Comparison of three mixed acid digestion methods for the accurate determination of heavy metal concentration in contaminated soil

2015 ◽  
pp. 21-26
Keyword(s):  
Heavy Metal ◽  
Metal Concentration ◽  
Contaminated Soil ◽  
Accurate Determination ◽  
Heavy Metal Concentration ◽  
Acid Digestion ◽  
Mixed Acid ◽  
Digestion Methods

scholarly journals Determination of Heavy Metals in Soil and Plants along Major Road in Hong Local Government Area, Adamawa State, Nigeria

2019 ◽  
pp. 1-10
Author(s):  
Nachana’a Timothy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Concentration ◽  
Heavy Metal Concentration ◽  
Soil Samples ◽  
Health Concern ◽  
Major Road ◽  
Roadside Soils ◽  
The Road

Heavy metal concentration in roadside soil and plants are increasingly becoming of health concern. This work determined the concentration of selected heavy metals (Cd, Pb, Zn, Cr, Fe, Mg, Mn, Co, Ni and Cu) in roadside soils and plants samples from selected sites (Plaifu, Shiwa, Fadama-rake and Damdrai) along major road in Hong. Soil samples were taken 10 m, 20 m and 30 m away from the edge of the road at the  depth of 0-10 cm, 10-20 cm and 20-30 cm. Plant samples were randomly collected within the vicinity where the soil samples were taken and were analysed using Atomic Absorption Spectrophotometer. The result revealed the trend in soil heavy metal concentration was Fe > Mn > Mg > Pb > Zn > Ni > Co > Cu > Cr > Cd and for plant the trend was Fe > Mn > Mg > Zn > Pb > Ni > Cu > Cd > Co > Cr. The concentrations decreased with increasing distance away from the edge of the road as well as with depth at which the soil sample were taken. The transfer factor showed that the concentration of Zn, Mn, Cu and Mg were greater than 1, which shows that plant were enriched by Zn, Mn, Cu and Mg from the soil. Mg and Cd equal to 1 at Plaifu and Damdrai. Most of the values of TF at the study area super pass 0.5, which implies that generally, the ability of bioaccumulation of these heavy metals in examined plants were relatively high.

Neutron Activation for Analyzing Elements in Material

2016 ◽  
Vol 675-676 ◽  
pp. 700-703 ◽  
Author(s):  
Ammara Ittipongse ◽  
Ratchai Fungklin
Keyword(s):  
Heavy Metal ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Metal Concentration ◽  
Toxic Metal ◽  
Heavy Metal Concentration ◽  
Great Sensitivity ◽  
Nuclear Technique

Neutron activation analysis (NAA) is a method of nuclear technique to detect with great sensitivity the presence and concentrations of elements in materials, without, in most cases, destroying the sample analyzed. Therefore, this study aimed to study the technique of Neutron Activation Analysis (NAA). Accordingly, instrument (INAA) has been in this analyzed for determination of heavy toxic metal (Cd, Co, Fe, Pb, Cr, Zn) and others in vegetables samples. The results of heavy metal concentration analyses showed that Co, Fe, Cr could be analyzed by NAA.

scholarly journals FITOREMEDIASI TANAH TERCEMAR LOGAM TIMBAL (Pb) MENGGUNAKAN TANAMAN LIDAH MERTUA (Sansevieria trifasciata) DAN JENGGER AYAM (Celosia plumosa)

2018 ◽  
Vol 3 (2) ◽  
pp. 62-69
Author(s):  
Rhenny Ratnawati ◽  
Risna Dwi Fatmasari
Keyword(s):  
Heavy Metal ◽  
Metal Concentration ◽  
Contaminated Soil ◽  
Heavy Metal Concentration ◽  
Sampling Time ◽  
Species Variation ◽  
Soil Lead ◽  
Plant Parts ◽  
High Concentrations ◽  
Pb Concentration

Soil is a very influential medium of human survival. One of the parameters affecting soil quality is heavy metal concentration in soil, especially heavy metal of lead (Pb). High concentrations of Pb in the soil can treated with phytoremediation techniques. The aims of this research are: 1. To investigate the reduction of heavy metal Pb in the soil by phytoremediation, 2. To investigate the effectiveness of plants to absorb heavy metal Pb in the soil, and 3. To investigate the distribution of Pb concentration in the plant parts. The study variables used in this research are species variation of plants Sansevieria trifasciata and Celosia pulmosa. Phytoremediation test of Pb heavy metal contaminated soil was carried out for 4 weeks with sampling time on days 0, 7, 14, 21, and 28. The parameters analyzed of this research is Pb concentrations on soil and plant parts, namely roots, stems, leaf. Physical observations of plants were also carried out to support this research. The results show that the reactor with Sansevieria trifasciata had a higher effectiveness of removal of Pb in 81.08% (112 mg/kg) than Celosia pulmosa in 59.63% (293 mg/kg). The effectiveness of the absorption of Sansevieria trifasciata was higher 70.50% (418 mg/kg) than Celosia pulmosa 52.40% (311 mg/kg). The distribution of Pb concentrations in the plant of Sansevieria trifasciata and Celosia pulmosa is almost the same, with the most concentration being in the root part and at least scattered in the leaves of the plant. Keywords: Celosia pulmosa, Soil, Lead, Phytoremediation, Sanseviera trifasciata.

scholarly journals Determination of Spatiotemporal Variations in Heavy Metal Concentration through Orontes River

2017 ◽  
Vol 5 (9) ◽  
pp. 1086 ◽  
Author(s):  
Ece Kılıç ◽  
Mehmet Fatih Can
Keyword(s):  
Heavy Metal ◽  
Metal Concentration ◽  
Heavy Metal Concentration ◽  
Trend Test ◽  
Multivariate Statistical ◽  
Quality Of Water ◽  
Important Concern ◽  
Study Results ◽  
Adequate Quality

Water quality in surface waters is an important concern since it directly affects public health. Therefore, to provide adequate quality of water, monitoring studies have been conducted all around the world. In this study, multivariate statistical methods were used to understand the spatial and temporal changes in heavy metal concentration (including As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Zn) through Orontes River. Monitoring study results belonging to 5 different stations in Orontes River was obtained from State of Hydraulic Works and evaluated according to Box and Whisker plots, two-way PERMONAVA analysis and Mann-Kendall trend test. Results indicated that heavy metal concentrations has been increasing year by year. However, there is no significant spatial change in heavy metal concentration and rather homogenous distribution was observed through Orontes River. On the other hand, Iron (Fe) concentration in river was seasonal depended with no significant trend.

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