Check the air quality index in Asturias 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 Asturias

    Salinas AQI O3 NO2 SO2 PM2.5 PM10 CO
    SALINAS 20:00 del 25/01/2021 28

    25

    53 ug/m3

    9

    18 ug/m3

    --

    28

    6.63 ug/m3

    16

    17.25 ug/m3

    1

    110 ug/m3
    Avilés AQI O3 NO2 SO2 PM2.5 PM10 CO
    LLANOPONTE 21:00 del 25/01/2021 34

    12

    26 ug/m3

    12

    24 ug/m3

    1

    3 ug/m3

    34

    8.25 ug/m3

    14

    15.38 ug/m3

    --

    LLARANES 22:00 del 25/01/2021 26

    26

    55 ug/m3

    8

    16 ug/m3

    1

    3 ug/m3

    --

    13

    13.75 ug/m3

    --

    PLAZA DE LA GUITARRA 21:00 del 25/01/2021 19

    19

    40 ug/m3

    14

    28 ug/m3

    3

    5 ug/m3

    --

    15

    16.25 ug/m3

    7

    720 ug/m3
    Cangas del Narcea AQI O3 NO2 SO2 PM2.5 PM10 CO
    CANGAS DE NARCEA 21:00 del 25/01/2021 25

    3

    6 ug/m3

    12

    24 ug/m3

    3

    4 ug/m3

    25

    5.88 ug/m3

    10

    10.75 ug/m3

    7

    690 ug/m3
    Gijón AQI O3 NO2 SO2 PM2.5 PM10 CO
    ARGENTINA 22:00 del 25/01/2021 20

    20

    43 ug/m3

    11

    23 ug/m3

    1

    2 ug/m3

    15

    3.63 ug/m3

    18

    19.63 ug/m3

    2

    250 ug/m3
    AVENIDA DE CASTILLA 22:00 del 25/01/2021 30

    30

    64 ug/m3

    3

    5.7 ug/m3

    --

    1.1 ug/m3

    --

    7

    7.88 ug/m3

    2

    280 ug/m3
    CONSTITUCIÓN 21:00 del 25/01/2021 31

    25

    53 ug/m3

    11

    23 ug/m3

    --

    1 ug/m3

    31

    7.5 ug/m3

    14

    15.13 ug/m3

    --

    HERMANOS FELGUEROSO 01:00 del 14/01/2021 --

    --

    --

    --

    --

    --

    --

    MONTEVIL 22:00 del 25/01/2021 23

    23

    49 ug/m3

    8

    16 ug/m3

    --

    1 ug/m3

    19

    4.5 ug/m3

    10

    10.75 ug/m3

    --

    SANTA BÁRBARA 20:00 del 25/01/2021 17

    --

    8

    15 ug/m3

    --

    17

    4 ug/m3

    8

    8.63 ug/m3

    3

    360 ug/m3
    Langreo AQI O3 NO2 SO2 PM2.5 PM10 CO
    LA FELGUERA 22:00 del 25/01/2021 16

    12

    25 ug/m3

    12

    24 ug/m3

    3

    5.4 ug/m3

    16

    3.88 ug/m3

    14

    15.5 ug/m3

    9

    930 ug/m3
    MERIÑÁN 22:00 del 25/01/2021 19

    14

    30 ug/m3

    6

    12 ug/m3

    3

    5.1 ug/m3

    --

    19

    21 ug/m3

    --

    SAMA I 21:00 del 25/01/2021 42

    14

    30 ug/m3

    11

    23 ug/m3

    1

    2 ug/m3

    42

    10 ug/m3

    10

    10.88 ug/m3

    5

    420 ug/m3
    Llanes AQI O3 NO2 SO2 PM2.5 PM10 CO
    NIEMBRO 22:00 del 25/01/2021 39

    39

    83.39 ug/m3

    1

    2.13 ug/m3

    --

    0.15 ug/m3

    --

    --

    --

    Lugones AQI O3 NO2 SO2 PM2.5 PM10 CO
    LUGONES INSTITUTO 21:00 del 25/01/2021 30

    22

    48 ug/m3

    12

    24 ug/m3

    --

    1 ug/m3

    30

    7.25 ug/m3

    8

    8.63 ug/m3

    2

    280 ug/m3
    Mieres AQI O3 NO2 SO2 PM2.5 PM10 CO
    JARDINES DE JUAN XXIII 22:00 del 25/01/2021 21

    5

    10 ug/m3

    12

    25 ug/m3

    1

    2 ug/m3

    --

    21

    22.63 ug/m3

    --

    Oviedo AQI O3 NO2 SO2 PM2.5 PM10 CO
    PLAZA DE TOROS 22:00 del 25/01/2021 20

    20

    44 ug/m3

    6

    12 ug/m3

    10

    19 ug/m3

    --

    16

    17.38 ug/m3

    5

    510 ug/m3
    PURIFICACIÓN TOMÁS 22:00 del 25/01/2021 30

    30

    64 ug/m3

    7

    14 ug/m3

    1

    3.8 ug/m3

    14

    3.25 ug/m3

    8

    8.38 ug/m3

    8

    770 ug/m3
    TRUBIA PISCINAS 20:00 del 25/01/2021 22

    22

    48 ug/m3

    6

    11 ug/m3

    1

    3.6 ug/m3

    --

    21

    23.13 ug/m3

    5

    460 ug/m3
    PALACIO DE DEPORTES 21:00 del 25/01/2021 33

    15

    31 ug/m3

    16

    32 ug/m3

    4

    7 ug/m3

    33

    8 ug/m3

    14

    14.75 ug/m3

    6

    550 ug/m3
    San Martín del Rey Aurelio AQI O3 NO2 SO2 PM2.5 PM10 CO
    BLIMEA 21:00 del 25/01/2021 13

    5

    9 ug/m3

    9

    18 ug/m3

    1

    3 ug/m3

    --

    13

    14.25 ug/m3

    5

    420 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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