Comparative Study of Heavy Metals in Soil and Selected Medicinal Plants

Shah, Aamer Ali; Niaz, Abdul; Ullah, Nazeef; Rehman, Ali; Akhlaq, Muhammad; Z̲ākir, Muḥammad; Khan, Muhammad Suleman

doi:10.1155/2013/621265

Cited by 98 publications

(81 citation statements)

References 3 publications

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“…WHO's permissible limit of Ni in medicinal plant is 1.5 mg/kg (WHO, 2005). After comparing, metal limits in different parts of R. chalepensis with those by WHO, Ni concentrations in most samples of R. chalepensis are below the permissible limit.For medicinal plants, the WHO limits have not been established yet for Fe, whereas the WHO recommended level of Fe in plants is 20mg/kg(Shah et al, 2013). Moreover, the permissible limit for Fe in edible plants is 20 ppm(FAO/WHO, 1984).…”

mentioning

confidence: 99%

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Massadeh

El-Rjoob

Omari

2016

Soil and Sediment Contamination: An International Journal

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Different parts of Ruta chalepensis L. medicinal plant and soil samples collected from three zones in Jordan (Irbid, Al-Mafraq and Ma'an) were analyzed for determination of Pb, Cu, Zn, Cd, Ni and Fe by atomic absorption spectrometry. Heavy metal levels in washed and unwashed parts of R. chalepensis were evaluated and compared statistically. Results show that there was a variation in heavy metal concentrations related to washed and unwashed parts of R. chalepensis in the three zones. Moreover, Pb, Zn, Cu, Cd, and Ni were concentrated in the following order:Two standard reference materials of plant (SRM 1790a; spinach, CRM 281; rye grass) and a standard reference material of soil (GBW 07406) were examined to validate the method used.Results indicate that high recoveries were obtained. Significant variation existed in metal content in different parts of Ruta chalepensis L. for the various locations (P ≤ 0.05).

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mentioning

confidence: 99%

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Massadeh

El-Rjoob

Omari

2016

Soil and Sediment Contamination: An International Journal

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“…There was no difference between non-branded tea and imported branded tea in terms of Mn content. The permissible limit of manganese in medicinal plants is estimated to be 200 mg/kg (Shah et al, 2013). In this study, the concentration of manganese was recorded above the limit in 70% of the samples.…”

Section: Essential Elementsmentioning

confidence: 53%

Dietary Content and Potential Health Risks of Metals in Commercial Black Tea in Kampala (Uganda)

Bamuwamye¹,

Ogwok²,

Tumuhairwe³

et al. 2017

JFR

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Tea (Camellia sinensis (L.) Kuntze) is among the most widely consumed non-alcoholic beverages. It is a rich source of essential dietary elements mainly potassium and manganese. Tea may also contain toxic metals such as cadmium and lead which pose a threat to human health because of their toxicity. Twenty samples of commercial black tea in Kampala city were randomly obtained and analysed for potassium, sodium, aluminium, arsenic, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead and zinc using Atomic Absorption Spectrophotometry. Human health risks due to exposure to toxic elements from daily consumption of tea were determined using incremental lifetime cancer risk and non-cancer hazard quotient. Metal contents of black tea sold in Kampala were below international regulatory limits. The estimated daily intake of the elements in two grams of black tea was below the recommended values. Hazard quotient and hazard index were within acceptable range. Total cancer risk levels for all the teas were also within United States Environmental Protection Agency (USEPA) acceptable range. Daily consumption of one cup containing two grams of black tea over a lifetime will promote consumer overall health and wellbeing.

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“…The Zn concentration in the leaves of all the samples of R. chalepensis in this study ranges from 44.5-63.9 mg/kg and WHO recommended limit of Zn in plants is 50 mg/kg [31]. This indicates that the Zn concentrations in the leaves of R. chalepensis are below the permissible limit in Kality and Holeta samples but above the permissible limit in Alem Bank and Worabe samples.…”

Section: Comparison Of Selected Metal Concentrations (Mg/g Dry Weighmentioning

confidence: 55%

Levels of selected metals in the leaves of Ruta chalepensis L. (Rue) collected from four different areas of Ethiopia

Chandravanshi¹,

Yohannes²

2018

Bull. Chem. Soc. Eth.

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ABSTRACT. The objective of this study was to determine the level of selected metals in the leaves of Ruta chalepensis L. (Rue) cultivated in Ethiopia. Rue leaves samples were randomly collected from four different parts of Ethiopia (Kality and Alem Bank from Addis Ababa Administration, Holeta (Oromia Region) and Worabe (South Nations and Nationalities Peoples Region)). A 0.5 g Rue sample was digested with 3.0 mL of 69.5% HNO3 and 1.0 mL 70% HClO4 and the levels of selected metals were determined by flame atomic absorption spectrometry. The validity of the optimized procedure was evaluated by analyzing the digest of the spiked samples with standard solution and the percentage recoveries varied from 92.0 to 102%. The levels of metals determined in mg/kg dry weight were in the ranges Ca (1872-3077), Zn (44.5-64.0), Cu (

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Comparative Study of Heavy Metals in Soil and Selected Medicinal Plants

Cited by 98 publications

References 3 publications

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Assessment of Heavy Metals in Different Parts of Ruta chalepensis L. Rutaceae Medicinal Plant and Soil Samples Collected from Three Selected Zones in Jordan

Dietary Content and Potential Health Risks of Metals in Commercial Black Tea in Kampala (Uganda)

Levels of selected metals in the leaves of Ruta chalepensis L. (Rue) collected from four different areas of Ethiopia

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