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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    Stations

    Alcalá de Henares AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCALÁ DE HENARES 03:00 del 18/08/2018 21

    21

    45 ug/m3

    2

    3 ug/m3

    --

    1 ug/m3

    --

    9

    10 ug/m3

    3

    300 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 03:00 del 18/08/2018 23

    23

    49 ug/m3

    1

    2 ug/m3

    --

    --

    7

    8 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 03:00 del 18/08/2018 33

    23

    50 ug/m3

    2

    4 ug/m3

    --

    33

    8 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 04:00 del 18/08/2018 31

    22

    48 ug/m3

    1

    2 ug/m3

    --

    31

    7.38 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 04:00 del 18/08/2018 19

    19

    40 ug/m3

    3

    6 ug/m3

    --

    --

    12

    12.63 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 04:00 del 18/08/2018 19

    19

    40 ug/m3

    2

    4 ug/m3

    --

    --

    7

    7.38 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 03:00 del 18/08/2018 26

    26

    55 ug/m3

    3

    5 ug/m3

    1

    2 ug/m3

    21

    5.13 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 03:00 del 18/08/2018 29

    29

    62 ug/m3

    2

    3 ug/m3

    --

    --

    11

    11.5 ug/m3

    3

    300 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 03:00 del 18/08/2018 19

    19

    42 ug/m3

    4

    8 ug/m3

    --

    --

    14

    15.63 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 04:00 del 18/08/2018 22

    22

    48 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    11

    2.75 ug/m3

    12

    12.63 ug/m3

    3

    400 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 03:00 del 18/08/2018 25

    25

    53 ug/m3

    6

    11 ug/m3

    --

    --

    14

    15.63 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 03:00 del 18/08/2018 21

    21

    46 ug/m3

    3

    5 ug/m3

    --

    --

    13

    14 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 03:00 del 18/08/2018 18

    18

    38 ug/m3

    3

    6 ug/m3

    --

    --

    7

    7.25 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 04:00 del 18/08/2018 21

    21

    45 ug/m3

    3

    5 ug/m3

    --

    --

    11

    11.5 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 02:00 del 18/08/2018 21

    21

    46.08 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 02:00 del 18/08/2018 19

    19

    42.57 ug/m3

    2

    4 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 02:00 del 18/08/2018 20

    20

    44.97 ug/m3

    2

    4 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 02:00 del 18/08/2018 22

    22

    47.43 ug/m3

    1

    1 ug/m3

    --

    --

    11

    11.88 ug/m3

    --

    CASTELLANA 02:00 del 18/08/2018 25

    --

    2

    3 ug/m3

    --

    25

    6 ug/m3

    12

    12.75 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 02:00 del 18/08/2018 30

    --

    2

    4 ug/m3

    --

    30

    7.13 ug/m3

    14

    15.5 ug/m3

    --

    EL PARDO 02:00 del 18/08/2018 24

    24

    52.38 ug/m3

    1

    1 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 02:00 del 18/08/2018 20

    20

    43.93 ug/m3

    3

    6 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 02:00 del 18/08/2018 58

    21

    46.2 ug/m3

    6

    11 ug/m3

    3

    4 ug/m3

    58

    15.38 ug/m3

    23

    24.88 ug/m3

    2

    200 ug/m3
    FAROLILLO 02:00 del 18/08/2018 20

    20

    43.98 ug/m3

    2

    3 ug/m3

    --

    --

    13

    13.88 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 02:00 del 18/08/2018 34

    --

    5

    9 ug/m3

    --

    34

    8.13 ug/m3

    23

    24.75 ug/m3

    3

    300 ug/m3
    JUAN CARLOS I 02:00 del 18/08/2018 18

    18

    38.08 ug/m3

    5

    10 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 03:00 del 18/08/2018 23

    23

    50 ug/m3

    2

    4 ug/m3

    --

    --

    8

    8.5 ug/m3

    --

    MENDEZ ALVARO 02:00 del 18/08/2018 33

    --

    4

    7 ug/m3

    --

    33

    7.88 ug/m3

    11

    12.25 ug/m3

    --

    MORATALAZ 02:00 del 18/08/2018 15

    --

    2

    3 ug/m3

    3

    5 ug/m3

    --

    15

    16.13 ug/m3

    --

    PLAZA CASTILLA-CANAL 02:00 del 18/08/2018 24

    --

    1

    1 ug/m3

    --

    24

    5.75 ug/m3

    12

    12.63 ug/m3

    --

    PLAZA DE ESPAÑA 02:00 del 18/08/2018 4

    --

    3

    5 ug/m3

    4

    9 ug/m3

    --

    --

    2

    200 ug/m3
    PLAZA DEL CARMEN 02:00 del 18/08/2018 19

    19

    39.59 ug/m3

    6

    12 ug/m3

    4

    8 ug/m3

    --

    --

    8

    800 ug/m3
    PUENTE DE VALLECAS 02:00 del 18/08/2018 12

    --

    2

    4 ug/m3

    --

    --

    12

    12.88 ug/m3

    --

    RAMÓN Y CAJAL 02:00 del 18/08/2018 2

    --

    2

    4 ug/m3

    --

    --

    --

    --

    RETIRO 02:00 del 18/08/2018 20

    20

    43.5 ug/m3

    2

    4 ug/m3

    --

    --

    --

    --

    SANCHINARRO 02:00 del 18/08/2018 11

    --

    1

    1 ug/m3

    --

    --

    11

    11.75 ug/m3

    --

    TRES OLIVOS 02:00 del 18/08/2018 23

    23

    49.17 ug/m3

    2

    4 ug/m3

    --

    --

    17

    18.25 ug/m3

    --

    URBANIZACION EMBAJADA 02:00 del 18/08/2018 11

    --

    2

    3 ug/m3

    --

    --

    11

    12 ug/m3

    --

    VILLAVERDE 02:00 del 18/08/2018 22

    22

    47.74 ug/m3

    2

    3 ug/m3

    --

    --

    --

    --

    Mostoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 04:00 del 18/08/2018 21

    21

    46 ug/m3

    3

    6 ug/m3

    --

    1 ug/m3

    --

    13

    13.63 ug/m3

    3

    400 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 04:00 del 18/08/2018 21

    21

    46 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    --

    8

    8.25 ug/m3

    3

    300 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 04:00 del 18/08/2018 19

    19

    42 ug/m3

    2

    4 ug/m3

    --

    --

    9

    9.63 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 04:00 del 18/08/2018 20

    20

    43 ug/m3

    2

    4 ug/m3

    --

    --

    9

    10.25 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 03:00 del 18/08/2018 36

    21

    45 ug/m3

    2

    3 ug/m3

    --

    36

    8.63 ug/m3

    18

    19.5 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 04:00 del 18/08/2018 21

    21

    45 ug/m3

    4

    8 ug/m3

    --

    21

    5 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 04:00 del 18/08/2018 37

    19

    40 ug/m3

    5

    9 ug/m3

    --

    1 ug/m3

    37

    8.88 ug/m3

    17

    18 ug/m3

    3

    300 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 04:00 del 18/08/2018 47

    24

    52 ug/m3

    2

    3 ug/m3

    --

    47

    11.25 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.