Air quality data (data stream C) – assessment regime 2015 (dataset)

The data stream C reports substance-specific classification of all assessment areas in relation to the lower and upper assessment thresholds (for ozone in relation to the long-term target values). The result of this assessment results in the requirements for the assessment methods to be used – fixed measurement, orientating measurement, modelling, objective estimation (link to data stream D).数据流C（data stream）报告了所有评估区域结合评估上下限值的特定物质分类（其中臭氧项的评估对应长期目标值）。该评估的结果明确了需采用的评估方法的相关要求——包括固定测量、定向测量、建模分析与客观估算（关联数据流D）。