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[在南都河流域的抗生素污染和多层次生态风险评估的空间时间变化]

Dan-Yu Huang¹, Sheng Wang¹, Long Cheng²

¹Hainan Provincial Ecological Environment Monitoring Center, Haikou 571126, China.

Huan jing ke xue= Huanjing kexue

|March 14, 2026

概括

在南都河流域的抗生素污染被评估使用HPLC-MS/MS. 硫黄胺是最常见的,有几种抗生素带来高生态风险,需要有针对性的管理策略.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
评估水质水质的评估.

背景情况:

抗生素污染是一个日益严重的环境问题,影响水生生态系统.
了解抗生素的时空分布和生态风险对于有效的水资源管理至关重要.
作为重要水源的南都河流盆地,需要对其抗生素污染水平进行评估.

研究的目的:

在南都河流域研究44种抗生素的时空变异.
用一种敏感的HPLC-MS/MS方法对抗生素度进行定量分析.
用风险系数 (RQ) 和联合概率曲线 (JPC) 方法评估被检测到的抗生素所带来的生态风险.

主要方法:

使用大量注射高性能液体染色学-并列质谱法 (HPLC-MS/MS) 来对五种类型的44种抗生素进行定量分析.
使用风险系数 (RQ) 方法和联合概率曲线 (JPC) 的生态风险评估.
确定不同水文时期 (正常,干燥,潮湿季节) 的抗生素度.

主要成果:

检测到10种抗生素,总度从无法检测到2,034.38 ng·L-1不等.
硫甲,硫甲和佛罗芬尼科尔是最频繁检测和度最高的药物之一.
平均抗生素度在正常水期是最高的,其次是干旱和潮湿的季节. 硫甲醇,三甲,林氏素,红色素和克林达胺素基于RQ值构成高风险,超过预测无效度 (PNEC) 的比率高达11.9%.

结论:

该研究发现,南都河流盆地存在严重的抗生素污染,特定的抗生素具有很高的生态风险.
与传统方法相比,多层次的生态风险评估方法可以更准确地评估抗生素污染.
这些发现支持在区域范围内对抗生素污染进行分层管理和空间差异化的控制策略的发展.

关键词:

南都河流盆地南都河流盆地抗生素抗生素是一种抗生素.生态风险生态风险概率风险评估是一种概率风险评估.时间空间的变化.

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