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Toxicity assessment of using polyurethane spray foam as a soil additive.

机译：使用聚氨酯喷涂泡沫作为土壤添加剂的毒性评估。

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摘要

The potential for acute toxicity associated with using polyurethane spray foam insulation as a soil additive was investigated in microbial, plant, and animal life. An acute toxicity test on an activated sludge was conducted using a respirometer. Varying levels of water soluble portions of polyurethane foam were added to cultures of activated sludge and the respiration rate was measured. The toxicity of an activated sludge culture was determined by a decrease in respiration rate as compared to a control. Acute toxicity on plant life was conducted on soybean plants. The test was conducted by introducing varying levels of heat treated and non-heat treated polyurethane foam to soil at varying concentrations and comparing the biomass of the plants grown in the soil amended with the spray foam to a control. Toxicity was determined based upon a decrease in biomass as compared to the control. Acute toxicity on animal life was conducted on earthworms by introducing varying levels of heat treated and non-heat treated polyurethane foam to an artificial soil environment to which the earthworms were introduced for one week. The toxicity to the earthworms was determined based upon the number of surviving worms at the end of the week as compared to the control. Based upon the results of the study further research should be conducted before the polyurethane spray foam insulation is used as a soil additive.
机译：在微生物，植物和动物生命中，研究了与使用聚氨酯喷涂泡沫隔热材料作为土壤添加剂相关的潜在急性毒性。使用呼吸计对活性污泥进行了急性毒性试验。将不同水平的聚氨酯泡沫的水溶性部分添加到活性污泥的培养物中，并测量呼吸速率。活性污泥培养物的毒性通过与对照相比呼吸速率的降低来确定。在大豆植物上进行了对植物生命的急性毒性。通过将不同水平的经热处理和未经热处理的聚氨酯泡沫以不同的浓度引入土壤中，并将在用喷雾泡沫改性的土壤中生长的植物的生物量与对照进行比较，从而进行了测试。基于与对照相比生物量的减少来确定毒性。通过将不同水平的经过热处理和未经热处理的聚氨酯泡沫塑料引入人工土壤环境中，对earth进行了对动物生命的急性毒性。对the的毒性是根据与对照相比在一周结束时存活的蠕虫的数量来确定的。根据研究结果，应在将聚氨酯喷涂泡沫保温材料用作土壤添加剂之前进行进一步的研究。

著录项

  • 作者

    Hall, Luke.;

  • 作者单位

    University of Arkansas.;

  • 授予单位 University of Arkansas.;
  • 学科 Health Sciences Toxicology.;Engineering Civil.;Chemistry Polymer.
  • 学位 M.S.
  • 年度 2011
  • 页码 101 p.
  • 总页数 101
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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