Check the air quality index in Barcelona according to the method used by the EPA (American Environmental Protection Agency) and its effects on health.

In order to calculate the air quality index, at Eltiempo.es we apply the formula suggested by the EPA, which calculates the index for each pollutant depending on its concentration.

The pollutants are:

  • -Particles (PM)
  • -Carbon monoxide (CO)
  • -Ozone (O3)
  • -Nitrogen dioxide (NO2)
  • -Sulphur dioxide (SO2)

When we have calculated the indices for each pollutant, we select the one with the most unfavorable value. That value is then considered to be the air quality index for that moment.

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    Stations

    Badalona AQI O3 NO2 SO2 PM2.5 PM10 CO
    Badalona (Mont-roig - Ausiàs March) 14:00 del 21/09/2018 48

    48

    104 ug/m3

    8

    17 ug/m3

    --

    1 ug/m3

    --

    --

    --

    Barberà del Vallès AQI O3 NO2 SO2 PM2.5 PM10 CO
    Barberà del Vallès (Moragues - Montserrat) 14:00 del 21/09/2018 29

    --

    29

    59 ug/m3

    --

    --

    --

    --

    Barcelona AQI O3 NO2 SO2 PM2.5 PM10 CO
    Barcelona (Ciutadella) 14:00 del 21/09/2018 39

    24

    51 ug/m3

    39

    77 ug/m3

    --

    --

    --

    --

    Barcelona (el Poblenou) 14:00 del 21/09/2018 20

    --

    20

    40 ug/m3

    --

    --

    --

    --

    Barcelona (Gràcia - Sant Gervasi) 14:00 del 21/09/2018 48

    26

    56 ug/m3

    48

    96 ug/m3

    3

    5 ug/m3

    --

    --

    7

    700 ug/m3
    Barcelona (l'Eixample) 14:00 del 21/09/2018 43

    25

    54 ug/m3

    43

    87 ug/m3

    3

    5 ug/m3

    --

    --

    6

    600 ug/m3
    Barcelona (Palau Reial) 14:00 del 21/09/2018 43

    43

    91 ug/m3

    12

    24 ug/m3

    1

    2 ug/m3

    --

    --

    2

    200 ug/m3
    Barcelona (parc de la Vall d'Hebron) 14:00 del 21/09/2018 34

    34

    73 ug/m3

    28

    56 ug/m3

    3

    5 ug/m3

    --

    --

    3

    300 ug/m3
    Barcelona (Sants) 12:00 del 21/09/2018 28

    --

    28

    56 ug/m3

    --

    --

    --

    --

    Berga AQI O3 NO2 SO2 PM2.5 PM10 CO
    Berga (poliesportiu) 14:00 del 21/09/2018 41

    41

    88 ug/m3

    5

    10 ug/m3

    3

    5 ug/m3

    --

    --

    5

    500 ug/m3
    Castellet i la Gornal AQI O3 NO2 SO2 PM2.5 PM10 CO
    Castellet i la Gornal (Clariana) 14:00 del 21/09/2018 3

    --

    3

    5 ug/m3

    --

    1 ug/m3

    --

    --

    --

    Cubelles AQI O3 NO2 SO2 PM2.5 PM10 CO
    Cubelles (poliesportiu) 14:00 del 21/09/2018 1

    --

    1

    2 ug/m3

    1

    3 ug/m3

    --

    --

    --

    El Prat de Llobregat AQI O3 NO2 SO2 PM2.5 PM10 CO
    El Prat de Llobregat (CEM Sagnier) 14:00 del 21/09/2018 46

    46

    100 ug/m3

    11

    22 ug/m3

    1

    2 ug/m3

    --

    --

    3

    300 ug/m3
    el Prat de Llobregat (jardins de la pau) 14:00 del 21/09/2018 14

    --

    14

    29 ug/m3

    1

    2 ug/m3

    --

    --

    --

    Gavà AQI O3 NO2 SO2 PM2.5 PM10 CO
    Gavà (parc del Mil·leni) 14:00 del 21/09/2018 80

    80

    127 ug/m3

    5

    9 ug/m3

    1

    2 ug/m3

    --

    --

    2

    200 ug/m3
    Granollers AQI O3 NO2 SO2 PM2.5 PM10 CO
    Granollers (Francesc Macià) 14:00 del 21/09/2018 67

    67

    120 ug/m3

    9

    19 ug/m3

    --

    --

    --

    --

    L' Hospitalet de Llobregat AQI O3 NO2 SO2 PM2.5 PM10 CO
    l'Hospitalet de Llobregat (av. del Torrent Gornal) 14:00 del 21/09/2018 14

    --

    14

    28 ug/m3

    --

    --

    --

    --

    Manlleu AQI O3 NO2 SO2 PM2.5 PM10 CO
    Manlleu (hospital comarcal) 14:00 del 21/09/2018 54

    54

    111 ug/m3

    6

    11 ug/m3

    --

    --

    --

    --

    Martorell AQI O3 NO2 SO2 PM2.5 PM10 CO
    Martorell (Canyameres - Claret) 14:00 del 21/09/2018 15

    --

    15

    30 ug/m3

    --

    --

    --

    --

    Mataró AQI O3 NO2 SO2 PM2.5 PM10 CO
    Mataró (passeig dels Molins) 05:00 del 21/09/2018 35

    35

    76 ug/m3

    7

    14 ug/m3

    1

    3 ug/m3

    --

    --

    2

    200 ug/m3
    Mollet del Vallès AQI O3 NO2 SO2 PM2.5 PM10 CO
    Mollet del Vallès (pista d'atletisme) 14:00 del 21/09/2018 13

    --

    13

    26 ug/m3

    --

    --

    --

    --

    Moncada i Reixac AQI O3 NO2 SO2 PM2.5 PM10 CO
    Montcada i Reixac (pl. de Lluís Companys) 13:00 del 21/09/2018 39

    39

    83 ug/m3

    17

    33 ug/m3

    6

    11 ug/m3

    --

    --

    6

    600 ug/m3
    Montseny AQI O3 NO2 SO2 PM2.5 PM10 CO
    Montseny (la Castanya) 14:00 del 21/09/2018 105

    105

    144 ug/m3

    5

    8.8 ug/m3

    1

    1.5 ug/m3

    --

    --

    1

    100 ug/m3
    Pallejà AQI O3 NO2 SO2 PM2.5 PM10 CO
    Pallejà (Roca de Vilana) 12:00 del 21/09/2018 26

    --

    26

    53 ug/m3

    --

    1 ug/m3

    --

    --

    --

    Rubi AQI O3 NO2 SO2 PM2.5 PM10 CO
    Rubí (ca n'Oriol) 14:00 del 21/09/2018 44

    44

    93 ug/m3

    18

    36 ug/m3

    1

    3 ug/m3

    --

    --

    2

    200 ug/m3
    Sabadell AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sabadell (Gran Via) 14:00 del 21/09/2018 48

    21

    46 ug/m3

    48

    95 ug/m3

    --

    --

    --

    --

    San Feliú de Llobregat AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Feliu de Llobregat (CEIP Martí i Pol) 14:00 del 21/09/2018 1

    --

    --

    1

    3 ug/m3

    --

    --

    --

    Sant Adrià de Besòs AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Adrià de Besòs (Olímpic) 14:00 del 21/09/2018 46

    46

    99 ug/m3

    12

    24 ug/m3

    --

    --

    --

    --

    Sant Andreu de la Barca AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Andreu de la Barca (CEIP Josep Pla) 14:00 del 21/09/2018 37

    --

    37

    73 ug/m3

    --

    --

    --

    --

    Sant Celoni AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Celoni (Carles Damm) 14:00 del 21/09/2018 71

    71

    122 ug/m3

    8

    15 ug/m3

    1

    2 ug/m3

    --

    --

    --

    Sant Cugat del Vallès AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Cugat del Vallès (parc de Sant Francesc) 14:00 del 21/09/2018 36

    36

    78 ug/m3

    30

    60 ug/m3

    --

    --

    --

    --

    Sant Vicenç dels Horts AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sant Vicenç dels Horts (Àlaba) 12:00 del 21/09/2018 24

    --

    24

    47 ug/m3

    3

    6 ug/m3

    --

    --

    --

    Sant Vicenç dels Horts (Ribot - Sant Miquel) 14:00 del 21/09/2018 45

    45

    97 ug/m3

    12

    24 ug/m3

    --

    1 ug/m3

    --

    --

    --

    Santa Coloma de Gramanet AQI O3 NO2 SO2 PM2.5 PM10 CO
    Santa Coloma de Gramenet (Balldovina) 14:00 del 21/09/2018 14

    --

    14

    29 ug/m3

    --

    --

    --

    --

    Santa Margarida i els Monjos AQI O3 NO2 SO2 PM2.5 PM10 CO
    Santa Margarida i els Monjos (la Ràpita) 13:00 del 21/09/2018 3

    --

    3

    5 ug/m3

    --

    --

    --

    --

    Santa Maria de Palautordera AQI O3 NO2 SO2 PM2.5 PM10 CO
    Santa Maria de Palautordera (Martí Boada) 14:00 del 21/09/2018 80

    80

    128 ug/m3

    --

    --

    --

    --

    --

    Santa Perpètua de Mogoda AQI O3 NO2 SO2 PM2.5 PM10 CO
    Santa Perpètua de Mogoda (Onze de Setembre) 14:00 del 21/09/2018 25

    --

    25

    49 ug/m3

    1

    3 ug/m3

    --

    --

    --

    Terrassa AQI O3 NO2 SO2 PM2.5 PM10 CO
    Terrassa (Pare Alegre) 14:00 del 21/09/2018 38

    38

    82 ug/m3

    37

    73 ug/m3

    --

    1 ug/m3

    --

    --

    14

    1400 ug/m3
    Tona AQI O3 NO2 SO2 PM2.5 PM10 CO
    Tona (zona esportiva) 14:00 del 21/09/2018 47

    47

    101 ug/m3

    2

    3 ug/m3

    --

    --

    --

    --

    Viladecans AQI O3 NO2 SO2 PM2.5 PM10 CO
    Viladecans (Atrium) 14:00 del 21/09/2018 77

    77

    125 ug/m3

    8

    15 ug/m3

    1

    2 ug/m3

    --

    --

    2

    200 ug/m3
    Vilanova i la Geltrú AQI O3 NO2 SO2 PM2.5 PM10 CO
    Vilanova i la Geltrú (pl. de les Danses de Vilanova) 09:00 del 21/09/2018 17

    11

    23 ug/m3

    17

    34 ug/m3

    --

    1 ug/m3

    --

    --

    3

    400 ug/m3
    Vilafranca del Penedès AQI O3 NO2 SO2 PM2.5 PM10 CO
    Vilafranca del Penedès (zona esportiva) 14:00 del 21/09/2018 44

    44

    96 ug/m3

    7

    13 ug/m3

    --

    --

    --

    --

    Air quality legend

    • 00 50

      Good. Air quality is satisfactory and does not pose a health risk or such health risk is very small.

    • 51 100

      Moderate. Air quality is acceptable. However, there may be moderate health concern for a small number of the population due to certain polluting agents. For example, people who are unusually sensitive to ozone may experience the symptoms of a respiratory condition.

    • 101 150

      Moderate sensitive groups. Members of sensitive groups may experience effects on their health. This implies that they are very likely to be affected by lower pollution levels. For example, people with lung diseases, the elderly and children are at greater risk when exposed to ozone, while people with lung or heart disease are at greater risk when exposed to particulate contamination. This level of contamination does not represent adverse health conditions for the general public.

    • 151 200

      Unhealthy. Anyone can start to experience effects on their health. Members of sensitive groups may experience more serious effects on their health.

    • 201 300

      Very unhealthy. At this level, a health emergency warning must be issued in order to prevent effects on the health of the entire population since everyone may experience negative effects on their health.

    • 301 500

      Hazardous for health. Hazardous values; it is very likely that the entire population will experience serious effects on their health. A health alert should be issued.