Advances in Chemical Research最新文献

Heavy Metal Concentration and Health Risk Assessment of Selected Fruits Sold in Jos Metropolis 乔斯市部分水果重金属浓度及健康风险评价

Advances in Chemical Research Pub Date : 2021-02-27 DOI: 10.21926/ACR.2102013

B. David, Adeniyi Olufunso, A. Adebayo, Ariwoola Oluwole

{"title":"Heavy Metal Concentration and Health Risk Assessment of Selected Fruits Sold in Jos Metropolis","authors":"B. David, Adeniyi Olufunso, A. Adebayo, Ariwoola Oluwole","doi":"10.21926/ACR.2102013","DOIUrl":"https://doi.org/10.21926/ACR.2102013","url":null,"abstract":"The present study investigated the level of heavy metals in selected fruits sold commonly in Jos, Nigeria. The fresh fruits (Avocado pear, Black currant, Egg Plant, Golden melon, and Soursop) were purchased from five major markets (Terminus, Farin Gada, Building materials, Bukuru, and Fobur) in Jos. Each fruit sample was collected in triplicate and analyzed using standard procedures. The concentration of heavy metals (Fe, Cu, As, Cd, Zn, Pb, Mn, and Cr) was determined using Graphite Furnace Atomic Absorption Spectrophotometer. The data obtained were subjected to descriptive statistics and then compared with the WHO/FAO acceptable limits. The results revealed low concentrations of Fe (0.125–0.241 mg/kg), Cu (0.015–0.020 mg/kg), Zn (0.925–1.135 mg/kg), Mn (0.025–0.045 mg/kg), Cr (0.018–0.029 mg/kg), and Pb (0.031–0.055 mg/kg) in all five fruits studied. Only cadmium exceeded the acceptable limit of 0.020 mg/kg stipulated by WHO/FAO, with the highest cadmium concentration of 0.085 mg/kg detected in Soursop. Accumulation of cadmium in the kidneys leads to kidney damage and osteoporosis. The Estimated Daily Intake (EDI) values of all metals were lower than the recommended tolerable daily intake values, except for arsenic, for which the hazard quotient greater than 1 was also detected in all the fruits studied. This could be a result of pollution in the environment of the regions where the fruits were cultivated. Long-term exposure to inorganic arsenic causes cancer. Environmental pollution raises health challenges to the consumers and therefore, drastic measures should be implemented to control it.","PeriodicalId":7223,"journal":{"name":"Advances in Chemical Research","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87064172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Theoretical investigation of the single and double ionization spectra of M(CO)6, M=W M(CO)6, M=W的单电离和双电离光谱的理论研究

Advances in Chemical Research Pub Date : 2020-12-14 DOI: 10.21926/acr.2004010

B. Nikoobakht, G. Malli, M. Siegert

引用次数: 0

A Methodology to Estimate Net Proton: Phosphorus Co-Adsorption Ratios for Acidic Soils 一种估算酸性土壤净质子:磷共吸附比的方法

Advances in Chemical Research Pub Date : 2020-04-13 DOI: 10.21926/acr.2002005

P. Taglieri, P. Milham, P. Holford, R. Morrison

{"title":"A Methodology to Estimate Net Proton: Phosphorus Co-Adsorption Ratios for Acidic Soils","authors":"P. Taglieri, P. Milham, P. Holford, R. Morrison","doi":"10.21926/acr.2002005","DOIUrl":"https://doi.org/10.21926/acr.2002005","url":null,"abstract":"Despite extensive research, the behaviour of the key nutrient element, phosphorus (P), in soil is not yet fully understood. This study focussed on the outstanding issue of the co-adsorption of protons (H+) and P by soils. We developed a congruent set of measures to determine the net H+:P co-adsorption ratio and tested it on goethite, for which a ratio of 1.6:1 had been estimated under CO2-free conditions for additions of NaH2PO4. Under our conditions, and using additions of KH2PO4, the net H+:P co-adsorption ratio was estimated to be 1.44:1, i.e., in passable agreement with the published value. Application of the protocol to acidic soils resulted in a net H+:P co-adsorption ratio of 1.92:1, and substitution of H3PO4 for KH2PO4 gave a ratio of 1.96:1. These ratios for soils differ significantly from that for goethite. The soils for which we estimated net H+:P co-adsorption ratios had a wide range of properties and two had received previous applications of P fertiliser (Ca(H2PO4)2), which does not appear to have affected the net H+:P co-adsorption ratios. The H+:P co-adsorption ratio method could benefit from refinement, and further study is required to explore how these findings may apply to commercial P fertilisers under field conditions.","PeriodicalId":7223,"journal":{"name":"Advances in Chemical Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90872198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Acknowlegement to Reviewers of Advances in Chemical Research in 2020 对2020年化学研究进展审稿人的答谢

Advances in Chemical Research Pub Date : 2020-01-01 DOI: 10.21926/acr.2101011

Advances in

引用次数: 0

Vanadium: Biological, Environmental, and Engineering Aspects 钒:生物、环境和工程方面

Advances in Chemical Research Pub Date : 2019-12-18 DOI: 10.21926/acr.2001002

D. Rehder

引用次数: 1

Personal Observations on the Critical and Unusual Role of Palladium Environment on Reaction Pathways 钯环境对反应途径的重要和特殊作用的个人观察

Advances in Chemical Research Pub Date : 2019-10-10 DOI: 10.21926/acr.2001003

J. Muzart