Assessment of heavy metals in roadside dust along the Abu Dhabi–Al Ain National Highway, UAE

Al-Taani, Ahmed A.; Nazzal, Yousef; Howari, Fares M.

doi:10.1007/s12665-019-8406-x

Cited by 38 publications

(30 citation statements)

References 60 publications

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“…Cd, Pb, and Zn in soils could originate partly from traffic activities [ 24 , 68 , 69 , 70 ]. Elevated levels of heavy metals were observed in roadside dust samples collected from Abu Dhabi, particularly Cr, Pb, Zn, and Mn [ 2 ] ( Table 3 ). However, sediment samples collected from the coastal area of Abu Dhabi further from the major highway showed low concentration [ 71 ] ( Table 3 ).…”

Section: Resultsmentioning

confidence: 99%

“…Heavy metals are mostly toxic, persistent, and bioaccumulative. They tend to accumulate in soils [ 1 , 2 , 3 ], and transmit to the plants’ parts, which action as bioaccumulators [ 4 , 5 , 6 , 7 ]. The ingestion of contaminated food has adverse effects on the human health, especially on children [ 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…While a large number of publications have assessed heavy metals in urban soils [ 17 , 26 , 31 , 32 , 33 , 34 , 35 ], their status and impacts on remote soils have received less attention. The presence of heavy metals in sediments [ 25 , 36 ], dust [ 36 , 37 ] and in coastal areas [ 38 ] is considered to be a good indicator of soil contamination [ 2 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…In arid regions, soil contamination with heavy metals may have different sources and pathways. Arid climates with frequent dust storms can cause heavy metals dissipation at long distances [ 2 , 39 ]. Elevated levels of metals were found in remote areas in arid regions and have been linked to atmospheric dust containing metals [ 3 ], among others.…”

Section: Introductionmentioning

confidence: 99%

“…Elevated levels of metals were found in remote areas in arid regions and have been linked to atmospheric dust containing metals [ 3 ], among others. Besides, the fossil fuel burning explains the the input of heavy metals in some remote areas [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Contamination Assessment of Heavy Metals in Agricultural Soil, in the Liwa Area (UAE)

Al-Taani

Nazzal

Howari

et al. 2021

Toxics

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The Liwa area is a primary food production area in the United Arab Emirates (UAE) and has intensively been used for agriculture. This study investigates the pollution levels with heavy metals in agricultural soils from the Liwa area. Thirty-two soil samples were analyzed for Mn, Zn, Cr, Ni, Cu, Pb, Cd, Co, and As. Results revealed that heavy metal levels varied in the ranges 220.02–311.21, 42.39–66.92, 43.43–71.55, 32.86–52.12, 10.29–21.70, 2.83–8.84, 0.46–0.69, 0.03–0.37 mg/kg for Mn, Zn, Cr, Ni, Cu, Pb, Cd, Co, and As, respectively. All samples presented low As concentrations with an average of 0.01 mg/kg. The variations in bulk metal contents in the soil samples were related to multiple sources, including agrochemicals, atmospheric dust containing heavy metals, and traffic-related metals. Enrichment factor analysis indicates that Cd, Ni, Zn, and Cr were highly enriched in soils, and they could originate from non-crustal sources. Based on the geo-accumulation index (Igeo), the soil samples appeared uncontaminated with Mn, Cr, Zn, Pb, Co, As, Cu, uncontaminated to moderately contaminated with Ni and moderately contaminated with Cd. The contamination factors suggest low contamination, except for Ni, which showed moderate contamination. The average pollution load index (PLI) revealed unpolluted to low pollution of all soil samples. The ecological risk assessment (PERI) showed that all heavy metals posed a low risk, except for Cd which exhibited a high ecological risk.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Contamination Assessment of Heavy Metals in Agricultural Soil, in the Liwa Area (UAE)

Al-Taani

Nazzal

Howari

et al. 2021

Toxics

Self Cite

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Complexity of hydrology, sewage and industries in distribution and migration pathways of heavy metals at spatial scale of China's brownfields

Yu,

Wang,

Zhang

et al. 2023

Ecohydrology

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Hydrologic dynamics, sewage and industries determine the distribution and migration pathways of heavy metals in the natural environments including soils across the urbanized area. In this study, 323 stratified soil samples from a brownfield in Jiangsu Province, China, were collected to assess the heavy metals (Cu, Ni, Pb, Cd, As and Hg) contaminations. Contamination factor (Cfi), Nemerow pollution index (PIN) and enrichment factor (EFi) were evaluated to assess the heavy metal pollution, while sources of pollution were identified in combination with geo‐statistical, correlations and principal components analysis. Moreover, transport of Ni in soil profiles over the next 30 years was simulated using HYDRUS. The vertical distribution revealed that the soil surface (0–10 cm) had the highest concentration of heavy metal contamination. ICP‐MS measurements showed that the soil in the brownfield was enriched with Cu, Ni, Pb, Cd, As and Hg, where Ni was the most severe and prevalent contaminant. The results of source apportionment analysis showed that Ni, Cd, Pb and Cu were mainly derived from building materials and sewage discharge, while As and Hg may come from fossil fuel combustion and agricultural discharges from upstream river catchment. The migration of Ni was largely driven by the combination of hydrological variability including the flow and solute contaminant gradients in soils. Our work highlights the need for a comprehensive understanding of the complexity of hydrology, and sewage discharge in heavy metal dynamics and migration pathways in China's brownfield soil at regional and national scales.

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Atmospheric sources of trace element contamination in cultivated urban areas: A review

Mauro

2020

J of Env Quality

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Producing food in cities has garnered increasing attention over the past decade. Although there are ecological and social benefits, cultivated urban areas (CUAs) also bear contamination hazards, including from trace elements (TEs). Trace element contamination has been studied extensively in CUAs, but atmospheric sources remain understudied and poorly understood. A brief discussion is offered on atmospheric particulate deposition processes in cities and their implications for urban food production. Available findings are discussed and contrasted. Existing research assesses atmospheric deposition indirectly or otherwise lacks controls for other TE contaminants. There is little to no engagement with methodological guidelines from the atmospheric sciences, which reduces confidence in the findings so far attained. Suggestions are delineated to combine techniques used in the atmospheric sciences with the robust methodologies already generated by studies on TE contamination in CUAs, such as isotope and TE ratios analyses.

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Assessment of heavy metals in roadside dust along the Abu Dhabi–Al Ain National Highway, UAE

Cited by 38 publications

References 60 publications

Contamination Assessment of Heavy Metals in Agricultural Soil, in the Liwa Area (UAE)

Contamination Assessment of Heavy Metals in Agricultural Soil, in the Liwa Area (UAE)

Complexity of hydrology, sewage and industries in distribution and migration pathways of heavy metals at spatial scale of China's brownfields

Atmospheric sources of trace element contamination in cultivated urban areas: A review

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