几种主要水化学因素对典型重金属水生生物毒性的影响分析
Effects of several key hydrochemical factors on toxicity of typical heavy metals to aquatic organisms
王昕 1噶玛扎西 2石文卿 2程英豪 3许子寒 4郭伟 5王颖1
作者信息
- 1. 北京航空航天大学材料科学与工程学院,北京 100191
- 2. 北京航空航天大学空间与环境学院,北京 100191
- 3. 生态环境部核与辐射安全中心,北京 100082
- 4. 北京师范大学水科学研究院,北京 100875;中国环境科学研究院,环境基准与风险评估国家重点实验室,北京 100012
- 5. 北京市水文总站,北京 100089
- 折叠
摘要
为阐明不同水化学条件对水体中重金属生物毒性的影响,本研究探究了pH值、硬度、温度和有机碳(OC)四个主要水化学因素对 4 种典型重金属引起不同类别水生生物急、慢性毒性的影响.结果表明,单一水化学因素对不同金属的水生生物毒性影响存在较大差异;硬度和OC的升高会使得鱼类的水生生物毒性降低;温度的升高则会增加鱼类、昆虫的水生生物毒性.对不同类别的生物,单一水化学因素的毒性影响不同.考虑综合水化学因素的影响时,水生生物急性毒性和慢性毒性受到的影响效果显著不同;综合因素中OC可能是影响毒性的重要因子.
Abstract
In order to clarify the effects of different hydrochemical conditions on the toxicity of heavy metals to aquatic organisms,this study investigated the influence of four primary hydrochemical factors,i.e.,pH,hardness,temperature,and organic carbon(OC),on the acute and chronic toxicity of four typical heavy metals to different taxon of aquatic organisms.The results showed the effects of individual hydrochemical factors on the toxicity of different metals differ.The increases in hardness and OC were found to reduce the toxicity of metals to fish,whereas the increase in temperature enhanced the toxicity to both fish and insects.The impact of individual hydrochemical factors varied for different taxon of organisms.When considering the combined effects of these factors,the effects of acute toxicity and chronic toxicity to aquatic organisms were significantly different.OC might be an important factor affecting toxicity.
关键词
重金属/水生生物/水化学因素/毒性/影响Key words
heavy metals/aquatic organisms/hydrochemical factors/toxicity/impact引用本文复制引用
基金项目
国家自然科学基金资助项目(42177240)
国家重点研发计划(2022YFC3204800)
中央高校基本科研业务费()
出版年
2024
NETL
NSTL
万方数据