AQD - Station Classification Submitted None Data Dictionary Vocabularies Eionet Data Dictionary Background Located such that its pollution levels are representative of the average exposure of the general population within the type of area under assessment. The pollution level should not be dominated by a single source type (e.g. traffic), unless that source type is typical within the area under assessment. The station should usually be representative of a wider area of at least several square kilometers. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Station Classification Industrial Located in close proximity to single industrial sources or industrial areas, in a location that should represent the highest concentrations to which the population within the zone are exposed to. A wide range of industrial sources can be considered here, including: a) thermal power generation, b) district heating plants, c) refineries, d) waste incineration/treatment plants, dump sites, e) mining, including gravel, oil, natural gas, f) airports or g) ports. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Station Classification Traffic Located in close proximity to a road, in a location that should represent the highest concentrations to which the population are exposed to within the zone. Located such that the pollution level for the specific pollutant is determined predominantly by the emissions from road traffic (i.e. not ship, railway, airplane, off-road) on distinct major roads. As per ANNEX III of DIRECTIVE 2008/50/EC, for all pollutants, traffic-orientated sampling probes shall be at least 25 m from the edge of major junctions and no more than 10 m from the kerbside. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Station Classification