They make a constant din and cause acute pollution.
这些摩托车喧嚣不断，还会造成严重污染。
If these targets were to be achieved, significant reductions in risks for acute and chronic health effects from air pollution can be expected.
如果能够实现这些目标，可望大量减少空气污染对健康带来的急性和慢性影响。
Indoor air pollution associated with the still-widespread use of biomass fuels kills nearly one million children annually, mostly as a result of acute respiratory infections.
与仍然广泛使用生物质燃料有关的室内空气污染每年造成约100万儿童死亡，主要由急性呼吸道感染引起。
Objective:To observe the acute harm of formaldehyde pollution in air to the polluted Osmanthus fragrans leaves.
结论：甲醛空气污染可以导致盆栽桂花叶片出现急性损害，并表现出明显的效应。
It is urgent that the acute problem of air pollution in the city should be solved.
该城市空气污染这一严重问题急须解决。
It is urgent that the acute problem of air pollution in the city be solved.
该城市空气污染这一严重问题亟须解决。
CONCLUSION: Ambient particulate pollution has potential acute adverse health effects on human.
结论大气粗细颗粒物污染具有潜在的急性人群健康危害。
Because of the reasons above, rural domestic pollution in these areas is especially acute.
由于上述原因，农村生活污染在边缘区尤为突出。
Because of the reasons above, rural domestic pollution in these areas is especially acute.
由于上述原因，农村生活污染在边缘区尤为突出。
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