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 18:00 del 22/01/2020 65

    24

    51 ug/m3

    15

    30 ug/m3

    --

    1 ug/m3

    65

    18.63 ug/m3

    37

    39.75 ug/m3

    6

    600 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 19:00 del 22/01/2020 40

    23

    50 ug/m3

    15

    30 ug/m3

    --

    --

    40

    43 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 18:00 del 22/01/2020 52

    18

    37 ug/m3

    22

    43 ug/m3

    --

    52

    12.5 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 19:00 del 22/01/2020 80

    35

    76 ug/m3

    3

    6 ug/m3

    --

    80

    25.75 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 18:00 del 22/01/2020 29

    29

    62 ug/m3

    8

    17 ug/m3

    --

    --

    22

    23.88 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 19:00 del 22/01/2020 33

    9

    20 ug/m3

    22

    43 ug/m3

    --

    --

    33

    35.5 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 19:00 del 22/01/2020 64

    17

    36 ug/m3

    23

    46 ug/m3

    1

    2 ug/m3

    64

    18.38 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 19:00 del 22/01/2020 41

    16

    34 ug/m3

    18

    35 ug/m3

    --

    --

    41

    44.63 ug/m3

    7

    700 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 19:00 del 22/01/2020 69

    17

    35 ug/m3

    23

    46 ug/m3

    --

    69

    20.5 ug/m3

    39

    41.88 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 19:00 del 22/01/2020 60

    35

    75 ug/m3

    1

    1 ug/m3

    --

    1 ug/m3

    60

    16.38 ug/m3

    45

    48.5 ug/m3

    3

    400 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 19:00 del 22/01/2020 43

    4

    8 ug/m3

    43

    87 ug/m3

    --

    --

    28

    30.63 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 19:00 del 22/01/2020 58

    8

    18 ug/m3

    32

    63 ug/m3

    --

    58

    15.5 ug/m3

    31

    34 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 19:00 del 22/01/2020 38

    31

    66 ug/m3

    6

    12 ug/m3

    --

    --

    38

    40.88 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 18:00 del 22/01/2020 54

    14

    30 ug/m3

    26

    52 ug/m3

    --

    54

    13.38 ug/m3

    33

    35.75 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 19:00 del 22/01/2020 19

    19

    40.78 ug/m3

    17

    34 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 19:00 del 22/01/2020 25

    25

    53.92 ug/m3

    10

    21 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 19:00 del 22/01/2020 21

    17

    36.72 ug/m3

    21

    41 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 20:00 del 22/01/2020 47

    17

    36.76 ug/m3

    17

    34 ug/m3

    --

    47

    11.38 ug/m3

    28

    30.5 ug/m3

    --

    CASTELLANA 20:00 del 22/01/2020 55

    --

    17

    33 ug/m3

    --

    55

    14 ug/m3

    33

    35.88 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 20:00 del 22/01/2020 61

    --

    29

    59 ug/m3

    --

    61

    16.88 ug/m3

    22

    24.25 ug/m3

    --

    EL PARDO 19:00 del 22/01/2020 26

    26

    56.89 ug/m3

    9

    19 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 20:00 del 22/01/2020 32

    13

    27.66 ug/m3

    32

    63 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 20:00 del 22/01/2020 52

    8

    18 ug/m3

    35

    69 ug/m3

    4

    7 ug/m3

    52

    12.75 ug/m3

    35

    37.38 ug/m3

    5

    500 ug/m3
    FAROLILLO 19:00 del 22/01/2020 31

    8

    17.35 ug/m3

    26

    53 ug/m3

    --

    --

    31

    33 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 19:00 del 22/01/2020 53

    --

    53

    106 ug/m3

    --

    52

    12.75 ug/m3

    25

    27.5 ug/m3

    7

    700 ug/m3
    JUAN CARLOS I 20:00 del 22/01/2020 24

    24

    51.38 ug/m3

    8

    16 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 18:00 del 22/01/2020 29

    18

    38 ug/m3

    22

    43 ug/m3

    --

    --

    29

    31 ug/m3

    --

    MENDEZ ALVARO 19:00 del 22/01/2020 40

    --

    29

    58 ug/m3

    --

    40

    9.5 ug/m3

    22

    24 ug/m3

    --

    MORATALAZ 20:00 del 22/01/2020 35

    --

    15

    31 ug/m3

    9

    16 ug/m3

    --

    35

    37.88 ug/m3

    --

    PLAZA CASTILLA-CANAL 20:00 del 22/01/2020 34

    --

    16

    32 ug/m3

    --

    34

    8.25 ug/m3

    20

    21.63 ug/m3

    --

    PLAZA DE ESPAÑA 12:00 del 20/01/2020 --

    --

    --

    --

    --

    --

    --

    PLAZA DEL CARMEN 20:00 del 22/01/2020 28

    17

    36.18 ug/m3

    28

    56 ug/m3

    1

    3 ug/m3

    --

    --

    6

    600 ug/m3
    PUENTE DE VALLECAS 20:00 del 22/01/2020 37

    --

    21

    41 ug/m3

    --

    --

    37

    40.25 ug/m3

    --

    RAMÓN Y CAJAL 19:00 del 22/01/2020 27

    --

    27

    54 ug/m3

    --

    --

    --

    --

    RETIRO 19:00 del 22/01/2020 21

    14

    30.68 ug/m3

    21

    42 ug/m3

    --

    --

    --

    --

    SANCHINARRO 19:00 del 22/01/2020 31

    --

    13

    26 ug/m3

    --

    --

    31

    33.38 ug/m3

    --

    TRES OLIVOS 19:00 del 22/01/2020 28

    25

    54.13 ug/m3

    10

    21 ug/m3

    --

    --

    28

    30.75 ug/m3

    --

    URBANIZACION EMBAJADA 20:00 del 22/01/2020 37

    --

    12

    25 ug/m3

    --

    --

    37

    39.75 ug/m3

    --

    VILLAVERDE 19:00 del 22/01/2020 20

    7

    16.86 ug/m3

    20

    39 ug/m3

    --

    --

    --

    --

    Móstoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 19:00 del 22/01/2020 36

    6

    13 ug/m3

    36

    71 ug/m3

    --

    1 ug/m3

    --

    29

    30.88 ug/m3

    9

    900 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 19:00 del 22/01/2020 37

    31

    66 ug/m3

    2

    3 ug/m3

    --

    1 ug/m3

    --

    37

    40.13 ug/m3

    3

    300 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 18:00 del 22/01/2020 32

    26

    56 ug/m3

    14

    29 ug/m3

    --

    --

    32

    34.25 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 18:00 del 22/01/2020 27

    25

    53 ug/m3

    8

    17 ug/m3

    --

    --

    27

    29.13 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 18:00 del 22/01/2020 63

    28

    60 ug/m3

    15

    31 ug/m3

    --

    63

    17.75 ug/m3

    38

    40.63 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 18:00 del 22/01/2020 42

    24

    51 ug/m3

    14

    29 ug/m3

    --

    42

    10 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 19:00 del 22/01/2020 52

    24

    52 ug/m3

    6

    11 ug/m3

    --

    1 ug/m3

    52

    12.5 ug/m3

    30

    32 ug/m3

    9

    900 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 19:00 del 22/01/2020 70

    15

    31 ug/m3

    24

    47 ug/m3

    --

    70

    21 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.