Based on the concept of intake fraction, a rapid population exposure assessment method was developed in this paper.

基于吸入因子概念，建立了污染物排放造成的人体暴露的计算方法。

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Objective: As there is a potential health impact of SO 2 pollution on human body, it is important to understand the characteristics of population exposure to SO 2 in the urban area of Guangzhou.

目的：大气中SO 2污染会对人体健康带来潜在的危害，因此有必要了解广州市区SO 2污染与人群暴露水平。

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"We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York," Perera said.

“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现，”佩雷拉说。

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Because on second exposure there's another population of cells that I haven't mentioned before that remain after the primary exposure and those are called memory cells, they're down here.

因为在再次免疫中,有另外一些细胞,我之前并没有提到过它们,在初次免疫结束后保留下来的细胞,被称为记忆细胞,它们在下面

耶鲁公开课 - 生物医学工程探索课程节选

Still, reports on population exposure are as much guesswork as science.

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

So are Chinese across the country: Rice is the staple food for most of the population, so widespread cadmium exposure is another wake-up call that unaccountable government causes public health disasters.

WSJ: Review & Outlook: China's Toxic Rice Bowl

Dr. Yamashita, of Fukushima Medical University, said that, though radiation exposure for the general population has likely been low, evacuations and fear of radiation could lead to problems such as increased consumption of alcohol and stress-related illnesses.

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