Check the air quality index in Madrid 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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    Estaciones de Madrid

    Alcalá de Henares AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCALÁ DE HENARES 16:00 del 20/09/2020 41

    41

    88 ug/m3

    2

    4 ug/m3

    1

    3 ug/m3

    35

    8.5 ug/m3

    13

    14 ug/m3

    5

    500 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 16:00 del 20/09/2020 36

    36

    78 ug/m3

    3

    5 ug/m3

    --

    --

    11

    11.88 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 16:00 del 20/09/2020 37

    37

    80 ug/m3

    1

    2 ug/m3

    --

    18

    4.38 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 16:00 del 20/09/2020 34

    34

    73 ug/m3

    3

    5 ug/m3

    --

    23

    5.63 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 16:00 del 20/09/2020 35

    35

    75 ug/m3

    2

    4 ug/m3

    --

    --

    9

    9.25 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 16:00 del 20/09/2020 37

    37

    79 ug/m3

    2

    3 ug/m3

    --

    --

    11

    11.5 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 16:00 del 20/09/2020 25

    25

    54 ug/m3

    3

    5 ug/m3

    --

    1 ug/m3

    9

    2.25 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 16:00 del 20/09/2020 31

    31

    66 ug/m3

    2

    3 ug/m3

    --

    --

    8

    9 ug/m3

    7

    700 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 16:00 del 20/09/2020 39

    39

    84 ug/m3

    2

    3 ug/m3

    --

    32

    7.63 ug/m3

    10

    11.13 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 16:00 del 20/09/2020 33

    33

    71 ug/m3

    1

    1 ug/m3

    1

    2 ug/m3

    31

    7.5 ug/m3

    10

    10.38 ug/m3

    6

    600 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 16:00 del 20/09/2020 36

    36

    78 ug/m3

    1

    2 ug/m3

    --

    --

    7

    8 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 16:00 del 20/09/2020 38

    38

    81 ug/m3

    3

    5 ug/m3

    --

    35

    8.5 ug/m3

    15

    16 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 16:00 del 20/09/2020 36

    36

    78 ug/m3

    2

    3 ug/m3

    --

    --

    11

    11.38 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 16:00 del 20/09/2020 36

    36

    77 ug/m3

    3

    6 ug/m3

    --

    14

    3.38 ug/m3

    6

    6.25 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 16:00 del 20/09/2020 42

    42

    89.61 ug/m3

    4

    7 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 16:00 del 20/09/2020 38

    38

    82.93 ug/m3

    3

    5 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 16:00 del 20/09/2020 31

    31

    66.54 ug/m3

    3

    5 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 16:00 del 20/09/2020 37

    37

    80.99 ug/m3

    1

    1 ug/m3

    --

    24

    5.75 ug/m3

    9

    9.75 ug/m3

    --

    CASTELLANA 16:00 del 20/09/2020 19

    --

    4

    8 ug/m3

    --

    19

    4.63 ug/m3

    9

    9.25 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 16:00 del 20/09/2020 40

    --

    3

    5 ug/m3

    --

    40

    9.5 ug/m3

    14

    15.25 ug/m3

    --

    EL PARDO 16:00 del 20/09/2020 37

    37

    80.54 ug/m3

    1

    2 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 16:00 del 20/09/2020 31

    31

    67.93 ug/m3

    7

    13 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 16:00 del 20/09/2020 32

    28

    59.93 ug/m3

    8

    15 ug/m3

    4

    9 ug/m3

    32

    7.75 ug/m3

    13

    13.63 ug/m3

    2

    200 ug/m3
    FAROLILLO 15:00 del 20/09/2020 37

    37

    79.65 ug/m3

    4

    7 ug/m3

    --

    --

    15

    16.5 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 16:00 del 20/09/2020 26

    --

    6

    11 ug/m3

    --

    26

    6.13 ug/m3

    9

    9.5 ug/m3

    --

    JUAN CARLOS I 16:00 del 20/09/2020 34

    34

    74.66 ug/m3

    2

    4 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 16:00 del 20/09/2020 37

    37

    79 ug/m3

    1

    2 ug/m3

    --

    --

    7

    7.38 ug/m3

    --

    MENDEZ ALVARO 16:00 del 20/09/2020 20

    --

    2

    4 ug/m3

    --

    20

    4.88 ug/m3

    8

    9.13 ug/m3

    --

    MORATALAZ 15:00 del 20/09/2020 12

    --

    3

    6 ug/m3

    4

    9 ug/m3

    --

    12

    12.63 ug/m3

    --

    PLAZA CASTILLA-CANAL 16:00 del 20/09/2020 26

    --

    5

    10 ug/m3

    --

    26

    6.13 ug/m3

    11

    12 ug/m3

    --

    PLAZA DE ESPAÑA 15:00 del 20/09/2020 4

    --

    3

    6 ug/m3

    4

    7 ug/m3

    --

    --

    1

    100 ug/m3
    PLAZA DEL CARMEN 16:00 del 20/09/2020 36

    36

    78.37 ug/m3

    3

    5 ug/m3

    4

    8 ug/m3

    --

    --

    2

    200 ug/m3
    PUENTE DE VALLECAS 15:00 del 20/09/2020 10

    --

    5

    9 ug/m3

    --

    --

    10

    10.88 ug/m3

    --

    RAMÓN Y CAJAL 15:00 del 20/09/2020 4

    --

    4

    7 ug/m3

    --

    --

    --

    --

    RETIRO 16:00 del 20/09/2020 37

    37

    79.26 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    SANCHINARRO 15:00 del 20/09/2020 52

    --

    2

    4 ug/m3

    --

    --

    52

    57 ug/m3

    --

    TRES OLIVOS 16:00 del 20/09/2020 35

    35

    75.92 ug/m3

    3

    6 ug/m3

    --

    --

    8

    8.88 ug/m3

    --

    URBANIZACION EMBAJADA 15:00 del 20/09/2020 13

    --

    2

    3 ug/m3

    --

    --

    13

    13.75 ug/m3

    --

    VILLAVERDE 16:00 del 20/09/2020 34

    34

    73.68 ug/m3

    5

    9 ug/m3

    --

    --

    --

    --

    Móstoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 16:00 del 20/09/2020 36

    36

    77 ug/m3

    2

    3 ug/m3

    --

    1 ug/m3

    --

    6

    7 ug/m3

    3

    400 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 16:00 del 20/09/2020 39

    39

    84 ug/m3

    2

    3 ug/m3

    --

    1 ug/m3

    --

    9

    9.75 ug/m3

    6

    600 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 16:00 del 20/09/2020 39

    39

    83 ug/m3

    2

    4 ug/m3

    --

    --

    7

    7.38 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 16:00 del 20/09/2020 36

    36

    78 ug/m3

    1

    1 ug/m3

    --

    --

    9

    9.5 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 16:00 del 20/09/2020 38

    38

    82 ug/m3

    3

    5 ug/m3

    --

    18

    4.25 ug/m3

    5

    5 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 16:00 del 20/09/2020 38

    38

    81 ug/m3

    2

    3 ug/m3

    --

    17

    4 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 16:00 del 20/09/2020 37

    37

    79 ug/m3

    1

    2 ug/m3

    1

    2 ug/m3

    16

    3.88 ug/m3

    8

    8.13 ug/m3

    1

    100 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 16:00 del 20/09/2020 37

    37

    79 ug/m3

    2

    4 ug/m3

    --

    13

    3.13 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.


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