&lt;b&gt;Metal concentration of liquid effluents and surroundings of a Pharmaceutical industry&lt;/b&gt;

Adeyeye, Emmanuel Ilesanmi; Faleye, F. J.; Omolaja, T.M.

doi:10.4314/bcse.v21i1.61366

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…Excess Zn interacts with Cu and Fe, decreasing their absorption. Excess Zn also decreases the functioning of the immune system [25]. This study revealed that levels of As in the local rice samples ranged from 0.006-0.086 mg/kg.…”

Section: Resultsmentioning

confidence: 75%

Impact of Heavy Metals Toxicity on Children and Adults from Local Rice Varieties of Northern Nigeria

Olaleye¹,

Adubiaro²,

Dauda³

et al. 2022

Pak J Anal Environ Chem

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The current study aimed to investigate the levels of heavy metals [cadmium (Cd), zinc (Zn), arsenic (As), lead (Pb), and mercury (Hg)] in local rice varieties named Jamila (JM), Santana (STN), Kwandala (KW), and Sipi (SP) collected from Danbatta town of Kano State, Northwestern Nigeria. The samples of local rice varieties were digested using HNO3 and HCl as digestion acids in a ratio of 2:1 (v/v). The digested samples were later analyzed for heavy metals using atomic absorption spectrophotometer. Moreover, the health risk assessment of heavy metals by the consumption of local rice varieties among local children and adults was also estimated based on estimated daily intake (EDI), target hazard quotient (THQ), hazard index (HI), and target cancer risk (TCR). The concentrations of Cd, Zn, and Pb dry weight basis observed in the range of 0.002- 0.06, 0.02-20.0, and 1.16-14.2mg/kg, respectively. Hg was detected only in SP rice variety with a concentration of 0.022 mg/kg. Whereas, As was detected in STN (0.086 mg/kg), KW (0.006 mg/kg), and SP (0.028 mg/kg). The resulting data showed that Cd, Zn, Hg, and As were within the maximum permissible limits set by regulatory bodies. The EDI values ranged from 1.21E-5 - 1.21E-1 and 5.0E-6 – 5.0E-2 for children (24 kg body weight) and adults (70 kg body weight), respectively. The data of the non-carcinogenic risk assessment indicated that the THQ values of Cd, Hg, and As were less than the maximum permissible limit of 1.00 for both children and adults. The HI data showed the potentially high possible health risk of the heavy metals by the consumption of the studied local rice varieties, with Pb being the major contributor. Similarly, resulting data of TCR for Cd and Pb showed high cancer risk upon the consumption of the studied local rice varieties over a long time.

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Section: Resultsmentioning

confidence: 75%

Impact of Heavy Metals Toxicity on Children and Adults from Local Rice Varieties of Northern Nigeria

Olaleye¹,

Adubiaro²,

Dauda³

et al. 2022

Pak J Anal Environ Chem

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“…The TDS and BOD levels werehigherthantheworkreported [25,26].Levelsofheavy metals (Pb, Cd, Zn, Cu, Cr and Ni) were withinthe standard limits [23,24]. However, levels of Pb, Cd,and Cr were lower than the levels reported [25,27] butthe Cu levels (0.26 mg/L) in this study are higher than(0.15 mg/L and 0.22 mg/L) for the work carried out [25,27].The levels of the metals were lower than similarwork carried out on heavy metals concentrations insomepharmaceuticalindustrialeffluents [28][29][30]…”

Section: Pharmaceuticalindustrymentioning

confidence: 86%

Effluents Composition: A Function of Industry Types in Southwestern Nigeria

Onwordi

Onianwa

2020

JRRS

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Introduction The rapid growth of industry types has resulted in increased discharge of effluents into water bodies. Aim The study aimed at establishing a pattern in effluent load according to industry types in Lagos metropolis. Materials and methods The industry types studied were pharmaceuticals, textiles, paints, foods and beverages, basic metals, and conglomerates. Effluent samples were collected bimonthly over a period of 20 months. Total Dissolved Solids (TDS), pH, alkalinity, total hardness, sulphate, phosphate, nitrate, Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and heavy metals were determined in the effluents according to APHA methods. Result Physicochemical characteristics (mg/L) of effluents from textile and pharmaceutical industries were 1160±890 and 630±260 for TDS, 316±280 and 230±97 for alkalinity, 60±32.and 53±44 for total hardness, 156±73 and 34±36 for sulphate, 1.0±0.3 and 0.7±0.6 for phosphate, 60.0±40.0 and 75±45 for nitrate, 1.8±1.7 and 1.3±1.2 for DO, 209±72 and 150±96 for BOD, 343±130 and 245±140 for COD, 0.7±0.3 and 0.5±0.2 for Zn, 1.5±1.0 and 0.3±1.1 for Cu, 2.5±0.3, 0.03±0.03 for Cr and corresponding pH was 10.6±1.1 and 5.5±1.2 respectively. Effluents from other industry types had lower levels of TDS, alkalinity, phosphate. Conclusion The results showed textile and pharmaceutical industries having higher pollution load in pH, BOD and COD.

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“…Thus, an accurate and precise determination of trace elements in foods, biological and environmental samples is very important in order to monitor trace element levels in these samples. The instrumental detection systems including UV-Vis spectrometry, atomic absorption spectrometry (AAS), and atomic emission spectrometry (AES) (11)(12)(13)(14) are widely used for the determination of trace elements. However, due to the limitation in detection limits of the instruments and the interference effects of the matrix components of the samples, these types of analyses are generally combined with a separation/ preconcentration system (15)(16)(17)(18).…”

Section: Introductionmentioning

confidence: 99%

Coprecipitation of Fe(III), Mn(II), Cu(II), Pb(II), Co(II), and Ni(II) With Ytterbium Hydroxide for Separation and Preconcentration Prior to Determination by FAAS

Soylak¹

2015

At.Spectrosc.

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A coprecipitation procedure for the separation and preconcentratiom of trace amounts of Fe(III), Mn(II), Cu(II), Pb(II), Cot(II), and Ni(II) is described. The analytical parameters including pH, ytterbium amount, centrifugation rate and time for the quantitative recovery of the analyte elements were optimized. The effect of matrix components of highly saline samples was also investigated. The limit of detection of the procedure was in the range of 2.1 µg/L for copper, 8.2 µg/L for nickel, and the preconcentration factor was 80. The accuracy of the method was checked by the addition recovery tests to real samples and by the analysis of the certified reference materials NIST SRM1570a Trace Elements in Spinach Leaves and SPS-WW2 Wastewater Level 2. The application of the method was performed for the determination of analyte elements in food and water samples.

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<b>Metal concentration of liquid effluents and surroundings of a Pharmaceutical industry</b>

Cited by 4 publications

References 6 publications

Impact of Heavy Metals Toxicity on Children and Adults from Local Rice Varieties of Northern Nigeria

Impact of Heavy Metals Toxicity on Children and Adults from Local Rice Varieties of Northern Nigeria

Effluents Composition: A Function of Industry Types in Southwestern Nigeria

Coprecipitation of Fe(III), Mn(II), Cu(II), Pb(II), Co(II), and Ni(II) With Ytterbium Hydroxide for Separation and Preconcentration Prior to Determination by FAAS

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