguyen Thanh Giao |
| author_sort | Nhien Thi Hong Huynh |
| collection | DOAJ |
| description | A total of 316 soil samples in An Giang province were collected from the industrial zone (48 samples), mining (40 samples), farming (112 samples), landfills (88 samples) and cemeteries (28 a samples) to analyze toxic elements including Cu, Zn, Pb, Cd and As. The geoaccumulation index (Igeo), pollutant load index (PLI) and potential ecological risk index (RI) were used to assess pollution levels and ecological risks. The results showed that the concentrations of heavy metals were almost still within the allowable limits of national standards. Cd was not detected. Heavy metals were detected in the soil in the following order: As < Pb < Cu < Zn mining < industrial < landfill < cultivation < cemetery areas. Heavy metals contributing to soil environmental variability were similarly identified in the cemetery with industry and landfill with farming. The value of Igeo shows that As has a high potential to accumulate in soil in all land uses. The ranges of PLI values presented that the soil in industrial, farming, mining and landfills areas were classified moderate, while the cemetery areas has been rated at a high level. The RI values identified very high, high, and moderate ecological risks for cemetery, industrial and farming land and landfill, mining, rsspectively. The combination of PLI and RI indexes showed that the cemetery areas were at the highest levels of pollution and risk. The results of this study provide scientific information on pollution level and ecological risks in various land use types supporting environmental zoning and managing strategies in An Giang province. |
| first_indexed | 2024-04-12T10:59:56Z |
| format | Article |
| id | doaj.art-24eb3826e675490aad7488ae3bd5f519 |
| institution | Directory Open Access Journal |
| issn | 2299-8993 |
| language | English |
| last_indexed | 2024-04-12T10:59:56Z |
| publishDate | 2022-07-01 |
| publisher | Polish Society of Ecological Engineering (PTIE) |
| record_format | Article |
| series | Journal of Ecological Engineering |
| spelling | doaj.art-24eb3826e675490aad7488ae3bd5f5192022-12-22T03:35:59ZengPolish Society of Ecological Engineering (PTIE)Journal of Ecological Engineering2299-89932022-07-0123712113010.12911/22998993/149527149527Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta ProvinceNhien Thi Hong Huynh0Mi Thi Diem Le1Nguyen Thanh Giao2https://orcid.org/0000-0001-5916-4710College of Environment and Natural Resources, Can Tho University, Campus II, 3/2 Street, Xuan Khanh ward, Ninh Kieu district, Can Tho City 900000, VietnamCollege of Environment and Natural Resources, Can Tho University, Campus II, 3/2 Street, Xuan Khanh ward, Ninh Kieu district, Can Tho City 900000, VietnamCollege of Environment and Natural Resources, Can Tho University, Campus II, 3/2 Street, Xuan Khanh ward, Ninh Kieu district, Can Tho City 900000, VietnamA total of 316 soil samples in An Giang province were collected from the industrial zone (48 samples), mining (40 samples), farming (112 samples), landfills (88 samples) and cemeteries (28 a samples) to analyze toxic elements including Cu, Zn, Pb, Cd and As. The geoaccumulation index (Igeo), pollutant load index (PLI) and potential ecological risk index (RI) were used to assess pollution levels and ecological risks. The results showed that the concentrations of heavy metals were almost still within the allowable limits of national standards. Cd was not detected. Heavy metals were detected in the soil in the following order: As < Pb < Cu < Zn mining < industrial < landfill < cultivation < cemetery areas. Heavy metals contributing to soil environmental variability were similarly identified in the cemetery with industry and landfill with farming. The value of Igeo shows that As has a high potential to accumulate in soil in all land uses. The ranges of PLI values presented that the soil in industrial, farming, mining and landfills areas were classified moderate, while the cemetery areas has been rated at a high level. The RI values identified very high, high, and moderate ecological risks for cemetery, industrial and farming land and landfill, mining, rsspectively. The combination of PLI and RI indexes showed that the cemetery areas were at the highest levels of pollution and risk. The results of this study provide scientific information on pollution level and ecological risks in various land use types supporting environmental zoning and managing strategies in An Giang province.http://www.jeeng.net/Ecological-Risk-Assessment-for-Occurrence-of-Toxic-Elements-in-Various-Land-Use-Types,149527,0,2.htmlheavy metalspollution indexecological risksland-use typesan giang |
| spellingShingle | Nhien Thi Hong Huynh Mi Thi Diem Le Nguyen Thanh Giao Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province Journal of Ecological Engineering heavy metals pollution index ecological risks land-use types an giang |
| title | Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province |
| title_full | Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province |
| title_fullStr | Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province |
| title_full_unstemmed | Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province |
| title_short | Ecological Risk Assessment for Occurrence of Toxic Elements in Various Land Use Types in Vietnamese Mekong Delta Province |
| title_sort | ecological risk assessment for occurrence of toxic elements in various land use types in vietnamese mekong delta province |
| topic | heavy metals pollution index ecological risks land-use types an giang |
| url | http://www.jeeng.net/Ecological-Risk-Assessment-for-Occurrence-of-Toxic-Elements-in-Various-Land-Use-Types,149527,0,2.html |
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