Pollution and ecological risk assessment of heavy metals in the soil-plant system and the sediment-water column around a former Pb/Zn-mining area in NE Morocco

Azhari, Abdellah El; Rhoujjati, Ali; Hachimi, M.L. El; Ambrosi, Jean-Paul

doi:10.1016/j.ecoenv.2017.06.051

Cited by 123 publications

(61 citation statements)

References 45 publications

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“…where C p is metal concentration in the plant and C s is aqua regia-extracted metal concentrations. The transfer factor values (TF) from soil to plants for various vegetables were calculated using the following equation [34,35]: TF= C plant /C soil (6) where C plant and C soil refer to the concentration of each element in a specific vegetable or soil, respectively. Bioaccumulation factor (BAF) was calculated to determine the efficiency of the plant at accumulating a trace element from the soil [36,37] as follows: BAF = metal concentration in plant tissues (mg kg −1 )/ AB-DTPA-extractable metal concentration in the surface soil layer (mg kg −1 )…”

Section: Ecological Risk Assessment Indicesmentioning

confidence: 99%

Seasonal and Spatial Distribution of Soil Trace Elements around Kitchener Drain in the Northern Nile Delta, Egypt

et al. 2019

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The pollution of agricultural soils, water and plants by trace elements (TEs) in the Nile Delta Region, Egypt, is of great importance. This study aimed to investigate the spatial and seasonal variation of some TEs in the agricultural area adjacent to Kitchener Drain and to evaluate the ecological risk posed by these elements using six indices. Soil and plant samples were collected from seven sites close to the drain, while water samples were collected from the corresponding sites inside the drain during three seasons (winter, spring and fall). The results showed that all studied TEs in the soil varied seasonally and spatially among the locations around the drain. Most of the studied elements in the soil were higher in the southern and middle area around the drain. All studied elements in the soil were also higher in the winter than other seasons. Nickel and lead were almost non-detected during all seasons in plant tissues, while other elements were higher in the winter than other seasons. In contrast to the soil and plant tissues, water samples demonstrated lower or non-detected levels of TEs. The results also indicated that the values for the risk assessment indices differed among the studied TEs. Therefore, there is a risk of increasing the concentration of some metals in the study area due to anthropogenic pollution from the adjacent polluted drain through irrigation with contaminated water and spreading of contaminated dredged materials on agricultural fields.

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Section: Ecological Risk Assessment Indicesmentioning

confidence: 99%

Seasonal and Spatial Distribution of Soil Trace Elements around Kitchener Drain in the Northern Nile Delta, Egypt

et al. 2019

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“…For the terrestrial environment, the main impact from PTE pollution is to ultimately create wasteland, and for the aquatic environment, an excess of PTEs can inhibit the growth and reproduction of higher terrestrial and aquatic plants, algae and invertebrate. In addition, PTEs in soil can be ingested into human or animal body through the food chain, and can be continuously enriched and potential exposure and harm to human health (Azhari et al 2017). The PTEs in soil can also be ingested directly through mouth, skin contact or breathing into the human body, adding to exposure and increasing risk (Sun et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Distribution, source identification, and ecological-health risks of potentially toxic elements (PTEs) in soil of thallium mine area (southwestern Guizhou, China)

Feng

Ren

Hursthouse

et al. 2019

Environ Sci Pollut Res

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“…7,8 Ecological and human health risk evaluation methods have been widely used to assess the potential risks of HMs to ecosystems and human beings. 9 Ecological risk methods have been developed based on the toxicity variance and comprehensive effect of multiple contaminants, such as potential ecological risk index (RI), 10,11 soil environment quality standard, 10 geoaccumulation index, 12 pollution load index 13 and enrichment factor (EF). 14 The health risk caused by HMs is usually evaluated by hazard quotient and cancer risk.…”

Section: Introductionmentioning

confidence: 99%

Accumulation, temporal variation, source apportionment and risk assessment of heavy metals in agricultural soils from the middle reaches of Fenhe River basin, North China

2019

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Pollution and ecological risk assessment of heavy metals in the soil-plant system and the sediment-water column around a former Pb/Zn-mining area in NE Morocco

Cited by 123 publications

References 45 publications

Seasonal and Spatial Distribution of Soil Trace Elements around Kitchener Drain in the Northern Nile Delta, Egypt

Seasonal and Spatial Distribution of Soil Trace Elements around Kitchener Drain in the Northern Nile Delta, Egypt

Distribution, source identification, and ecological-health risks of potentially toxic elements (PTEs) in soil of thallium mine area (southwestern Guizhou, China)

Accumulation, temporal variation, source apportionment and risk assessment of heavy metals in agricultural soils from the middle reaches of Fenhe River basin, North China

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