In the last two years, an accounting analysis has been made of physical quantification of environmental pollution, imputed treatment cost and the environmental degradation cost for 42 industries.
在过去的2年中，一份分析账户已经形成，它由42个产业所造成的环境污染，治理费用和环境退化的实质定量而组成。
The turning point came in 1999, when the Bank began confronting countries with the high cost of doing nothing about environmental degradation, says Arif.
转折点发生在1999年。 当时，世行开始面对那些由于对环境恶化不采取行动而将面临高额代价的国家，Arif说。
Photo degradation of organic contaminant perhaps is the most prospective environmental purification technology due to its low cost, without secondary pollution and ease of processing.
光催化降解有机污染物工艺简单，成本较低，无二次污染，是最有希望的环境友好新技术。
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