_id	road_id	the_geom	osm_id	osm_code	osm_fclass	osm_name	osm_ref	osm_oneway	osm_maxspeed	osm_layer	osm_bridge	osm_tunnel	NO2points	NO2drives	NO2_ugm3	NOpoints	NOdrives	NO_ugm3	CO2points	CO2drives	CO2_mgm3	COpoints	COdrives	CO_mgm3	O3points	O3drives	O3_ugm3	PM25points	PM25drives	PM25_ugm3