...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >TOXICITY OF AIRCRAFT DE-ICER AND ANTI-ICER SOLUTIONS TO AQUATIC ORGANISMS
【24h】

TOXICITY OF AIRCRAFT DE-ICER AND ANTI-ICER SOLUTIONS TO AQUATIC ORGANISMS

机译：飞机除冰剂和防冰剂溶液对水生生物的毒性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Laboratory studies were undertaken to assess the toxicity of industrial mixtures of aviation de-icers and anti-icers. Various additives and contaminants are present in these solutions at proportions of 10 to 20% of the total volume. Static-renewal toxicity tests were performed at concentrations that bracketed published LC50 values for the primary ingredients (9-51 ml glycol/L) using fathead minnow (Pimephales promelas), Daphnia magna, Daphnia pulex, Ceriodaphnia dubia, and Photobacterium phosphoreum (Microtox~®) bioassays. Water from a stream that receives runoff from a large commercial airport was also tested during a late winter storm (March), and spring baseflow (April). The anti-icer solution was more toxic than the de-icer solution by two orders of magnitude (96-h LC50 range 0.03-0.44 ml/L, 3.02-13.48 ml/L, respectively). Both types of solutions exhibited greater toxicity than previously reported values for the primary ingredients. Toxic effects were observed in the March stream sample, but not the April sample. Significant inhibition of reproduction in C. dubia in the anti-icer and de-icer solutions occurred at 0.05 and 0.38 ml/L, respectively. Effects were observed in the Microtox assay at concentrations of 0.125 and 0.25 ml/L for the anti-icer and de-icer, respectively. Results suggest that the additives, rather than the glycols, are the major source of toxicity. Histological damage observed in fathead minnows primarily involved gill, kidney, and skin tissue, with the most prominent responses seen in fish exposed to the anti-icer solution. The de-icer solution elicited respiratory epithelial "disruption" and renal damage, and the anti-icer caused proliferative branchitis (hyperplastic response) and delamina-
机译：进行了实验室研究以评估航空除冰剂和防冰剂工业混合物的毒性。这些溶液中各种添加剂和污染物的含量占总体积的10％至20％。使用胖头min鱼（Pimephales promelas），大型蚤（Daphnia magna），大型蚤（Daphnia pulex），杜鹃（Ceriodaphnia dubia）和发光细菌（Photobacteriumphosphoumum）（Microtox〜 ®）生物测定。在冬季暴风雨（3月）和春季底流（4月）期间，还测试了从大型商业机场接收径流的水流。防冰溶液的毒性比防冰溶液高两个数量级（96小时LC50范围分别为0.03-0.44 ml / L，3.02-13.48 ml / L）。两种类型的溶液均显示出比以前报道的主要成分更高的毒性。在三月份的水样中观察到了毒性作用，但四月份的水样没有观察到毒性作用。在除冰剂和除冰剂溶液中，杜仲念珠菌的繁殖抑制作用分别为0.05和0.38 ml / L。在Microtox分析中，分别以0.125和0.25 ml / L的浓度对防冰剂和除冰剂产生了影响。结果表明，添加剂而不是乙二醇是毒性的主要来源。在黑头min鱼中观察到的组织学损害主要涉及g，肾脏和皮肤组织，而暴露于抗冰剂溶液的鱼则表现出最明显的反应。除冰剂溶液引起呼吸道上皮“破坏”和肾脏损害，而除冰剂引起增生性分支炎（增生反应）和分层。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号