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Afridi, Hasssan Imaran; Kazi, Tasneem Gul; Kazi, G. H.; Jamali, Mohammad Khan; Shar, Ghulam Qadir

doi:10.1385/bter:113:3

Cited by 15 publications

(1 citation statement)

References 49 publications

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“…Lead, one among the heavy metals, is one of the most dangerous contaminant released into the natural waters from various industries such as mining and melting ferrous ores, oil refining, municipal wastes, paint and pigment production and battery manufacturing 1 . When it enters the human body through inhalation or dermal contact, it tends to accumulate in living tissues such as bone, brain, kidney and muscles leading to diseases such as anemia, nephropathy, blood and brain disorders and ultimately even cause death [2][3] .…”

Section: Introductionmentioning

confidence: 99%

Removal of Lead(II) from Wastewater Using Stishovite Clay

2016

Chem Sci Trans

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Systematic batch mode studies on adsorption of Pb(II) onto Stishovite clay were carried out as a function of parameters like initial metal concentration, contact time, pH and temperature. The Langmuir and Freundlich adsorption models were applied and the equilibrium data fitted well with both isotherms. The pseudo-second-order kinetic, Elovich, intraparticle diffusion models were tested for the kinetic study. The final results showed that the adsorption process under study could be best described by the pseudo second order equation. Intra particle diffusion studies showed mainly boundary layer effect. Thermodynamic parameters revealed that the adsorption to be spontaneous and endothermic.

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Section: Introductionmentioning

confidence: 99%

Removal of Lead(II) from Wastewater Using Stishovite Clay

2016

Chem Sci Trans

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Assessment of some potential harmful trace elements (PHTEs) in the borehole water of Greater Giyani, Limpopo Province, South Africa: possible implications for human health

Munyangane

Mouri

Kramers

2016

Environ Geochem Health

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The present investigation was conducted in order to evaluate the occurrence and distribution patterns of some potentially harmful trace elements in the borehole water of the Greater Giyani area, Limpopo, South Africa, and their possible implications on human health. Twenty-nine borehole water samples were collected in the dry season (July/August 2012) and another 27 samples from the same localities in the wet season (March 2013) from the study area. The samples were analysed for trace elements arsenic (As), cadmium (Cd), chromium (Cr), selenium (Se), and lead (Pb) using the inductively coupled plasma mass spectrometry technique. The average concentrations of As, Cd, Cr, Se, and Pb were 11.3, 0.3, 33.1, 7.1, and 6.0 µg/L in the dry season and 11.0, 0.3, 28.3, 4.2, and 6.6 µg/L in the wet season, respectively. There was evidence of seasonal fluctuations in concentrations of all analysed elements except for As, though Cd and Pb displayed low concentrations (<0.2 and <6.0 µg/L, respectively) in almost all sampled boreholes. Se and Cr concentrations slightly exceed the South African National Standard permissible limits for safe drinking water in few boreholes. A total of four boreholes exceeded the water quality guideline for As with two of these boreholes containing five times more As than the prescribed limit. The spatial distribution patterns of elevated As closely correlate with the underlying geology. The findings of this investigation have important implications for human health of the communities drinking from the affected boreholes.

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Population health risk via dietary exposure to trace elements (Cu, Zn, Pb, Cd, Hg, and As) in Qiqihar, Northeastern China

Luo

Meng

et al. 2016

Environ Geochem Health

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The estimated daily intakes (EDIs) of six trace elements (Cu, Zn, Pb, Cd, Hg, and As) in vegetables (leafy vegetable, i.e., bok choy, fruit vegetables, i.e., cucumber and tomato, and other categories, i.e., mushroom, kidney bean, and potato), cereals (rice and wheat flour), and meats (pork, mutton, and beef) most commonly consumed by adult inhabitants of Qiqihar, Northeastern China, were determined to assess the health status of local people. The average EDIs of Cu, Zn, Pb, Cd, Hg, and As were with 20.77 μg (kg bw) day of Cu, 288 μg (kg bw) day of Zn, 2.01 μg (kg bw) day of Pb, 0.41 μg (kg bw) day of Cd, 0.01 μg (kg bw) day of Hg, and 0.52 μg (kg bw) day of As, respectively, which are below the daily allowance recommended by FAO/WHO. However, the maximum EDIs of Pb and Cd were 4.56 μg (kg bw) day and 1.68 μg (kg bw) day, respectively, which are above the recommended levels [i.e., 3.58 μg (kg bw) day for Pb and 1.0 μg (kg bw) day for Cd] by FAO/WHO. This finding indicates that the potential health risk induced by daily ingestion of Pb and Cd for the local residents should receive a significant concern. Similarly, we detected elevated Pb and Cd concentrations, i.e., with average of 13.58 and 0.60 mg kg dw, respectively, in the adult scalp hairs. Consumption of rice, potato, bok choy, and wheat flour contributed to 75 and 82% of Pb and Cd daily intake from foodstuffs. Nevertheless, human scalp hair is inappropriate biological material for determination of the nutritional status of trace elements in this region.

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Untitled

Cited by 15 publications

References 49 publications

Removal of Lead(II) from Wastewater Using Stishovite Clay

Removal of Lead(II) from Wastewater Using Stishovite Clay

Assessment of some potential harmful trace elements (PHTEs) in the borehole water of Greater Giyani, Limpopo Province, South Africa: possible implications for human health

Population health risk via dietary exposure to trace elements (Cu, Zn, Pb, Cd, Hg, and As) in Qiqihar, Northeastern China

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