Traditional disposal of the high water content slime from the beneficiating and washing of the bauxite mine takes a long time to consolidate and causes environment contamination.

铝土矿选洗过程中排尾形成的高含水量矿泥，传统上采用建库堆存，泌干固结时间长，污染环境。

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At present, the study and application of the triazene reagents have extended from the domain of traditional inorganic analysis to the life active substance and environment contamination analysis.

目前，三氮烯类试剂的研究和应用已从传统的无机分析领域扩大到生命活性物质、环境污染物分析等方面。

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In this now universal contamination of the environment, chemicals are the sinister partners of radiation in changing the very nature of the world — the very nature of its life.

在当今这种对环境的普遍污染中，化学制品与辐射狼狈为奸，改变着地球的自然状态，也就是改变着地球上生命的自然状态。

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In declaring the emergency, Peru's Environment Ministry said the contamination included high levels of lead, barium and chromium as well as petroleum-related compounds.

NPR: Peru Declares Amazon Oil Contamination Emergency

Protesters say fracking could have "enormous implications" for the local environment particularly about the contamination of waste or flowback water once it has been used in the fracking process.

BBC: Lancashire's shale gas estimated at ?136bn by Cuadrilla

The goal would be to rejuvenate the environment and subsequently stop the contamination of the food chain.

CNN: Tomorrow Today