According to Time Magazine, 99 percent of the children in La Oroya have blood levels that exceed acceptable limits.

据时代杂志报道，当地99%的孩子血液中的(污染物)含量都超过了正常水平。

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The negative Doppler effect will limits the power to an acceptable level during the time delay for protective action.

多普勒负反应性反馈效应能在保护动作延迟的时间内将功率限制在可接受的水平。

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This was proven at Rannoch over a period of well over 100 years with a doctor, or doctor and assistant, locally resident and able to attend every corner of this remote area within acceptable time limits and within reasonable cost constraints.

BBC: Kinloch rannoch

It published on Monday, for the first time, environmental quality standards setting acceptable limits for contaminants in soil.

NPR: Peru Declares Amazon Oil Contamination Emergency