Adopt international science-based standards to limit human exposure.

采纳有科学依据的国际标准以限制人类暴露。

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In one study, tap water accounted for up to 20 percent of human exposure to lead.

一项研究表明，自来水占人体所接触到的铅的20%。

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These studies provide an assessment of human exposure to dioxins from all sources.

通过这些研究，对人类对各种来源的二恶英的接触进行了评估。

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By June, the levels of radioactive cesium-137 between 18 and 300 miles offshore were safe for human exposure, he said.

WSJ: In Japan, Relief at Radiation's Low Toll

Human exposure to cyclosarin can cause shortness of breath, muscle spasms, unconsciousness and death, according to the International Institute for Strategic Studies.

CNN: Initial tests of Iraqi chemicals show nerve agent

The firm says the low power-density of its lasers and a series of safeguards ensures that human exposure remains within regulatory limits.

ECONOMIST: Wireless charging