Evaluating the Effects of Diet on the Sensitivity of Hyalella azteca to an "Eco-friendly" Deicing Agent.

IF 3.6 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Environmental Toxicology and Chemistry Pub Date : 2024-09-02 DOI:10.1002/etc.5988

Paige Kohler, Rebecca E Yates, Greysen R Tomlinson, Amanda D Harwood

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Abstract

Salting of roadways contaminates local waterways via snowmelt and precipitation runoff, eliciting various toxicological impacts on aquatic ecosystems. Recently, "eco-friendly" deicing alternatives have been introduced in hopes of mitigating environmental impacts of deicing agents, while maintaining human safety. These "eco-friendly" alternatives may pose their own set of environmental concerns that require further study. While the potential toxicity of road salts has been evaluated for various aquatic species, the environmental factors that may influence this toxicity are less understood; and for emerging deicing alternatives, there is a lack of literature documenting these potential implications. For aquatic organisms, the highest exposure to road salts may coincide with reduced food availability, namely during the winter months. The present study evaluates the effect of a conditioning diet on the sensitivity of adult Hyalella azteca to an "eco-friendly"-labeled beet deicer (Snow Joe MELT Beet-IT). Various conditioning diets were examined, including TetraMin^TM, TetraMin and diatom (Thalassiosira weissflogii) combinations, and TetraMin and conditioned Acer sacharum leaves. For each diet type, 48- and 96-h water-only toxicity bioassays were conducted with adult H. azteca. These results were compared to organisms which experienced a 96-h starvation period prior to exposure and culture organisms. Diet types representing excess quality and quantity of food significantly decreased the toxicity of beet deicer to the organisms. However, starvation likely increases the toxicity of road salts to H. azteca. Therefore, the quantity and quality of food available to H. azteca may influence their sensitivity to deicing agents. Environ Toxicol Chem 2024;00:1-8. © 2024 SETAC.

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评估饮食对 Hyalella azteca 对 "生态友好型 "除冰剂敏感性的影响。

道路撒盐会通过融雪和降水径流污染当地水道，对水生生态系统产生各种毒害影响。最近，人们推出了 "生态友好型 "除冰替代品，希望在保证人类安全的同时，减轻除冰剂对环境的影响。这些 "生态友好型 "替代品可能会带来一系列环境问题，需要进一步研究。虽然已经评估了路面盐对各种水生物种的潜在毒性，但对可能影响这种毒性的环境因素了解较少；对于新出现的除冰替代品，缺乏记录这些潜在影响的文献。对于水生生物来说，接触路面盐最多的时候可能正是食物供应减少的时候，即冬季。本研究评估了调节饮食对成体 Hyalella azteca 对 "环保 "标签甜菜除盐剂（Snow Joe MELT Beet-IT）敏感性的影响。研究了不同的调节饮食，包括 TetraMinTM、TetraMin 和硅藻（Thalassiosira weissflogii）组合，以及 TetraMin 和调节过的 Acer sacharum 叶子。对于每种食物类型，都对成年 H. azteca 进行了 48 小时和 96 小时的纯水毒性生物测定。这些结果与暴露前经历了 96 小时饥饿期的生物和培养生物进行了比较。代表食物质量和数量过剩的饮食类型明显降低了甜菜除冰剂对生物的毒性。不过，饥饿可能会增加路盐对 H. azteca 的毒性。因此，H. azteca 可获得的食物数量和质量可能会影响其对除冰剂的敏感性。环境毒物化学 2024;00:1-8。© 2024 SETAC.

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来源期刊

Environmental Toxicology and Chemistry 环境科学-毒理学

CiteScore

7.40

自引率

9.80%

发文量

265

审稿时长

3.4 months

期刊介绍： The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.

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