2018-8-31 · Northern Nigeria. A study aimed at assessing heavy metal bioaccumulation in spinach, jute mallow, and tomato in farms within Kaduna State revealed that the concentrations of heavy metals in agricultural soil samples were generally higher than the World Health Organization/Food and Agriculture Organization of the United Nations (WHO/FAO) maximum
دردشة على الإنترنتIn the results, heavy metals in the soil and pH decreased with increase in the distance away from the quarry site with Pb having the highest concentration of
دردشة على الإنترنت2021-9-26 · Cn = concentrationof metal in the soil, Bn is the geochemical background for the element and 1.5 is a constant. 2.8. Human Health Risk Assessment of Heavy Metals The estimated daily intake of metals is used to ascertain the health risk related to the intake of heavy metals from food crops, water, and exposure to soil. The Es-
دردشة على الإنترنتAbstract: The impact of previous operations on the environ ment was assessed by deter mining heavy metal contents of soil. (topsoil, 0-15 cm and subsoil,15
دردشة على الإنترنت2021-7-18 · The level of heavy metals (Fe, Cu, As, Pb, Cd, Mg, Ca, Hg, Ni, Cr, Zn, Ag, Co, Mo, Se and Al) in soils and food crops (okra, cassava and rice) cultivated within selected mining sites in Ebonyi State, Nigeria were determined using FS240AA Atomic Absorption Spectrophotometer (AAS) according to the method of American Public Health Association (APHA).
دردشة على الإنترنتcontamination of the heavy metals in all depth in the quarry site with distance 0 km is Fe>Zn>Cu>Cr>Pb>Mn>Cd. Considering the spatial variation (distance) of about 1 km from the quarry site, the heavy metal concentration values in the soil sample at a depth of 0-5 cm ranged from 0.81 ppm Mn to 136.4 ppm Fe.
دردشة على الإنترنتHeavy metal concentrations in soils, plant leaves and crops grown around dump sites in Lafia Metropolis, Nasarawa State, Nigeria January 2012 Advances in
دردشة على الإنترنت2020-3-1 · Heavy metals health risk assessment for population via consumption of food crops and fruits in Owerri, South Eastern, Nigeria Chem. Cent. J. , 6 ( 2012 ) , p. 77
دردشة على الإنترنت2019-4-1 · Heavy metals and metalloids (e.g., Hg, As, Pb, Cd, and Cr) can disturb human metabolomics, contributing to morbidity and even mortality. Therefore, this review focuses on and describes heavy metal contamination in soil–food crop subsystems with
دردشة على الإنترنتheavy metals such as Iron (Fe), Copper (Cu), Zinc (Zn), Lead (Pb) Nickel (Ni), Selenium (Sn), Mercury (Hg), Chromium (Cr), Arsenic (As), and Aluminum (Al) among others. When such water is used for cultivation of crops for a long period, these heavy metals may accumulate in soil, become toxic to the plants and also cause
دردشة على الإنترنتAbstract. The study assessed the concentration of heavy metals in soil and plants around a quarry site in Southwestern Nigeria. Sample plots were established in a systematic method along a line transect at increasing distance of 1, 50, 100, 150, 200, 250
دردشة على الإنترنت2021-9-26 · Cn = concentrationof metal in the soil, Bn is the geochemical background for the element and 1.5 is a constant. 2.8. Human Health Risk Assessment of Heavy Metals The estimated daily intake of metals is used to ascertain the health risk related to the intake of heavy metals from food crops, water, and exposure to soil. The Es-
دردشة على الإنترنت2020-10-6 · Effects of heavy metals on the Air Pollution Tolerance Indices (APTI) of five medicinal plants growing within quarry site in Ishi-Agu, Ebonyi State, Nigeria were studied. Following laboratory analysis of the leaves of the plants for metal load and four biochemical parameters of APTI computation.
دردشة على الإنترنت2019-11-26 · quarry site with distance 0 km is Fe>Zn>Cu>Cr>Pb>Mn>Cd. Considering the spatial variation (distance) of about 1km from the quarry site, the heavy metal concentration values in the soil sample at a depth of 0-5cm ranged from 0.81ppm Mn to 136.4ppm Fe. At 5-10cm, the heavy metal concentration values ranged from 0.66ppm Cr to
دردشة على الإنترنت2021-7-18 · The level of heavy metals (Fe, Cu, As, Pb, Cd, Mg, Ca, Hg, Ni, Cr, Zn, Ag, Co, Mo, Se and Al) in soils and food crops (okra, cassava and rice) cultivated within selected mining sites in Ebonyi State, Nigeria were determined using FS240AA Atomic Absorption Spectrophotometer (AAS) according to the method of American Public Health Association (APHA).
دردشة على الإنترنت2020-3-1 · Heavy metals health risk assessment for population via consumption of food crops and fruits in Owerri, South Eastern, Nigeria Chem. Cent. J. , 6 ( 2012 ) , p. 77
دردشة على الإنترنت2016-2-27 · Nigeria is one of the most populated black nation in the world with a population of about 170 million. Over the years, potable water source which is one of the basic essential requirements for healthy living has been challenging due to inadequate controlled anthropogenic activities and by lesser extent natural conditions. This paper reviews the various potable water
دردشة على الإنترنت2019-4-1 · Heavy metals and metalloids (e.g., Hg, As, Pb, Cd, and Cr) can disturb human metabolomics, contributing to morbidity and even mortality. Therefore, this review focuses on and describes heavy metal contamination in soil–food crop subsystems with
دردشة على الإنترنتheavy metals such as Iron (Fe), Copper (Cu), Zinc (Zn), Lead (Pb) Nickel (Ni), Selenium (Sn), Mercury (Hg), Chromium (Cr), Arsenic (As), and Aluminum (Al) among others. When such water is used for cultivation of crops for a long period, these heavy metals may accumulate in soil, become toxic to the plants and also cause
دردشة على الإنترنت2016-10-26 · Heavy metals affect the natural population of bacteria in the soils. This leads to loss of bacterial species responsible for nutrient cycling with a consequent negative effect on ecosystem functioning . To survive in metal polluted sites, some bacteria have devised various ways to withstand the potentially deleterious conditions.
دردشة على الإنترنت2020-10-6 · Effects of heavy metals on the Air Pollution Tolerance Indices (APTI) of five medicinal plants growing within quarry site in Ishi-Agu, Ebonyi State, Nigeria were studied. Following laboratory analysis of the leaves of the plants for metal load and four biochemical parameters of APTI computation.
دردشة على الإنترنت2020-3-1 · Heavy metals health risk assessment for population via consumption of food crops and fruits in Owerri, South Eastern, Nigeria Chem. Cent. J. , 6 ( 2012 ) , p. 77
دردشة على الإنترنت2012-8-1 · This study assessed lead, cadmium, and nickel level in food crops, fruits and soil samples from Ohaji and Umuagwo and Owerri in South Eastern Nigeria and estimated the potential health risks of metals. Samples were washed, oven-dried at 70–80°C for 24 h and powdered. Samples were digested with perchloric acid and nitric acid. Metals were analysed
دردشة على الإنترنت2020-5-21 · Ayeni, O. Assessment of heavy metals in wastewater obtained from an industrial area in Ibadan, Nigeria. RMZ – Materials and the Geoenvironment 61 , 19–24 (2014). CAS Google Scholar
دردشة على الإنترنت2014-3-31 · The co-existence of toxic heavy metals and hydrocarbons (HCs) at many of the mechanics contaminated sites all over Nigeria and in other developing countries poses a severe threat to the environment. In fact, the signific-ance of trace elements in soil chemistry is increasingly becoming an issue of global concern especially as soil
دردشة على الإنترنتThe aim of this study was to investigate and compare the heavy metal (HM) concentrations of selected vegetables harvested from crude oil-producing Rivers State and non-oil-producing Enugu State in Nigeria. Four vegetables; Telfaria occidentialis, Talinum triangulare, Ocimium gratissimum, and Murraya koenigii, were obtained from local farms in local government areas
دردشة على الإنترنت2016-2-27 · Nigeria is one of the most populated black nation in the world with a population of about 170 million. Over the years, potable water source which is one of the basic essential requirements for healthy living has been challenging due to inadequate controlled anthropogenic activities and by lesser extent natural conditions. This paper reviews the various potable water
دردشة على الإنترنتHeavy metal concentration in soil: Results showed that the concentrations of heavy metals (Fe, Zn, Cd and Pb) in the soil at the two dumpsites were significantly (p = 0.05) higher than the controls (Fig. 3(a-d). Highest concentration of heavy
دردشة على الإنترنت2018-3-20 · The smelting process in metal mines can produce large amounts of waste, resulting in high accumulation of heavy metals in the soil and in the river and underground water surrounding the mining area. 1 Similarly, the levels of heavy metal contamination in the soil, air, river, and crops from mining-affected areas are reportedly higher than those in non-mining
دردشة على الإنترنت2014-8-12 · Soils polluted with heavy metals have become common across the globe due to increase in geologic and anthropogenic activities. Plants growing on these soils show a reduction in growth, performance, and yield. Bioremediation is an effective method of treating heavy metal polluted soils. It is a widely accepted method that is mostly carried out in situ; hence it is
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