Particle Size Distribution of Heavy Metals and Magnetic Susceptibility in an Industrial Site

2018 ◽  
Vol 100 (5) ◽  
pp. 708-714 ◽  
Author(s):  
Shamsollah Ayoubi ◽  
Zeynab Soltani ◽  
Hossein Khademi
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Magnetic Susceptibility ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Industrial Site

scholarly journals Particle-size distribution and heavy metals accumulation in soils of Rostov-on-Don

2019 ◽  
Vol 368 ◽  
pp. 012009
Author(s):  
O S Bezuglova ◽  
S N Gorbov ◽  
A A Okolelova ◽  
N V Salnik ◽  
S S Tagiverdiev ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Heavy Metals Accumulation ◽  
Metals Accumulation

Dynamic behavior of suspended pollutants and particle size distribution in highway runoff

2002 ◽  
Vol 46 (11-12) ◽  
pp. 413-418 ◽  
Author(s):  
H. Furumai ◽  
H. Balmer ◽  
M. Boller
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Suspended Solids ◽  
Dynamic Change ◽  
First Flush ◽  
Highway Runoff ◽  
Runoff Rate ◽  
Highway Drainage

Continuous runoff quality monitoring was conducted for one month at urban highway drainage with an area of 8.4 ha. Dynamic change of suspended solids and heavy metal concentrations were investigated during first flush periods, taking the particle size distribution into consideration. Except for Pb, the concentrations of TSS and heavy metals in runoff were within the range of the EMC reported in recent highway runoff research. Particle-bound heavy metals (Zn, Pb, and Cu) accounted for more significant pollutant loads than soluble fractions. Their content decreased with increasing total SS concentration in runoff samples. The results of particle size distribution (PSD) analysis of runoff samples indicate that high TSS concentration samples contained coarser particles. Based on the PSD results, a stepwise wash-off phenomenon of TSS under varying runoff rate conditions was explained by the different washoff behavior of fine (< 20 mm) and coarser particles.

Particle size distribution of aerosols and associated heavy metals in kitchen environments

2007 ◽  
Vol 142 (1-3) ◽  
pp. 141-148 ◽  
Author(s):  
Sandeep Gupta ◽  
Arun Srivastava ◽  
V. K. Jain
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution

Particle size distribution of heavy metals in the urban air of Seoul, Korea

1989 ◽  
Vol 12 (3) ◽  
pp. 214-218 ◽  
Author(s):  
Donghun Sohn ◽  
Moonyoung Heo ◽  
Choonwon Kang
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Urban Air

scholarly journals Agronomic potential value of household urban solid wastes by composting and composts quality assessment

2020 ◽  
Vol 9 (2) ◽  
pp. 1-8
Author(s):  
KKA Alate ◽  
G Mawussi ◽  
KD Ayisah ◽  
K Sanda
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Organic Matter ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Poultry Manure ◽  
Solid Wastes ◽  
Mucuna Pruriens ◽  
Mineral Fertilizers ◽  
Phytotoxicity Test

Using composting technology, the biodegradable fraction of solid wastes collected from Agbalepedogan district in Lomé (Togo) was transformed into composts with no phytotoxicity suitable for use in agriculture. The household urban solid wastes were mixed with poultry manure and Mucuna pruriens leaves in appropriate percentages and transformed into composts. The composting process was monitored by temperature, pH and C/N ratio controlling. The composts quality was appreciated by phytotoxicity test, particle size distribution, contents of nitrogen, phosphorus, potassium, organic matter and trace elements. The results showed that composts particle size distribution presented four fractions (>10 mm, 5-10 mm, 2-5 mm and ≤2 mm) whose average percentages are respectively 9.04±0.2%; 10.71±0.2%; 12.68±0.4% and 67.53±0.6%, respectively. Composts produced contained 1.02±0.1% - 2.72±0.2% of nitrogen, 1.35±0.3% - 2.70±0.4% of phosphorus, 1.31±0.2% - 1.72±0.3% of potassium and 23.50±0.4% - 37.75±0.5% of organic matter. The pH in final composts were between 8.50±0.2 and 9.00±0.3 while C/N ratio varying from 8.06±0.2 to 13.13±0.2. The concentrations of some heavy metals in final products were 79.8±1.7 - 140.2±1.6 mg/kg.dm of zinc, 27.1±1.01 - 76.6±1.03 mg/kg.dm of copper, 2.07±0.33 - 9.19±0.22 mg/kg.dm of lead, 4.13±0.16 - 11.05±0.36 mg/kg.dm of nickel and 0.79±0.02 - 2.15±0.03 mg/kg.dm of cadmium. These concentrations were lower than the limited value for heavy metals prescribed by French and US EPA regulation for organic and organic-mineral fertilizers. Int. J. Agril. Res. Innov. Tech. 9(2): 1-8, December 2019

Radiocarbon Dating of Agrarian Terraces by Means of Buried Soils

Radiocarbon ◽  
2016 ◽  
Vol 58 (2) ◽  
pp. 345-363 ◽  
Author(s):  
Arnald Puy ◽  
Andrea L Balbo ◽  
Olaf Bubenzer
Keyword(s):  
Particle Size ◽  
Magnetic Susceptibility ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Effect Size ◽  
Radiocarbon Dating ◽  
Buried Soils ◽  
Organic Fraction ◽  
Radiocarbon Dates

AbstractSoils buried under terrace fills have been widely used to date the construction of ancient agrarian terraces. The reliability of the obtained radiocarbon dates entirely depends on the degree of preservation and isolation of the Ab horizons and on the amount of embedded older carbon. To assess these caveats, we analyzed 14 14C dates (11 on charred material and 3 on the bulk organic fraction) obtained from buried soils under Andalusi terrace fills in Ricote, Spain (AD 711–1492). The preservation of Ab horizons was assessed through bulk analyses [particle size distribution (PSD), carbon analyses, magnetic susceptibility (Mag Sus)] and statistics [Welch’s ANOVA, MANOVA (Wilk’s lambda) and effect size tests]. The effects of older carbon were quantified through the systematic dating of Ab horizons within the earliest terrace cluster of Ricote. Our results show that (1) Ab horizons were not disturbed nor mixed with the terrace fills above; (2) the dates determined from the bulk organic fraction were statistically significantly older than those provided by the charred material, probably due to the higher stability of the microcharcoal fraction; and (3) the earliest dates measured on charcoal clustered reliably around cal AD 989–1210, suggesting that the first Andalusi irrigated terraces of Ricote were built between the end of the 10th and the beginning of the 13th centuries AD.

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