聚乙烯微塑料对西普罗夫洛克萨毒性的pH依赖性影响以及洛常年L的吸收 Lenne
Yun Wang1, Ning Shan1, Zumrat Habibul2
1College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, China.
Bulletin of environmental contamination and toxicology
|September 14, 2025
概括
这项研究表明,pH值显著影响草吸收多少花素 (CIP),以及它的毒性,特别是当微塑料 (MPs) 存在时. 较高的pH值增加了芽中的CIP,并更严重地抑制了生长.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 植物科学 植物科学
背景情况:
- 微塑料 (MP) 和诸如西普洛素 (CIP) 这样的药物是新兴的环境污染物.
- 陆地生态系统中MP和CIP的联合毒性和命运尚未完全理解.
- 环境因素,如pH值,可以影响这些污染物的行为和生物可用性.
研究的目的:
- 为了研究pH值对聚乙烯微塑料 (MPs) 和西普罗素 (CIP) 在瑞草的联合毒性的影响.
- 为了确定pH值如何影响麦草在MPs的存在下吸收CIP.
- 为了评估pH值对麦草增长抑制在共污染下的影响.
主要方法:
- 在不同pH值 (5.3,7.0和8.8) 时,瑞格拉斯暴露于两种大小的碳酸聚烯微塑料 (PS-COOH;200和500nm) 和西普洛素 (CIP).
- 量化了瑞草根和芽中的CIP积累.
- 测量了麦草的发芽长度,以评估生长抑制.
主要成果:
- 中性和性pH (7.0和8.8) 显著降低了瑞草根中的CIP积累.
- 草芽中的CIP含量随着pH值的上升而增加,在pH值8.8.8时观察到大量的折叠增加.
- pH显著影响了生长抑制,在中性和性条件下效果更为明显,导致射长缩短.
结论:
- pH 在调节麦草中CIP吸收和毒性的过程中起着至关重要的作用,特别是在被MPs共同污染的环境中.
- 这些发现表明,由于CIP的高清除效率,草在MP污染的系统中具有CIP修复的潜力.
- 了解pH依赖相互作用对于评估MP和制药污染的生态风险至关重要.
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