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。
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SO2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。
"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。
“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。
As the number of base stations and local wireless networks increases, so does the RF exposure of the population.
随着基台和无线局域网络的数量增多，人们的射频接触也在增多。
The Sarno River frequently overflows its Banks and therefore puts the local population at repeated risk for exposure.
萨尔诺河水经常溢出河堤，从而让当地居民一再承受污染影响的风险。
Hospital exposure, contact to measles patients and floating population were risk factors which made this disease spread.
医院暴露、与麻疹病人接触、人口流动是本次麻疹传播的重要危险因素。
AIM: To investigate the relationship between electromagnetic field (EMF) exposure and dementia based on the population survey.
目的：通过人群调查探讨电磁场暴露与痴呆的关系。
Risk assessment is the use of scientific data to define the probability of some harm coming to an individual or a population because of exposure to a substance or situation.
风险评估即运用科学依据确定由于接触某种物质或事态对个人或群体所产生危害的概率。
Method: A survey was conducted in one village of Kunming Area, and then the population was divided into exposure group and control group according to the use of pesticides.
方法根据花卉种植情况，选择某县某村花卉种植者进行调查，根据农药使用情况将调查人群分为农药暴露组和非农药暴露组（即对照组）。
Results: The most influential parameters of sample size were susceptibility frequency of the genotype, environmental exposure factors in the population, and genetic modes.
结果：主要影响样本大小的参数为易感基因频率、环境因素暴露率、基因遗传方式，而疾病的发生率对样本量影响很小。
As a result, the total population was divided into four groups: control (44), low exposure (48), middle exposure (48) and high exposure (48).
因此所调查人群分为四组，其中对照组44人，低暴露组48人，中暴露组48人，高暴露组48人。
Relationship between electromagnetic field exposure and dementia: a population-based case-control study.
电磁场暴露与痴呆：基于人群的病例对照研究。
The character of exposure-response relationship between particulate matter and population mortality has been one of the critical and difficult problems in air pollution epidemiological study.
前言： 目前，针对空气颗粒物与人群死亡率暴露-反应关系特征的研究已经成为空气污染流行病学研究的关键和难点问题之一。
Consequently one of the conclusions drawn is that repeated exposure to low levels of HIV may produce a level of resistance to HIV in this population.
最终一个结论就是这种低风险的方式能够防止HIV在这些人群中蔓延。
Consequently one of the conclusions drawn is that repeated exposure to low levels of HIV may produce a level of resistance to HIV in this population.
结果的一个结论是，反复暴露于低剂量的艾滋病毒可能会产生一定程度的抵抗HIV在该人群。
Conclusions Environmental lead exposure is associated with an increased prevalence of dental caries in the us population.
结论：环境性铅接触与美国居民龋齿发生率增多相关。
Conclusions Environmental lead exposure is associated with an increased prevalence of dental caries in the us population.
结论：环境性铅接触与美国居民龋齿发生率增多相关。
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