Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia

Due to a lack of water-quality studies compared with water-quantity studies, an investigation into the factors influencing the hydrochemical composition of the rivers in the Tianshan and Altay Mountains was conducted with a model of multiple linear regression, while the suitability of the water qual...

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Autores principales: Wen Liu, Long Ma, Jilili Abuduwaili
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:06eb7653b82f4a7caa3ce45d96208ee12021-11-25T16:09:37ZWater Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia10.3390/agronomy111122702073-4395https://doaj.org/article/06eb7653b82f4a7caa3ce45d96208ee12021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2270https://doaj.org/toc/2073-4395Due to a lack of water-quality studies compared with water-quantity studies, an investigation into the factors influencing the hydrochemical composition of the rivers in the Tianshan and Altay Mountains was conducted with a model of multiple linear regression, while the suitability of the water quality for irrigation and the health risks of arsenic (As) were assessed with classical evaluation methods. The results suggest that 44.0% of the water samples from the Altay Mountains fell into the Ca-HCO<sub>3</sub> category type, 48.0% of the water samples were of the Ca-HCO<sub>3</sub>-Cl type, and the remaining samples belonged to the Ca-Na-HCO<sub>3</sub>-Cl type. In the Tianshan Mountain area, 58.6% of the water samples fell into the Ca-HCO<sub>3</sub> hydrochemical category, 20.7% of the water samples were of the Ca-HCO<sub>3</sub>-Cl type, and 20.7% of the water samples belonged to the Ca-Na-HCO<sub>3</sub>-Cl type. The major ions in the water were dominated by the control of the water and rock interaction. The interaction between water and rock in the Altay area controlled 69.2% of the overall variance in the As content in the river waters, and it dominated 76.2% of the variance in the Tianshan region. The river waters in the Altay and Tianshan Mountain regions are suitable for agricultural irrigation with excellent-to-good water quality. The results also suggest that there is no non-carcinogenic risk and that the carcinogenic risk is between the acceptable/tolerable risk range of 10<sup>−6</sup>–10<sup>−4</sup>, except only one sample in Tianshan Mountain region. The research methodology provided a reference for revealing the potential sources of toxic element pollution, and the results provided a scientific basis for regional agricultural irrigation, as well as a reference for decision making on the environmental protection of the watershed.Wen LiuLong MaJilili AbuduwailiMDPI AGarticlewater qualityagricultural irrigationarsenichuman health riskAltay and Tianshan MountainsCentral AsiaAgricultureSENAgronomy, Vol 11, Iss 2270, p 2270 (2021)
institution DOAJ
collection DOAJ
language EN
topic water quality
agricultural irrigation
arsenic
human health risk
Altay and Tianshan Mountains
Central Asia
Agriculture
S
spellingShingle water quality
agricultural irrigation
arsenic
human health risk
Altay and Tianshan Mountains
Central Asia
Agriculture
S
Wen Liu
Long Ma
Jilili Abuduwaili
Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
description Due to a lack of water-quality studies compared with water-quantity studies, an investigation into the factors influencing the hydrochemical composition of the rivers in the Tianshan and Altay Mountains was conducted with a model of multiple linear regression, while the suitability of the water quality for irrigation and the health risks of arsenic (As) were assessed with classical evaluation methods. The results suggest that 44.0% of the water samples from the Altay Mountains fell into the Ca-HCO<sub>3</sub> category type, 48.0% of the water samples were of the Ca-HCO<sub>3</sub>-Cl type, and the remaining samples belonged to the Ca-Na-HCO<sub>3</sub>-Cl type. In the Tianshan Mountain area, 58.6% of the water samples fell into the Ca-HCO<sub>3</sub> hydrochemical category, 20.7% of the water samples were of the Ca-HCO<sub>3</sub>-Cl type, and 20.7% of the water samples belonged to the Ca-Na-HCO<sub>3</sub>-Cl type. The major ions in the water were dominated by the control of the water and rock interaction. The interaction between water and rock in the Altay area controlled 69.2% of the overall variance in the As content in the river waters, and it dominated 76.2% of the variance in the Tianshan region. The river waters in the Altay and Tianshan Mountain regions are suitable for agricultural irrigation with excellent-to-good water quality. The results also suggest that there is no non-carcinogenic risk and that the carcinogenic risk is between the acceptable/tolerable risk range of 10<sup>−6</sup>–10<sup>−4</sup>, except only one sample in Tianshan Mountain region. The research methodology provided a reference for revealing the potential sources of toxic element pollution, and the results provided a scientific basis for regional agricultural irrigation, as well as a reference for decision making on the environmental protection of the watershed.
format article
author Wen Liu
Long Ma
Jilili Abuduwaili
author_facet Wen Liu
Long Ma
Jilili Abuduwaili
author_sort Wen Liu
title Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
title_short Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
title_full Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
title_fullStr Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
title_full_unstemmed Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia
title_sort water quality for agricultural irrigation and aquatic arsenic health risk in the altay and tianshan mountains, central asia
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/06eb7653b82f4a7caa3ce45d96208ee1
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AT longma waterqualityforagriculturalirrigationandaquaticarsenichealthriskinthealtayandtianshanmountainscentralasia
AT jililiabuduwaili waterqualityforagriculturalirrigationandaquaticarsenichealthriskinthealtayandtianshanmountainscentralasia
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