Showing posts with label enrichment factor. Show all posts
Showing posts with label enrichment factor. Show all posts

Tuesday, 18 February 2025

Examining the Effect of Induced Industrial and Urban Toxic Elements on Sediment Quality | Chapter 2 | Recent Developments in Chemistry and Biochemistry Research Vol. 11

The growing population has resulted in significant pollution of rivers and streams from both residential and industrial sources. The impact of pollution-induced by human activities is of high concern because of extreme environmental issues. In this study, the sediment quality was assessed using pollution index models to ascertain the pollution level of toxic elements. The concentration ranges of radioactive elements uranium and thorium, determined as 1.26 – 2.86 mg/kg and 3.36 – 5.84 mg/kg have demonstrated notable levels of beta and alpha radioactivity of 0.1 to 1.0 Bq/q. These levels of radioactive pollution could be hazardous to the benthic community of the riverbed. Extreme concentrations of lead and mercury, 475 and 77.5 mg/kg, respectively, were detected to have high levels of the geoaccumulation index, pollution load index, contamination, and enrichment factors. These levels ranging from significant contamination to severe enrichment correlated with possible human input. Pearson Correlation revealed a significant coefficient between arsenic–iron and lead–iron and a weak correlation between arsenic–mercury and mercury–cadmium. These correlations suggested that similar types of pollution sources are responsible for the contamination of river sediment. In an effort to maintain the quality of the sediment health and minimize the impact of toxic pollutants, it is imperative that the river sediment be monitored constantly.

 

Author (s) Details

 

Nehemiah Mukwevho
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa and School of Chemistry, University of the Witwatersrand, Private Bag 3, WITS, 2050, South Africa.

 

Napo Ntsasa
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa and School of Chemistry, University of the Witwatersrand, Private Bag 3, WITS, 2050, South Africa.

 

Andile Mkhohlakali
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa.

Luke Chimuka
School of Chemistry, University of the Witwatersrand, Private Bag 3, WITS, 2050, South Africa.

 

James Tshilongo
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa and School of Chemistry, University of the Witwatersrand, Private Bag 3, WITS, 2050, South Africa.

 

Dimakatso Mokgosi
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa.

 

Happy Mabowa
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa.

 

Mokgehle R Letsoalo
Analytical Chemistry Division, Mintek, Private Bag X3015, Randburg 2125, Johannesburg, South Africa.

 

 

Please see the book here:- https://doi.org/10.9734/bpi/rdcbr/v11/3929

Thursday, 24 November 2022

Interrelationship between Ecological Risk Assessment with Trace Metals Levels in Surface Sediments from Fresco Lagoon, Côte d’Ivoire, West Africa| Chapter 5 | Current Advances in Geography, Environment and Earth Sciences Vol. 8

 The objective of the study was to decide the trace elements concentrations in the sediments on individual hand, and in another way, to identify their main beginnings of contamination. This study will admit an updating of dossier, understanding of the origin and in consideration of contamination of these trace metals through their relating to space dispersion in the aquatic surroundings of the Fresco Lagoon. Contamination of aquatic surroundings by trace metals has been completely studied in current years, on account of the fact that metals are determined, toxic, likely to bioaccumulate, and that they encourage a risk for humans and environments.Surface sediments from Fresco Lagoon (Côte d'Ivoire) were analyzed to evaluate the contamination quality of the area. Concentrations of five picked trace metals (Pb, As, Mn, Zn, and Fe) and organic matter content were persistent in samples collected from ten (10) stations, from June 2019 to March 2020. Trace metals concentrations were driven using an ICP-OES Instrument, while the natural resources details were determined by the bulk loss on explosion. To assess the alloy pollution rank in the studied field, four pollution indications were also planned: Geoaccumulation Index (Igeo), Enrichment Factor (EF), Degree of Contamination (DC), and Pollution Load Index (PLI). Based on Igeo values, the sediments of Fresco Lagoon were in the range of clean to moderately fouled with As, but clean with Zn, Pb, Mn, Fe. The Enrichment determinants of Pb, Zn, As, Mn, and Fe were: 64.22±52.32, 107.04±111.88, 227.29±203.06, 10.25±8.76, and 52.04±47.44 respectively, suggesting that the beginning of those metals was more likely to be anthropogenic. The dropping trend of advancement factors was in this manner: As > Zn > Pb > Fe > Mn. Moreover, the PLI (PLI>1) showed bigger principles at the stations closed to the city area, on account of the influence of direct external beginnings such as land runoff, and different anthropogenic inputs. There was no hazardous hazard for benthic creatures in the sediments from Fresco Lagoon when the trace alloy concentrations were compared to the debris quality guidelines. In conclusion, the findings of the current study have explained the necessity of best choice management of anthropogenic endeavors with regard to trace metals usually, and Pb and As in particular.

Author(s) Details:

Ouattara Yè Nicaise,
Laboratoire de Constitution et Réaction de la Matière de l’Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire.

Trokourey Albert,
Laboratoire de Constitution et Réaction de la Matière de l’Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire.

Tuo Adama Diarrassouba,
Centre de Recherches Océanologiques (CRO), 29, Rue des pêcheurs – BP. V 18 Abidjan, Côte d’Ivoire.

Please see the link here: https://stm.bookpi.org/CAGEES-V8/article/view/8685

Thursday, 16 December 2021

Assessment of Heavy Metals Pollution for Cultivated Soils, Irrigated by Several Irrigation Waters Varying in their Qualities in Al-Hassa Oasis, Kingdom of Saudi Arabia | Chapter 6 | Current Topics in Agricultural Sciences Vol. 4

 Twenty-four composite surface soil samples (0-30cm depth) representing cultivated soils irrigated for long periods of time (more than fifteen years) with various irrigation water qualities: (i-ground water (GW), ii-ground water + agricultural drainage water (DW), iii-ground water + tertiary treated wastewater (TTWW), and iv-ground water, (GW) + agricultural drainage water, (DW) + tertiary treated wastewater, (TTWW) These contents can be placed in the following descending order: Fe > Cu >Mn>Zn> Ni >Pb> Co > As > Cd, according to the results. In general, the different irrigation water quality can be grouped in the following order based on their impacts on total heavy metal levels in soils: (GW+DW+TTWW) >(GW+TTWW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW)> (GW+DW) (GW). The soil irrigated with groundwater is uncontaminated with these elements, according to the geo-accumulation index, Igeo values for Mn, Fe, Co, and Cd. Igeo values for Cu, Zn, Pb, and Ni, on the other hand, are > 0 and 1, respectively, suggesting that the soil is uncontaminated to moderately contaminated with these elements. In general, Igeo readings for soils irrigated with (GW+ DW+TTWW) indicated heavy metal contamination patterns comparable to those of soils irrigated with (GW+TTWW) and (GW+DW), although at different levels. The studied soils are significantly contaminated with Cu, Ni, Pb, and Zn due to irrigation with ground water, Cu, Ni, Pb, and Zn in the soil irrigated with (GW+DW), Cu, Pb, Zn, Ni, and As in both soils irrigated with (GW+TTWW) and (GW+ DW+TTWW), and Cu, Pb, Zn, Ni, and As in both soils irrigated with (GW+ The results show that the EF mean values of heavy metals in the examined soils irrigated with various irrigation water qualities may be arranged in the following descending order: (GW+ DW+TTWW)> (GW+TTWW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW+DW) > (GW (GW).

(1) Assess heavy metal contamination of agriculture cultivated soil irrigated with different irrigation water qualities in Al-Hassa Oasis, Saudi Arabia, using three approaches: the geo accumulation index (Igeo), the Enrichment Facto (EF), and the Pollution Index (PI).

Author(S) Details

M. S. Mohammed
Soil and Water Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt and Soil and Water Expert, Al- Hassa Irrigation and Drainage Authority, KSA.

A. A. M. Sallam
Agriculture Operation, Date Palm Research Center of Excellence, King Faisal University, KSA and College of Technology and Development, Zigzag University, Egypt.

S. M. Aleid
Food Science, Date Palm Research Center of Excellence, King Faisal University, KSA.

View Book:- https://stm.bookpi.org/CTAS-V4/article/view/5137