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 25/03/2019 48

    48

    103 ug/m3

    8

    17 ug/m3

    --

    1 ug/m3

    35

    8.5 ug/m3

    12

    13 ug/m3

    3

    400 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 18:00 del 25/03/2019 45

    45

    98 ug/m3

    6

    12 ug/m3

    --

    --

    13

    13.75 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 18:00 del 25/03/2019 52

    46

    99 ug/m3

    10

    21 ug/m3

    --

    52

    12.38 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 18:00 del 25/03/2019 49

    47

    102 ug/m3

    2

    4 ug/m3

    --

    49

    11.75 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 18:00 del 25/03/2019 44

    44

    95 ug/m3

    4

    7 ug/m3

    --

    --

    11

    12.25 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 18:00 del 25/03/2019 46

    46

    99 ug/m3

    4

    8 ug/m3

    --

    --

    16

    17.13 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 18:00 del 25/03/2019 47

    47

    102 ug/m3

    8

    15 ug/m3

    1

    2 ug/m3

    23

    5.63 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 18:00 del 25/03/2019 37

    37

    80 ug/m3

    10

    21 ug/m3

    --

    --

    18

    19 ug/m3

    8

    800 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 18:00 del 25/03/2019 35

    35

    76 ug/m3

    20

    39 ug/m3

    --

    30

    7.25 ug/m3

    14

    15.38 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 18:00 del 25/03/2019 49

    49

    105 ug/m3

    1

    2 ug/m3

    1

    2 ug/m3

    29

    7 ug/m3

    13

    13.5 ug/m3

    6

    600 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 18:00 del 25/03/2019 39

    39

    84 ug/m3

    11

    22 ug/m3

    --

    --

    18

    19.25 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 18:00 del 25/03/2019 46

    45

    98 ug/m3

    7

    13 ug/m3

    --

    46

    11 ug/m3

    39

    42.63 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 18:00 del 25/03/2019 48

    48

    104 ug/m3

    3

    5 ug/m3

    --

    --

    10

    10.75 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 18:00 del 25/03/2019 43

    43

    92 ug/m3

    8

    16 ug/m3

    --

    24

    5.75 ug/m3

    17

    18.75 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 18:00 del 25/03/2019 37

    37

    80.31 ug/m3

    5

    9 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 18:00 del 25/03/2019 47

    47

    101.8 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 18:00 del 25/03/2019 42

    42

    90.18 ug/m3

    9

    18 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 18:00 del 25/03/2019 46

    46

    100.1 ug/m3

    4

    8 ug/m3

    --

    31

    7.5 ug/m3

    15

    16.13 ug/m3

    --

    CASTELLANA 18:00 del 25/03/2019 40

    --

    5

    9 ug/m3

    --

    40

    9.63 ug/m3

    17

    18.38 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 18:00 del 25/03/2019 32

    --

    13

    26 ug/m3

    --

    32

    7.75 ug/m3

    18

    19.13 ug/m3

    --

    EL PARDO 18:00 del 25/03/2019 47

    47

    102.7 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 18:00 del 25/03/2019 36

    36

    78.98 ug/m3

    18

    35 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 18:00 del 25/03/2019 39

    31

    68.12 ug/m3

    28

    57 ug/m3

    4

    9 ug/m3

    39

    9.25 ug/m3

    12

    12.75 ug/m3

    1

    100 ug/m3
    FAROLILLO 18:00 del 25/03/2019 47

    47

    102.9 ug/m3

    8

    16 ug/m3

    --

    --

    18

    19.63 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 18:00 del 25/03/2019 52

    --

    34

    68 ug/m3

    --

    52

    12.38 ug/m3

    23

    25.13 ug/m3

    3

    300 ug/m3
    JUAN CARLOS I 18:00 del 25/03/2019 46

    46

    100.7 ug/m3

    2

    4 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 18:00 del 25/03/2019 37

    37

    80 ug/m3

    9

    18 ug/m3

    --

    --

    11

    11.63 ug/m3

    --

    MENDEZ ALVARO 17:00 del 25/03/2019 21

    --

    11

    22 ug/m3

    --

    21

    5.13 ug/m3

    11

    11.75 ug/m3

    --

    MORATALAZ 18:00 del 25/03/2019 17

    --

    8

    15 ug/m3

    10

    19 ug/m3

    --

    17

    18.75 ug/m3

    --

    PLAZA CASTILLA-CANAL 18:00 del 25/03/2019 37

    --

    8

    17 ug/m3

    --

    37

    8.88 ug/m3

    17

    18.75 ug/m3

    --

    PLAZA DE ESPAÑA 18:00 del 25/03/2019 16

    --

    16

    32 ug/m3

    9

    15 ug/m3

    --

    --

    3

    300 ug/m3
    PLAZA DEL CARMEN 17:00 del 25/03/2019 27

    27

    58.05 ug/m3

    16

    32 ug/m3

    7

    12 ug/m3

    --

    --

    9

    900 ug/m3
    PUENTE DE VALLECAS 18:00 del 25/03/2019 8

    --

    8

    16 ug/m3

    --

    --

    8

    8.38 ug/m3

    --

    RAMÓN Y CAJAL 18:00 del 25/03/2019 10

    --

    10

    21 ug/m3

    --

    --

    --

    --

    RETIRO 18:00 del 25/03/2019 46

    46

    100.3 ug/m3

    5

    10 ug/m3

    --

    --

    --

    --

    SANCHINARRO 18:00 del 25/03/2019 7

    --

    7

    14 ug/m3

    --

    --

    5

    5.25 ug/m3

    --

    TRES OLIVOS 18:00 del 25/03/2019 47

    47

    102.2 ug/m3

    5

    10 ug/m3

    --

    --

    5

    5.13 ug/m3

    --

    URBANIZACION EMBAJADA 18:00 del 25/03/2019 16

    --

    10

    20 ug/m3

    --

    --

    16

    17.63 ug/m3

    --

    VILLAVERDE 18:00 del 25/03/2019 44

    44

    95.56 ug/m3

    7

    13 ug/m3

    --

    --

    --

    --

    Móstoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 18:00 del 25/03/2019 38

    38

    82 ug/m3

    7

    14 ug/m3

    --

    1 ug/m3

    --

    14

    14.75 ug/m3

    6

    600 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 18:00 del 25/03/2019 50

    50

    107 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    --

    10

    10.88 ug/m3

    2

    200 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 18:00 del 25/03/2019 40

    40

    85 ug/m3

    9

    18 ug/m3

    --

    --

    17

    18.75 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 18:00 del 25/03/2019 67

    67

    120 ug/m3

    2

    4 ug/m3

    --

    --

    14

    15.5 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 12:00 del 25/03/2019 57

    44

    94 ug/m3

    7

    13 ug/m3

    --

    57

    15.13 ug/m3

    17

    17.88 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 18:00 del 25/03/2019 77

    51

    110 ug/m3

    5

    9 ug/m3

    --

    77

    24.63 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 18:00 del 25/03/2019 61

    61

    116 ug/m3

    3

    5 ug/m3

    --

    1 ug/m3

    33

    7.88 ug/m3

    25

    26.75 ug/m3

    6

    600 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 18:00 del 25/03/2019 46

    45

    98 ug/m3

    3

    6 ug/m3

    --

    46

    11 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.