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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Phytotoxicity of oil sands naphthenic acids and dissipation from systems planted with emergent aquatic macrophytes
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Phytotoxicity of oil sands naphthenic acids and dissipation from systems planted with emergent aquatic macrophytes

机译：油砂环烷酸的植物毒性和从突发水生植物种植系统中的耗散

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摘要

Differences in dissipation and phytotoxicity were measured for two naphthenic acid mixtures in hydroponically grown emergent macrophytes (Typha latifolia, Phragmites australis, and Scirpus acutus). One of the naphthenic acid (NA) mixtures was extracted from tailings pond water of an oil sands operation in Fort McMurray, Alberta, Canada. The other mixture was a commercially available NA mixture. While the oil sands NA mixture was less phytotoxic to wetland plants compared to the commercially available NA mixture, they were not sequestered by wetland plants like their commercial NA counterparts. The small loss of commercial NAs from the spiked hydroponic system appeared to be selective and dependant on the specific NA compound. The results of this study indicate that plants alone may not mitigate NAs from oil sands tailings pond water. In addition, caution should be taken when making predictions on the environmental fate of oil sands naphthenic acids when using commercial NAs as surrogates.
机译：测量了水培生长的大型植物（香蒲（Typha latifolia），澳洲芦苇（Pragmites australis）和Scirpus acutus）中两种环烷酸混合物在耗散性和植物毒性上的差异。一种环烷酸（NA）混合物是从加拿大艾伯塔省麦克默里堡的油砂厂的尾矿池水中提取的。另一混合物是可商购的NA混合物。尽管油砂NA混合物对湿地植物的植物毒性比市售NA混合物低，但它们并未像其商业化的NA同类物那样被湿地植物所隔离。加标水培系统中商业性NA的少量损失似乎是选择性的，并取决于特定的NA化合物。这项研究的结果表明，仅植物可能无法减轻油砂尾矿池塘水中的NA。此外，在使用商业NAs替代物预测油砂环烷酸的环境命运时，应谨慎行事。

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