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 04:00 del 21/10/2019 34

    3

    6 ug/m3

    11

    22 ug/m3

    --

    1 ug/m3

    34

    8.13 ug/m3

    6

    6.63 ug/m3

    7

    700 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 04:00 del 21/10/2019 10

    9

    20 ug/m3

    10

    21 ug/m3

    --

    --

    4

    4.13 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 04:00 del 21/10/2019 30

    13

    28 ug/m3

    4

    8 ug/m3

    --

    30

    7.13 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 05:00 del 21/10/2019 40

    28

    59 ug/m3

    3

    5 ug/m3

    --

    40

    9.5 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 05:00 del 21/10/2019 11

    6

    11 ug/m3

    5

    10 ug/m3

    --

    --

    11

    11.63 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 05:00 del 21/10/2019 7

    6

    14 ug/m3

    6

    12 ug/m3

    --

    --

    7

    7.75 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 05:00 del 21/10/2019 36

    3

    6 ug/m3

    14

    28 ug/m3

    --

    1 ug/m3

    36

    8.63 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 05:00 del 21/10/2019 18

    18

    37 ug/m3

    6

    11 ug/m3

    --

    --

    6

    6.88 ug/m3

    3

    300 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 04:00 del 21/10/2019 22

    11

    23 ug/m3

    15

    30 ug/m3

    --

    22

    5.38 ug/m3

    5

    5.63 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 05:00 del 21/10/2019 28

    28

    59 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    9

    2.25 ug/m3

    3

    3.5 ug/m3

    3

    400 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 04:00 del 21/10/2019 25

    8

    18 ug/m3

    25

    48 ug/m3

    --

    --

    8

    8.25 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 04:00 del 21/10/2019 27

    1

    2 ug/m3

    27

    54 ug/m3

    --

    24

    5.75 ug/m3

    8

    8.75 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 05:00 del 21/10/2019 8

    8

    17 ug/m3

    3

    5 ug/m3

    --

    --

    5

    5.63 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 04:00 del 21/10/2019 31

    5

    9 ug/m3

    18

    35 ug/m3

    --

    31

    7.38 ug/m3

    9

    9.5 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 05:00 del 21/10/2019 9

    9

    20.17 ug/m3

    8

    16 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 05:00 del 21/10/2019 18

    6

    12.71 ug/m3

    18

    36 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 05:00 del 21/10/2019 13

    13

    28.52 ug/m3

    13

    26 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 05:00 del 21/10/2019 11

    3

    6.11 ug/m3

    9

    18 ug/m3

    --

    11

    2.75 ug/m3

    4

    4.25 ug/m3

    --

    CASTELLANA 05:00 del 21/10/2019 13

    --

    13

    26 ug/m3

    --

    5

    1.25 ug/m3

    2

    2 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 05:00 del 21/10/2019 8

    --

    8

    17 ug/m3

    --

    5

    1.25 ug/m3

    2

    2.13 ug/m3

    --

    EL PARDO 05:00 del 21/10/2019 3

    2

    4.58 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 01:00 del 21/10/2019 20

    16

    33.47 ug/m3

    20

    39 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 05:00 del 21/10/2019 14

    11

    23.52 ug/m3

    14

    28 ug/m3

    3

    5 ug/m3

    6

    1.5 ug/m3

    3

    3 ug/m3

    3

    300 ug/m3
    FAROLILLO 05:00 del 21/10/2019 13

    1

    1.35 ug/m3

    13

    26 ug/m3

    --

    --

    7

    7.13 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 05:00 del 21/10/2019 32

    --

    20

    39 ug/m3

    --

    32

    7.75 ug/m3

    9

    9.88 ug/m3

    2

    200 ug/m3
    JUAN CARLOS I 05:00 del 21/10/2019 13

    13

    28.84 ug/m3

    4

    8 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 05:00 del 21/10/2019 15

    15

    31 ug/m3

    8

    17 ug/m3

    --

    --

    7

    7.13 ug/m3

    --

    MENDEZ ALVARO 05:00 del 21/10/2019 20

    --

    20

    40 ug/m3

    --

    8

    2 ug/m3

    3

    2.75 ug/m3

    --

    MORATALAZ 01:00 del 21/10/2019 10

    --

    10

    21 ug/m3

    3

    5 ug/m3

    --

    7

    7.5 ug/m3

    --

    PLAZA CASTILLA-CANAL 05:00 del 21/10/2019 21

    --

    7

    13 ug/m3

    --

    21

    5.13 ug/m3

    6

    6.63 ug/m3

    --

    PLAZA DE ESPAÑA 05:00 del 21/10/2019 8

    --

    8

    17 ug/m3

    4

    9 ug/m3

    --

    --

    3

    300 ug/m3
    PLAZA DEL CARMEN 01:00 del 21/10/2019 19

    19

    39.47 ug/m3

    17

    33 ug/m3

    3

    4 ug/m3

    --

    --

    5

    500 ug/m3
    PUENTE DE VALLECAS 05:00 del 21/10/2019 13

    --

    13

    26 ug/m3

    --

    --

    5

    4.88 ug/m3

    --

    RAMÓN Y CAJAL 01:00 del 21/10/2019 7

    --

    7

    14 ug/m3

    --

    --

    --

    --

    RETIRO 05:00 del 21/10/2019 12

    12

    25.23 ug/m3

    7

    13 ug/m3

    --

    --

    --

    --

    SANCHINARRO 05:00 del 21/10/2019 4

    --

    4

    7 ug/m3

    --

    --

    3

    3.75 ug/m3

    --

    TRES OLIVOS 05:00 del 21/10/2019 12

    12

    26.8 ug/m3

    11

    22 ug/m3

    --

    --

    2

    2.5 ug/m3

    --

    URBANIZACION EMBAJADA 05:00 del 21/10/2019 28

    --

    28

    57 ug/m3

    --

    --

    4

    3.88 ug/m3

    --

    VILLAVERDE 05:00 del 21/10/2019 26

    2

    3.08 ug/m3

    26

    52 ug/m3

    --

    --

    --

    --

    Móstoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 05:00 del 21/10/2019 22

    5

    10 ug/m3

    22

    44 ug/m3

    --

    1 ug/m3

    --

    9

    10 ug/m3

    10

    1000 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 05:00 del 21/10/2019 20

    20

    43 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    --

    3

    3.63 ug/m3

    3

    400 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 04:00 del 21/10/2019 11

    5

    10 ug/m3

    9

    19 ug/m3

    --

    --

    11

    12 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 05:00 del 21/10/2019 14

    14

    29 ug/m3

    2

    4 ug/m3

    --

    --

    10

    10.38 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 04:00 del 21/10/2019 13

    11

    24 ug/m3

    12

    25 ug/m3

    --

    13

    3 ug/m3

    5

    4.88 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 05:00 del 21/10/2019 52

    1

    2 ug/m3

    19

    38 ug/m3

    --

    52

    12.5 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 05:00 del 21/10/2019 15

    7

    16 ug/m3

    4

    7 ug/m3

    --

    1 ug/m3

    15

    3.5 ug/m3

    3

    3.75 ug/m3

    3

    300 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 05:00 del 21/10/2019 23

    17

    35 ug/m3

    4

    8 ug/m3

    --

    23

    5.63 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.