Assessment of lead, copper and zinc contamination of soil from University of Cape Coast School of Agricultural farmland, Ghana

Bentum, J. K.; Adotey, Joseph; Koka, J. K.; Koranteng-Addo, E. J.; Yeboah, Adomah; Boamponsem, L. K.

doi:10.4314/ijbcs.v5i4.33

Cited by 1 publication

(1 citation statement)

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“…It is affected by atmospheric depositions of heavy metals which may happen by the heavy metal emission from petrol engine motor vehicles and leads to bioaccumulation of the heavy metals in the plant (as heavy metals could not travel more to the other parts of plant after absorption by root). Heavy metal contamination of soil and contaminated wastewater used for irrigation also plays a vital role in agricultural heavy metal contamination [14, 15]. Heavy metal contaminated HS may affect nutrition by displacing biologically useful metals, such as calcium and zinc, and can cause serious adverse health effects including carcinogenesis and reproductive effects [16, 17].…”

Section: Introductionmentioning

confidence: 99%

Heavy metal content of herbal health supplement products in Dubai – UAE: a cross-sectional study

Abdulla

Ádám

Blair

et al. 2019

BMC Complement Altern Med

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BackgroundLead, mercury, cadmium, chromium, and arsenic intoxication have been associated with the use of health supplement (HS) products. The aim of this study is to estimate the concentration of heavy metals in HS products that are on sale in Dubai, United Arab Emirates, premises and to compare estimated daily metal intake with regulatory standards.MethodsDubai-area premises selling HS products were identified by searching the Dubai Municipality database to identify all pharmacies, para-pharmacies and nutrition and healthcare shops. A total of 859 premises were identified in the Deira and Bur-Dubai areas. Data collection was performed between September 1 and December 12, 2016. During that period, all premises that had been identified within Dubai were visited and samples for laboratory testing were collected.ResultsA total of 200 HS products were tested for lead, mercury, cadmium, chromium and arsenic. High proportion of samples were found to contain metals less than the limits of the detection (LOD) of the method. It was found that 93% of products contained Arsenic (As) < LOD, 94.5% of lead (Pb) < LOD, 100% of Cadmium (Cd) < LOD, 99% of Mercury (Hg) < LOD and 23.5% of Chromium (Cr) < LOD. Using the single imputation method to account for LOD, estimates for the average daily intake of lead was 0.88 μg compared to the tolerable daily intake (TDI) of 20 μg, daily intake of mercury was 0.09 μg (TDI = 20 μg), daily intake of cadmium was 0.83 μg (TDI = 6 μg) while for arsenic it was 0.92 μg compared to the tolerable daily intake of 10 μg. The average daily intake of chromium was 7.57 μg with no internationally established TDI. Assuming users followed the manufacturers’ instructions, daily intake of arsenic, lead and mercury would not exceed TDI for any of the 200 products. However, the daily intake of cadmium exceeded or approximated the TDI for three products.ConclusionsIn this study we found low levels of metals in the products that were available for sale in Dubai. With few exceptions, if the products were used according to the suppliers’ instructions, average daily intake of heavy metals will be well below the recommended tolerable daily intakes.

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Section: Introductionmentioning

confidence: 99%