College of Bioscience and Biotechnology, Yangzhou University, Wenhui Road 225009, China.
J Hazard Mater. 2009 Dec 15;172(1):240-6. doi: 10.1016/j.jhazmat.2009.07.001. Epub 2009 Jul 8.
Cooking oil fumes (COF) and their condensates (COFCs), which are suspected of causing human lung cancers, are hazardous materials to environments. The effects of COFCs on the vegetative growth of Salvinia natans (L.) All., a free-floating aquatic fern, are discussed in this paper. The results showed that there were no differences of the number of floating leaves and the mean numbers of new leaves of S. natans in all groups, but these indices in experimental groups were influenced obviously at the late stage. COFCs also influenced stem length and number of buds of S. natans. COFCs could cause the floating leaves to turn yellow and individuals to die quickly. All these effects were correlated with the concentration of COFCs and the time. When the concentration of COFCs was > or =0.18 g/l, above 80% individuals would die in a short time. COFCs had significant impacts on the decrease in photosynthetic areas of S. natans by making the floating leaves turn yellow faster and accelerating the decomposition. There were some components in minute amount benefiting to the growth of S. natans. S. natans was sensitive to COFCs and could be a potential indicator for monitoring COFCs pollution in aquatic environments.
食用油油烟（COF）及其冷凝物（COFCs）被怀疑是导致人类肺癌的物质，对环境是有害的。本文讨论了 COFCs 对浮生蕨（Salvinia natans（L.）All.）这种水生漂浮蕨类植物的营养生长的影响。结果表明，在所有组中，漂浮叶片的数量和新叶片的平均数量均无差异，但在后期实验组的这些指标受到明显影响。COFCs 还影响了浮生蕨的茎长和芽数。COFCs 可使漂浮叶片变黄，植株迅速死亡。所有这些影响均与 COFCs 的浓度和时间有关。当 COFCs 的浓度≥0.18g/L 时，短时间内超过 80%的个体将死亡。COFCs 通过使漂浮叶片更快变黄并加速分解，对浮生蕨的光合面积减少产生了显著影响。其中有一些微量成分有利于浮生蕨的生长。浮生蕨对 COFCs 敏感，可作为监测水生环境 COFCs 污染的潜在指示物。
