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在石灰质土壤中减少和的风险:使用DTPA,SBRC和小鼠生物试验进行综合评估

Ningning Xu¹, Liping Li^2,3,4, James A Ippolito⁵

¹College of Civil Engineering, Henan University of Technology, Zhengzhou, 450001, Henan, China.

Environmental geochemistry and health

|October 21, 2025

概括

酸盐,托尼特和石灰有效降低高pH的土壤中的重金属健康风险. 这些修正案降低了和的生物可用性,有助于污染的石灰质土壤的回收.

科学领域:

环境科学环境科学
土壤科学土壤科学
毒理学毒理学毒理学

背景情况:

重金属污染对健康构成重大风险,特别是在具有挑战性的土壤条件下,如高pH的石灰质土壤.
固定剂对于减轻这些风险至关重要,但它们的有效性可能受到土壤特性的限制.

研究的目的:

评估可溶性酸盐,酸和石灰作为 (Pb) 和 (Cd) 在污染的石灰土壤中的固定剂的有效性.
在小鼠模型中评估这些修正案对重金属生物可访问性 (BAC) 和生物可用性 (RBA) 的影响.

主要方法:

污染的石灰质土壤用可溶性酸盐,托尼特或石灰进行修改,并化360天.
使用小鼠模型评估了和的生物可用性 (RBA).
重金属的生物可访问性 (BAC) 用溶解生物可访问性研究联盟 (SBRC) 方法确定.
用DTPA提取的土壤重金属被量化.

主要成果:

酸盐和石灰的修改显著降低了DTPA可提取的Pb和Cd度.
这三项修改均降低了胃阶段的Pb和Cd BAC.
石和石灰的修改增加了骨Pb度和RBA,表明金属分布的潜在转变.
酸盐,托尼特和石灰修改剂在各种组织中显著降低了Cd-RBA和Pb-RBA.

结论:

溶性酸盐,托尼特和石灰有效降低金属污染的石灰质土壤中的对健康的风险.
DTPA提取和BAC结果显示了预测金属RBA的潜力.
这些修正案为重金属污染的石灰质土壤的回收提供了一个可行的战略.

关键词:

修正案修正案是一个修正案.生物可访问性生物可访问性生物可用性生物可用性石灰质土壤是一种石灰质土壤.可提取性可提取性这是一种重金属,重金属.

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