Trace elements absorption by citrus in a heavily polluted mining site

Romero, A.; González, I.; Galán, E.

doi:10.1016/j.gexplo.2011.11.005

Cited by 21 publications

(13 citation statements)

References 42 publications

(71 reference statements)

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“…9). These concentrations were comparable to the concentrations of Ni (215-mg kg -1 ) and Co (0.10.2-mg kg -1 ) found by Romero et al (2012) in citrus leaf samples collected from cultivated lands near mines, and lower than the concentrations of Pb 0.82.6-mgkg -1 ) and Cd (<0.01 mgkg -1 ) in our leaf samples. In spite of that, concentrations of Pb and Ni were still below toxic levels in citrus leaves mentioned by Aucejo et al (1997) which were 1020-mgkg -1 for Pb and 50100-mgkg -1 for Ni.…”

Section: Heavy Metals In Citrus Trees Grown On the Left Side Of The Hsupporting

confidence: 86%

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

et al. 2017

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A UTOMOBILE exhausts are considered the main source of air pollution with heavy metals. Airborne pollutants are precipitated on soils surrounding highways causing serious ecological hazards. The current study aimed at evaluating levels of Pb, Ni, Co and Cd in surface (015-cm) and subsurface (1540-cm) soils nearby Cairo-Alexandria agricultural highway, and their accumulation in plants grown thereon. Seven locations were sampled at interval distances 50 meters on both sides of the highway road near Toukh city (Qualubya Governorate). Cabbage and citrus plants were also sampled and separated into its parts. Results revealed that the investigated soils are contaminated with Pb, Ni and Cd. These contaminants were brought to the subsurface layers of the soil at relatively high concentrations. Total and DTPA-extractable contents of Pb and Ni in the top surface soil decreased with increasing the distance from the high way on both sides of the road. Moreover, concentrations of these metals in the cabbage parts were significantly correlated with their total and DTPA-extractable contents. However, Co and Cd in soils seemed to be not affected by the exhausts of the cars on the highway. Heavy metals decreased in cabbage parts as follows: root > stem > outer leaves > inner leaves > core. Calculated BAF values for Pb, Ni and Co were very low indicating that cabbage might be an excluder for these metals whereas, their transfer from roots to shoots (transfer factor, Ts) were high. Heavy metal concentrations in citrus decreased as leaves > flavedo > albedo > segments. Generally, concentrations of heavy metals in plants particularly Pb exceeded the permissible limits. 19

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Section: Heavy Metals In Citrus Trees Grown On the Left Side Of The Hsupporting

confidence: 86%

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

et al. 2017

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“…Furthermore, prior to 1991, no studies were found for soil Cu concentrations higher than 200 mg kg −1 . Also, studies influenced by mining activities were excluded (e.g., Romero et al 2012). From the studies shown in Table S1, only 21 of a total of 65 correspond to areas where different fruit trees are grown which are not vineyards.…”

Section: Soil Contamination In Fruit Tree Productive Systems By Coppementioning

confidence: 99%

Role of Leaf Litter on the Incorporation of Copper-Containing Pesticides into Soils Under Fruit Production: a Review

Schoffer

Sauvé

Neaman

et al. 2020

J Soil Sci Plant Nutr

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High soil copper may result in adverse effects on natural and agricultural systems. Copper-based pesticides have long been used for control of microbial diseases on fruit tree productive systems. Although copper is relatively safe from a human health management point of view, it can be accumulated in agricultural soils, affecting soil microbiota and litter degradation. The purpose of this review was to collect the available information to critically discuss the role that litter may play in fruit tree productive systems, in terms of copper incorporation into the soil, where this element is used as a pesticide. To achieve this objective, we focused our review on (1) soil contamination by copper-based pesticides in fruit production systems, (2) soil copper behavior, (3) effects of copper contamination on soil organisms, and (4) copper-litter relation in soil. From this review, we can suggest that (1) litter is the main sink of metals coming from atmospheric fallout because it is a good complexing agent of cations, (2) litter decomposition depends on its quality and in soil microbial activity, and (3) soil and litter microbial activity is negatively affected by soil copper enrichment. Thus, under uncontrolled applications of copper-based pesticides in fruit tree productive systems, copper soil enrichment will generate a decrease in microbial activity, diminishing litter breakdown and decreasing dissolved organic carbon formation. This process will also decrease the soluble copper incorporation into the soil; however, this assumption remains unevaluated.

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“…Another study realized on citrus in acidic soils affected by metal sulfide exploitation in the Rio Tinto mining district (Iberian Pyrite Belt, Spain) showed that despite the high availability of metals, Pb concentrations in citrus leaves were low compared to others metals . Calculation of the transfer factors showed the following absorption sequence: Zn > Ni > Cu > Pb, and no hazard was predicted even for soils with high metal contents .…”

Section: Resultsmentioning

confidence: 99%

“…The accumulation of heavy metals in fruit is variable because a large proportion of heavy metals absorbed by trees are stored in other organs, especially in leaves and stem. Olives low Cd and Pb accumulation may be explained by low translocation factor to the fruit within this tree species [44].…”

Section: Heavy Metals In Plant Edible Partsmentioning

confidence: 84%

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

Béjaoui

Kolsi-Benzina

Sappin‐Didier

et al. 2016

CLEAN Soil Air Water

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The agricultural lands surrounding the ancient mine site of Jebel Ressas (Tunisia) have been contaminated mainly due to the mining waste dumps left without environment protection measures. The metal contamination of agricultural soils and crops was studied to evaluate the local population health risk. The results show the soil Cd and Pb contamination over an area of 180 ha and up to 5 km distance from the dumps. The toxic metals contents in soil exceeded the maximum allowable Canadian limits for agricultural soils, reaching 231 and 20 100 mg kg−1 for cadmium (Cd) and lead (Pb), respectively, but decreasing with the distance from the dumps. Although a low solubility and availability of metals could be expected within the calcareous soils of this area, metals appeared to be absorbed by edible plants (fruits and vegetables). High contents in parsley and mallow were recorded, reaching up to four times the allowable limits (EC 1881/2006) for Cd, and 26 times for Pb. Local population exposure to metals by both soil ingestion and consumption of contaminated plants has been estimated and the health risk has been confirmed for farmlands inhabitants, especially for children. The major source of risk for the local population is dietary. Soil dust contribution to health risk is at the most 3.4% for adults and at the most 13.1% for children.

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Trace elements absorption by citrus in a heavily polluted mining site

Cited by 21 publications

References 42 publications

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

Role of Leaf Litter on the Incorporation of Copper-Containing Pesticides into Soils Under Fruit Production: a Review

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

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