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 14:00 del 21/09/2018 61

    61

    115 ug/m3

    11

    23 ug/m3

    --

    1 ug/m3

    --

    17

    18.25 ug/m3

    5

    500 ug/m3
    Alcobendas AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCOBENDAS 14:00 del 21/09/2018 51

    51

    109 ug/m3

    15

    30 ug/m3

    --

    --

    25

    27.25 ug/m3

    --

    Alcorcón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALCORCÓN 14:00 del 21/09/2018 54

    54

    111 ug/m3

    15

    30 ug/m3

    --

    53

    13.13 ug/m3

    --

    --

    Algete AQI O3 NO2 SO2 PM2.5 PM10 CO
    ALGETE 14:00 del 21/09/2018 66

    64

    118 ug/m3

    4

    8 ug/m3

    --

    66

    19 ug/m3

    --

    --

    Aranjuez AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARANJUEZ 14:00 del 21/09/2018 97

    97

    137 ug/m3

    6

    11 ug/m3

    --

    --

    20

    21.13 ug/m3

    --

    Arganda del Rey AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGANDA DEL REY 14:00 del 21/09/2018 64

    64

    117 ug/m3

    8

    16 ug/m3

    --

    --

    39

    41.75 ug/m3

    --

    Collado Villalba AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLLADO VILLALBA 14:00 del 21/09/2018 71

    71

    121 ug/m3

    6

    12 ug/m3

    --

    1 ug/m3

    50

    12 ug/m3

    --

    --

    Colmenar Viejo AQI O3 NO2 SO2 PM2.5 PM10 CO
    COLMENAR VIEJO 14:00 del 21/09/2018 90

    90

    134 ug/m3

    8

    15 ug/m3

    --

    --

    19

    20.88 ug/m3

    3

    400 ug/m3
    Coslada AQI O3 NO2 SO2 PM2.5 PM10 CO
    COSLADA 14:00 del 21/09/2018 44

    44

    95 ug/m3

    20

    39 ug/m3

    --

    --

    30

    32.38 ug/m3

    --

    El Atazar AQI O3 NO2 SO2 PM2.5 PM10 CO
    EL ATAZAR 14:00 del 21/09/2018 64

    64

    117 ug/m3

    1

    2 ug/m3

    --

    1 ug/m3

    43

    10.25 ug/m3

    13

    14 ug/m3

    3

    400 ug/m3
    Fuenlabrada AQI O3 NO2 SO2 PM2.5 PM10 CO
    FUENLABRADA 14:00 del 21/09/2018 51

    51

    109 ug/m3

    17

    33 ug/m3

    --

    --

    32

    34.75 ug/m3

    --

    Getafe AQI O3 NO2 SO2 PM2.5 PM10 CO
    GETAFE 14:00 del 21/09/2018 45

    45

    97 ug/m3

    14

    29 ug/m3

    --

    --

    30

    32.63 ug/m3

    --

    Guadalix de la Sierra AQI O3 NO2 SO2 PM2.5 PM10 CO
    GUADALIX DE LA SIERRA 14:00 del 21/09/2018 84

    84

    130 ug/m3

    4

    7 ug/m3

    --

    --

    18

    19 ug/m3

    --

    Leganés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LEGANÉS 14:00 del 21/09/2018 41

    41

    87 ug/m3

    18

    36 ug/m3

    --

    --

    36

    38.88 ug/m3

    --

    Madrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARTURO SORIA 14:00 del 21/09/2018 46

    46

    99.62 ug/m3

    23

    45 ug/m3

    --

    --

    --

    --

    BARAJAS - PUEBLO 14:00 del 21/09/2018 48

    48

    104.9 ug/m3

    12

    25 ug/m3

    --

    --

    --

    --

    BARRIO DEL PILAR 14:00 del 21/09/2018 50

    50

    107 ug/m3

    22

    43 ug/m3

    --

    --

    --

    --

    CASA DE CAMPO 14:00 del 21/09/2018 61

    61

    116.4 ug/m3

    13

    26 ug/m3

    --

    --

    22

    23.75 ug/m3

    --

    CASTELLANA 14:00 del 21/09/2018 54

    --

    25

    51 ug/m3

    --

    54

    13.38 ug/m3

    25

    26.63 ug/m3

    --

    CUATRO CAMINOS-PABLO IGLESIAS 14:00 del 21/09/2018 55

    --

    28

    56 ug/m3

    --

    55

    14.13 ug/m3

    28

    30.75 ug/m3

    --

    EL PARDO 14:00 del 21/09/2018 77

    77

    126.7 ug/m3

    8

    16 ug/m3

    --

    --

    --

    --

    ENSANCHE DE VALLECAS 14:00 del 21/09/2018 54

    54

    111.4 ug/m3

    11

    23 ug/m3

    --

    --

    --

    --

    ESCUELAS AGUIRRE 14:00 del 21/09/2018 56

    45

    97.24 ug/m3

    35

    69 ug/m3

    3

    5 ug/m3

    56

    14.38 ug/m3

    27

    29.5 ug/m3

    3

    400 ug/m3
    FAROLILLO 14:00 del 21/09/2018 47

    47

    102.4 ug/m3

    14

    28 ug/m3

    --

    --

    19

    20.38 ug/m3

    --

    FERNANDEZ LADREDA-OPORTO 14:00 del 21/09/2018 62

    --

    37

    74 ug/m3

    --

    62

    17.25 ug/m3

    30

    32.88 ug/m3

    5

    500 ug/m3
    JUAN CARLOS I 14:00 del 21/09/2018 49

    39

    84.94 ug/m3

    49

    97 ug/m3

    --

    --

    --

    --

    MAJADAHONDA 14:00 del 21/09/2018 71

    71

    121 ug/m3

    9

    18 ug/m3

    --

    --

    17

    18.5 ug/m3

    --

    MENDEZ ALVARO 14:00 del 21/09/2018 57

    --

    20

    39 ug/m3

    --

    57

    14.88 ug/m3

    36

    38.75 ug/m3

    --

    MORATALAZ 14:00 del 21/09/2018 30

    --

    28

    57 ug/m3

    4

    7 ug/m3

    --

    30

    32.13 ug/m3

    --

    PLAZA CASTILLA-CANAL 14:00 del 21/09/2018 53

    --

    28

    57 ug/m3

    --

    53

    13.25 ug/m3

    27

    28.88 ug/m3

    --

    PLAZA DE ESPAÑA 14:00 del 21/09/2018 25

    --

    25

    50 ug/m3

    4

    8 ug/m3

    --

    --

    3

    300 ug/m3
    PLAZA DEL CARMEN 14:00 del 21/09/2018 38

    36

    78.88 ug/m3

    38

    75 ug/m3

    4

    8 ug/m3

    --

    --

    14

    1400 ug/m3
    PUENTE DE VALLECAS 14:00 del 21/09/2018 22

    --

    21

    42 ug/m3

    --

    --

    22

    23.25 ug/m3

    --

    RAMÓN Y CAJAL 14:00 del 21/09/2018 42

    --

    42

    85 ug/m3

    --

    --

    --

    --

    RETIRO 14:00 del 21/09/2018 47

    47

    102.9 ug/m3

    16

    32 ug/m3

    --

    --

    --

    --

    SANCHINARRO 14:00 del 21/09/2018 20

    --

    18

    35 ug/m3

    --

    --

    20

    21.13 ug/m3

    --

    TRES OLIVOS 14:00 del 21/09/2018 67

    67

    119.5 ug/m3

    15

    30 ug/m3

    --

    --

    19

    20.13 ug/m3

    --

    URBANIZACION EMBAJADA 14:00 del 21/09/2018 25

    --

    18

    36 ug/m3

    --

    --

    25

    26.88 ug/m3

    --

    VILLAVERDE 14:00 del 21/09/2018 40

    40

    86.2 ug/m3

    16

    32 ug/m3

    --

    --

    --

    --

    Mostoles AQI O3 NO2 SO2 PM2.5 PM10 CO
    MÓSTOLES 14:00 del 21/09/2018 50

    50

    107 ug/m3

    17

    33 ug/m3

    1

    2 ug/m3

    --

    23

    24.75 ug/m3

    7

    700 ug/m3
    Orusco de Tajuña AQI O3 NO2 SO2 PM2.5 PM10 CO
    ORUSCO DE TAJUÑA 14:00 del 21/09/2018 77

    77

    125 ug/m3

    2

    3 ug/m3

    --

    1 ug/m3

    --

    20

    22 ug/m3

    1

    100 ug/m3
    Rivas-Vaciamadrid AQI O3 NO2 SO2 PM2.5 PM10 CO
    RIVAS-VACIAMADRID 14:00 del 21/09/2018 64

    64

    118 ug/m3

    10

    20 ug/m3

    --

    --

    25

    26.75 ug/m3

    --

    San Martín de Valdeiglesias AQI O3 NO2 SO2 PM2.5 PM10 CO
    SAN MARTIN DE VALDEIGLESIAS 14:00 del 21/09/2018 84

    84

    130 ug/m3

    3

    5 ug/m3

    --

    --

    17

    18.5 ug/m3

    --

    Torrejón de Ardoz AQI O3 NO2 SO2 PM2.5 PM10 CO
    TORREJON DE ARDOZ 14:00 del 21/09/2018 64

    48

    103 ug/m3

    9

    18 ug/m3

    --

    64

    18.13 ug/m3

    28

    30.63 ug/m3

    --

    Valdemoro AQI O3 NO2 SO2 PM2.5 PM10 CO
    VALDEMORO 14:00 del 21/09/2018 71

    71

    121 ug/m3

    9

    18 ug/m3

    --

    57

    15 ug/m3

    --

    --

    Villa del Prado AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLA DEL PRADO 14:00 del 21/09/2018 50

    50

    108 ug/m3

    4

    7 ug/m3

    1

    2 ug/m3

    46

    11 ug/m3

    16

    17.13 ug/m3

    5

    500 ug/m3
    Villarejo de Salvanés AQI O3 NO2 SO2 PM2.5 PM10 CO
    VILLAREJO DE SALVANES 14:00 del 21/09/2018 74

    74

    124 ug/m3

    6

    11 ug/m3

    --

    44

    10.5 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.