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 00:00 del 13/07/2020 58

    25

    54 ug/m3

    8

    17 ug/m3

    1

    3 ug/m3

    58

    15.38 ug/m3

    24

    25.38 ug/m3

    5

    500 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 00:00 del 13/07/2020 34

    34

    73 ug/m3

    5

    10 ug/m3

    --

    --

    23

    24.5 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 00:00 del 13/07/2020 66

    28

    59 ug/m3

    9

    18 ug/m3

    --

    66

    19.13 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 23:00 del 12/07/2020 52

    34

    73 ug/m3

    2

    4 ug/m3

    --

    52

    12.38 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 00:00 del 13/07/2020 29

    19

    41 ug/m3

    3

    6 ug/m3

    --

    --

    29

    30.88 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 00:00 del 13/07/2020 27

    27

    57 ug/m3

    5

    10 ug/m3

    --

    --

    23

    24.5 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 00:00 del 13/07/2020 57

    19

    42 ug/m3

    14

    29 ug/m3

    --

    1 ug/m3

    57

    14.88 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 00:00 del 13/07/2020 35

    35

    76 ug/m3

    6

    12 ug/m3

    --

    --

    21

    22.5 ug/m3

    5

    500 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 00:00 del 13/07/2020 47

    30

    63 ug/m3

    5

    9 ug/m3

    --

    47

    11.25 ug/m3

    21

    22.63 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 00:00 del 13/07/2020 62

    39

    83 ug/m3

    2

    3 ug/m3

    1

    2 ug/m3

    62

    17.5 ug/m3

    20

    22 ug/m3

    5

    500 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 09:00 del 10/07/2020 --

    --

    --

    --

    --

    --

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 00:00 del 13/07/2020 50

    31

    68 ug/m3

    7

    13 ug/m3

    --

    50

    11.88 ug/m3

    24

    25.88 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 00:00 del 13/07/2020 29

    29

    61 ug/m3

    5

    9 ug/m3

    --

    --

    20

    21.13 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 00:00 del 13/07/2020 57

    31

    66 ug/m3

    7

    14 ug/m3

    --

    57

    15.13 ug/m3

    28

    30 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 00:00 del 13/07/2020 38

    38

    81.6 ug/m3

    6

    11 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 00:00 del 13/07/2020 28

    28

    59.53 ug/m3

    13

    26 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 00:00 del 13/07/2020 35

    35

    75.71 ug/m3

    5

    10 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 00:00 del 13/07/2020 52

    35

    76.76 ug/m3

    4

    7 ug/m3

    --

    52

    12.5 ug/m3

    25

    26.88 ug/m3

    --

    CASTELLANA 00:00 del 13/07/2020 29

    --

    4

    8 ug/m3

    --

    29

    7 ug/m3

    17

    18 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 23:00 del 12/07/2020 54

    --

    7

    13 ug/m3

    --

    54

    13.5 ug/m3

    27

    28.63 ug/m3

    --

    EL PARDO 00:00 del 13/07/2020 34

    34

    74.67 ug/m3

    4

    7 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 23:00 del 12/07/2020 31

    31

    65.64 ug/m3

    9

    18 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 00:00 del 13/07/2020 52

    29

    61.14 ug/m3

    12

    24 ug/m3

    4

    9 ug/m3

    52

    12.75 ug/m3

    23

    24.63 ug/m3

    2

    200 ug/m3
    FAROLILLO 00:00 del 13/07/2020 35

    35

    75.08 ug/m3

    7

    14 ug/m3

    --

    --

    27

    29.13 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 00:00 del 13/07/2020 47

    --

    13

    27 ug/m3

    --

    47

    11.38 ug/m3

    17

    17.88 ug/m3

    2

    200 ug/m3
    JUAN CARLOS I 00:00 del 13/07/2020 31

    31

    67.85 ug/m3

    5

    10 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 00:00 del 13/07/2020 37

    37

    80 ug/m3

    4

    7 ug/m3

    --

    --

    22

    23.88 ug/m3

    --

    MENDEZ ALVARO 00:00 del 13/07/2020 29

    --

    6

    11 ug/m3

    --

    29

    7 ug/m3

    18

    19 ug/m3

    --

    MORATALAZ 23:00 del 12/07/2020 25

    --

    4

    8 ug/m3

    4

    7 ug/m3

    --

    25

    26.5 ug/m3

    --

    PLAZA CASTILLA-CANAL 00:00 del 13/07/2020 47

    --

    4

    7 ug/m3

    --

    47

    11.38 ug/m3

    22

    23.75 ug/m3

    --

    PLAZA DE ESPAÑA 00:00 del 13/07/2020 6

    --

    6

    11 ug/m3

    3

    4 ug/m3

    --

    --

    1

    100 ug/m3
    PLAZA DEL CARMEN 23:00 del 12/07/2020 35

    35

    75.59 ug/m3

    7

    14 ug/m3

    3

    6 ug/m3

    --

    --

    2

    200 ug/m3
    PUENTE DE VALLECAS 23:00 del 12/07/2020 25

    --

    7

    14 ug/m3

    --

    --

    25

    26.88 ug/m3

    --

    RAMÓN Y CAJAL 00:00 del 13/07/2020 6

    --

    6

    12 ug/m3

    --

    --

    --

    --

    RETIRO 23:00 del 12/07/2020 33

    33

    72.56 ug/m3

    6

    11 ug/m3

    --

    --

    --

    --

    SANCHINARRO 00:00 del 13/07/2020 16

    --

    6

    11 ug/m3

    --

    --

    16

    17.13 ug/m3

    --

    TRES OLIVOS 23:00 del 12/07/2020 36

    36

    77.32 ug/m3

    6

    11 ug/m3

    --

    --

    19

    20.38 ug/m3

    --

    URBANIZACION EMBAJADA 00:00 del 13/07/2020 42

    --

    5

    10 ug/m3

    --

    --

    42

    45 ug/m3

    --

    VILLAVERDE 23:00 del 12/07/2020 31

    31

    65.65 ug/m3

    7

    14 ug/m3

    --

    --

    --

    --

    Móstoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 00:00 del 13/07/2020 27

    27

    58 ug/m3

    8

    16 ug/m3

    --

    1 ug/m3

    --

    25

    26.75 ug/m3

    5

    500 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 00:00 del 13/07/2020 28

    28

    60 ug/m3

    2

    4 ug/m3

    --

    1 ug/m3

    --

    24

    25.88 ug/m3

    3

    400 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 00:00 del 13/07/2020 31

    31

    67 ug/m3

    6

    11 ug/m3

    --

    --

    25

    27.38 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 00:00 del 13/07/2020 33

    33

    72 ug/m3

    5

    10 ug/m3

    --

    --

    23

    24.5 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 23:00 del 12/07/2020 49

    33

    72 ug/m3

    5

    9 ug/m3

    --

    49

    11.75 ug/m3

    30

    32 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 00:00 del 13/07/2020 54

    28

    60 ug/m3

    5

    9 ug/m3

    --

    54

    13.75 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 23:00 del 12/07/2020 64

    37

    80 ug/m3

    2

    4 ug/m3

    --

    1 ug/m3

    64

    18.5 ug/m3

    34

    36.25 ug/m3

    3

    400 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 00:00 del 13/07/2020 62

    20

    43 ug/m3

    4

    7 ug/m3

    --

    62

    17.13 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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