这份新报告不包括2002年以来的空气质量的变化。
The new report does not account for changes in air quality since 2002.
城市空气质量水平是以空气质量指数(API)来表征的，API的时空变化可以反映城市空气质量的变化过程。
Urban air quality level is token by air quality index (API), whose spatiotemporal change can reflect the change of urban air quality.
还排除了更广的空气质量的变化，但即使在污染程度较低的地区，居住在主要高速公路附近的儿童的健康更易受到危协。
Also factored out were broader variations in air quality, but "even in an area with low regional pollution, children living near a major roadway are a increased risk of health effects."
工厂的维修人员已认识到，一个总的集中空气过滤装置不可能始终高效率运转，其滤芯更换周期会引起压缩空气质量的变化。
It has been recognized that a centralized air filter is not running at high efficiency at all times or its cleaning cycles cause variation to the quality of pressurized air.
通过昆明市当前机动车尾气污染对城市空气质量的影响，分析其变化趋势。
The changing trend of vehicle tail gas pollution in Kunming is analyzed by investigating the impacts on air quality from tail gas emission.
人口的增长带来了粮食短缺、空气质量降低、天气状况变化等问题。
Human population growth is creating food shortages, problems of air quality, and changes in weather patterns.
官方的空气质量指数也未能表现出一天之内的空气质量变化模式。
Offcial indices also fail to capture patterns of variation within a day.
每当刮过大风、下过大雨之后，我们都能无误地感受到空气质量的显著变化。
And we can feel the difference that a strong wind or heavy rain makes to the quality of air.
对昭通市环境空气质量状况及其变化趋势进行了简要分析和评价，并针对其环境空气质量主要受SO2的影响，提出了对策措施和建议。
The paper analyzes and assesses the air environmental situation and its development trend of Zhaotong city. The air quality is affected by SO2 and points out countermeasures and Suggestions.
应用统计方法分析了淮阴区空气质量SO2、NO2、TSP的浓度时空分布的季节变化特征。
The characteristics of spatiotemporal seasonal changes of SO2 and NO2 and TSP in Huanyin are analyzed by statistical methods.
为了解气候舱周边空气质量对检测结果的影响，本文应用数学分析方法对气候舱内空气中甲醛本底浓度的变化规律进行了探析。
To investigate the impact of chamber ambient air quality on the testing results, mathematical analysis is performed to study the vibration trends of formaldehyde background concentration.
基于排放源以及风频的不均一，不同扇区来的空气质量能有很大变化。
Due to the uneven distributions of both the emission sources and the wind frequency, air quality from different wind sectors could be very variable.
根据南京市环境监测中心站大气国控点监测的空气质量数据，统计并分析了NO2和O3的污染变化特征及规律。
The monitoring data in state controlling air sampling sites have been statistically treated to analyze pollution situation and regularity of NO2 and O3 in Nanjing Area.
对巴彦浩特地区的空气质量现状及变化趋势进行分析，探讨空气质量变化的原因，并提出治理污染的措施与建议。
The status quo and trends of air quality of BA Yan Hot area are analyzed, and causes of air quality change are discussed. The measures and suggestions are put forward.
对巴彦浩特地区的空气质量现状及变化趋势进行分析，探讨空气质量变化的原因，并提出治理污染的措施与建议。
The status quo and trends of air quality of BA Yan Hot area are analyzed, and causes of air quality change are discussed. The measures and suggestions are put forward.
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