Evaluation of Physic-chemical Parameters of Water Quality on Agricultural Fields of Western Bahia

Rego, Enoc Lima do; Gomes, Daniel Batista; Júnior, Jorge da Silva; Herok, Diego Lucena; Porto, Eneas Denieste de Oliveira; Leite, Oldair Donizeti

doi:10.17807/orbital.v9i2.880

Cited by 2 publications

(2 citation statements)

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“…The pH at the D2 sampling period showed higher values, signi cantly different from the other periods. The pH in D1, R1, and R2 agrees with results presented in other works in the study area, being slightly acidic due to the natural characteristics of the region, especially the presence of native vegetation (Rego et al, 2014;Rego et al, 2017). The period D2 is affected by point sources, which may be related to the decrease in water temperature in the same season (Souza et al, 2021).…”

Section: Descriptive Statistical Analysis Of Data and Seasonalitysupporting

confidence: 88%

Spatio-temporal study of water quality variables in the Rio de Ondas Hydrographic Basin, west of Bahia, Brazil using multivariate analysis

do Rego,

Portela,

de Lima Ribeiro

et al. 2023

Environ Monit Assess

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Water bodies are containers that receive a large load of pollutants through the release of domestic, industrial, and agricultural e uents. With this focus, this work aimed to conduct a temporal-spatial variability study in the Rio de Ondas Hydrographic Basin through multivariate statistical analysis. For this, seventeen collection sites were established in four stations along the Rio de Ondas and its tributaries between 2017 and 2018. Ionic chromatography with suppressed conductivity was used for ions determination, while ICP-OES determined metals' total concentrations. The land use and occupation assessment between 1985 and 2015 was conducted using images from Landsat 5 and 8 satellites and the descriptive and multivariate analysis of the data using version 10 of the Statistica software. The results showed that, in thirty years, there was a growth of 569% of agricultural activities in the watershed area, with signi cant suppression of native vegetation, favoring the transport of pollutants to rivers. Ca 2+ , PO 4 2− , Al, Cu, and Zn concentrations showed a statistically signi cant difference between the seasons, with higher medians in the rainy season. Rainy season in uenced the formation of three groups in the PCA, consisting of electrical conductivity, salinity, TDS, and PO 4 2− (group 1); temperature, Fe, SO 4 2− and Cl − (group 2); and Ca 2+ , Mg 2+ , Na + , and HCO 3 − (group 3). The strong correlation between parameters of each group indicates anthropic in uence on the watershed's water quality. However, levels are within the potability standard.

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Section: Descriptive Statistical Analysis Of Data and Seasonalitysupporting

confidence: 88%

Spatio-temporal study of water quality variables in the Rio de Ondas Hydrographic Basin, west of Bahia, Brazil using multivariate analysis

do Rego,

Portela,

de Lima Ribeiro

et al. 2023

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…The pH at the D2 sampling period showed higher values, signi cantly different from other periods. The pH in D1, R1, and R2 agrees with results presented in other works in the study area, being slightly acidic due to the natural characteristics of the region, especially the presence of native vegetation (Rego et al, 2014;Rego et al, 2017). The period D2 is affected by point sources, which may be related to the decrease in water temperature in the same season (Souza et al, 2021).…”

Section: Descriptive Statistical Analysis Of Data and Seasonalitysupporting

confidence: 87%

Spatio-temporal Study of Pollutants in the Rio De Ondas Hydrographic Basin, West of Bahia, Brazil Using Multivariate Analysis

Rego

Portela

Ribeiro

et al. 2022

Preprint

View full text Add to dashboard Cite

Water bodies are containers that receive a large load of pollutants through the release of domestic, industrial, and agricultural effluents. With this focus, this work aimed to conduct a temporal-spatial variability study in the Rio de Ondas Hydrographic Basin through multivariate statistical analysis. For this, seventeen collection sites were established in four stations along the Rio de Ondas and its tributaries between 2017 and 2018. Ionic chromatography with suppressed conductivity was used for ions determination, while ICP-OES determined metals' total concentrations. The land use and occupation assessment between 1985 and 2015 was conducted using images from Landsat 5 and 8 satellites and the descriptive and multivariate analysis of the data using version 10 of the Statistica software. The results showed that, in thirty years, there was a growth of 569% of agricultural activities in the watershed area, with significant suppression of native vegetation, favoring the transport of pollutants to rivers. Ca2+, PO42−, Al, Cu, and Zn concentrations showed a statistically significant difference between the seasons, with higher medians in the rainy season. Rainy season influenced the formation of three groups in the PCA, consisting of electrical conductivity, salinity, TDS, and PO42− (group 1); temperature, Fe, SO42− and Cl− (group 2); and Ca2+, Mg2+, Na+, and HCO3− (group 3). The strong correlation between parameters of each group indicates anthropic influence on the watershed's water quality. However, levels are within the potability standard.

show abstract

Evaluation of Physic-chemical Parameters of Water Quality on Agricultural Fields of Western Bahia

Cited by 2 publications

References 0 publications

Spatio-temporal study of water quality variables in the Rio de Ondas Hydrographic Basin, west of Bahia, Brazil using multivariate analysis

Spatio-temporal study of water quality variables in the Rio de Ondas Hydrographic Basin, west of Bahia, Brazil using multivariate analysis

Spatio-temporal Study of Pollutants in the Rio De Ondas Hydrographic Basin, West of Bahia, Brazil Using Multivariate Analysis

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