Legend (Airbase/Particulate_matter_PM2_5)

Annual Mean (1) ≤10 10-20 20-25 25-30 > 30 based on daily values (2) ≤10 10-20 20-25 25-30 > 30 based on hourly values (3) ≤10 10-20 20-25 25-30 > 30 based on variable time intervals (4) ≤10 10-20 20-25 25-30 > 30 based on two daily value (5) ≤10 10-20 20-25 25-30 > 30 based on weekly values (6) ≤10 10-20 20-25 25-30 > 30 based on daily values (8) ≤10 10-20 20-25 25-30 > 30 based on hourly values (9) ≤10 10-20 20-25 25-30 > 30 based on variable time intervals (10) ≤10 10-20 20-25 25-30 > 30 based on two daily value (11) ≤10 10-20 20-25 25-30 > 30 based on weekly values (12) ≤10 10-20 20-25 25-30 > 30 based on daily values (14) ≤10 10-20 20-25 25-30 > 30 based on hourly values (15) ≤10 10-20 20-25 25-30 > 30 based on variable time intervals (16) ≤10 10-20 20-25 25-30 > 30 based on two daily value (17) ≤10 10-20 20-25 25-30 > 30 based on weekly values (18) ≤10 10-20 20-25 25-30 > 30 based on daily values (20) ≤10 10-20 20-25 25-30 > 30 based on hourly values (21) ≤10 10-20 20-25 25-30 > 30 based on variable time intervals (22) ≤10 10-20 20-25 25-30 > 30 based on two daily value (23) ≤10 10-20 20-25 25-30 > 30 based on weekly values (24) ≤10 10-20 20-25 25-30 > 30 based on daily values (26) ≤10 10-20 20-25 25-30 > 30 based on hourly values (27) ≤10 10-20 20-25 25-30 > 30 based on variable time intervals (28) ≤10 10-20 20-25 25-30 > 30 based on two daily value (29) ≤10 10-20 20-25 25-30 > 30 based on weekly values (30) ≤10 10-20 20-25 25-30 > 30 Airbase_Stations (31) Background Industrial Traffic Unknown <all other values>