Phenol is a kind of toxic organic pollutant commonly emitted from industrial effluents.

苯酚是一种毒性有机污染物，通常源自工业废水。

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In this paper, the preparatory treatment for determination of Cr6+ in ground water or industrial effluents by the method of spectrophotometry has been improved.

本文对二苯碳酰二肼分光光度法测定地表水及工业废水中六价铬的样品预处理方法提出了改进措施。

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Such monitoring is important to prevent loss of valuable material or to detect possible pollutants in the effluents from industrial processes.

这种监测工作对于避免珍贵材料的损失或者检测工业过程的污水中可能存在的污染物质都是很重要的。

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Quantities of sewage are poured into it daily, 95% of which is untreated, and it is also a depository for industrial effluents, chemicals from farm runoffs and arsenic and fluoride contamination.

ECONOMIST: It must also be clean

Delhi draws three-quarters of its drinking water from the Yamuna river, into which the city dumps quantities of sewage, almost all of it untreated, to join a cocktail of farm chemicals and industrial effluents, including arsenic.

ECONOMIST: Bursting cities, bust infrastructure