Growing levels of pollution represent a serious health hazard to the local population.

日益严重的污染对当地人民的健康构成了重大威胁。

《牛津词典》

The polio drive has demonstrated that it is possible to achieve very high rates of population coverage despite weak health infrastructures and high levels of poverty.

脊灰运动表明，尽管存在薄弱的卫生基础设施和高水平的贫穷，也有可能实现很高的人口覆盖率。

youdao

He notes that New Orleans is almost back to its pre-Katrina population levels, and reckons that some of those arrivals are people excited by the state's potential.

他表示新奥尔良的人口数量已经回到了卡特里娜飓风侵袭前的水平，并认为其中一部分人是冲着该州的发展潜力而赶来的。

youdao

" ...such as relatively low levels of malaria risk to start with, political stability, a good health system and low levels of population movement bringing in infections from elsewhere."

VOA: special.2010.11.03

Some believe that population is stable in contrast to the eastern portion of the stock which is continuing to decline at probably lower population levels."

VOA: standard.2010.03.04

Some economists say prices for rice, the staple food for much of the world's population, could be returning to levels that sparked inflation fears in much of Asia last year.

VOA: standard.2009.12.17

Ofsted said the inspections were being carried out to find out why there were differences in standards between local authorities with similar demographics, such as population and levels of deprivation.

BBC: Coventry primary schools face inspections

The States will ask people for their views on how to control population levels ahead of a debate in March.

BBC: Cap on Jersey population possible says minister

The health board also said it was having difficulty coping with capacity at the Royal Infirmary of Edinburgh because of rising population levels in Lothian.

BBC: Hospital ward