Accumulation of microcystin toxin in irrigation water and alfalfa (Medicago sativa) forage plant, and assessing the potential risk to animal health.

Chemosphere Pub Date : 2024-09-01 Epub Date: 2024-09-02 DOI:10.1016/j.chemosphere.2024.143248

Zakaria A Mohamed, Yasser Mostafa, Saad Alamri, Mohamed Hashem

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Abstract

Microcystin (MC) toxin produced by cyanobacteria has become a significant concern for societies worldwide. The risk of MC in drinking water has been assessed to human health. Nonetheless, its risk to animal health has not been thoroughly evaluated. This study investigated MCs in irrigation water and alfalfa plant from nearby farmlands. Both irrigation water and alfalfa shoots contained greater MC concentrations (1.8-17.4 μg L^-1 and 0.053-0.128 μg g^-1) during summer than winter (2.4 μg L^-1 and 0.017 μg g^-1). These MC concentrations showed a correlation with the predominance of cyanobacteria in the sites, triggering the potential risk of these microorganisms in irrigation waters. Accordingly, there would be a high risk (risk quotient, RQ > 1) during summer and a moderate risk (0.1

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灌溉水和紫花苜蓿（Medicago sativa）饲草中微囊藻毒素的积累，以及对动物健康潜在风险的评估。

蓝藻产生的微囊藻毒素（MC）已成为全球社会关注的一个重要问题。已对饮用水中的 MC 对人类健康的风险进行了评估。然而，其对动物健康的风险尚未得到全面评估。本研究调查了附近农田灌溉用水和苜蓿草中的 MCs。灌溉水和紫花苜蓿嫩芽中的 MC 浓度（1.8-17.4μg L-1 和 0.053-0.128μg g-1）在夏季均高于冬季（2.4μg L-1 和 0.017μg g-1）。这些 MC 浓度与灌溉地中蓝藻的主要分布相关，从而引发了灌溉水中蓝藻微生物的潜在风险。因此，夏季灌溉水中的蓝藻风险较高（风险商数，RQ>1），而夏季灌溉水中的蓝藻风险较低（0.1%）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Chemosphere

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