Check the air quality index in Lleida 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 Lleida

    Bellver de Cerdanya AQI O3 NO2 SO2 PM2.5 PM10 CO
    Bellver de Cerdanya (CEIP Mare de Déu de Talló) 21:00 del 04/12/2020 26

    26

    55 ug/m3

    8

    17 ug/m3

    --

    --

    --

    --

    Els Torms AQI O3 NO2 SO2 PM2.5 PM10 CO
    ELS TORMS 21:00 del 04/12/2020 29

    29

    61.02 ug/m3

    2

    2.85 ug/m3

    --

    0.23 ug/m3

    --

    --

    --

    Juneda AQI O3 NO2 SO2 PM2.5 PM10 CO
    Juneda (Pla del Molí) 21:00 del 04/12/2020 8

    8

    17 ug/m3

    4

    8 ug/m3

    --

    --

    --

    --

    Lleida AQI O3 NO2 SO2 PM2.5 PM10 CO
    Lleida (Irurita - Pius XII) 20:00 del 04/12/2020 28

    3

    6 ug/m3

    28

    57 ug/m3

    --

    1 ug/m3

    --

    --

    3

    300 ug/m3
    Montsec (OAM) 21:00 del 04/12/2020 33

    33

    72 ug/m3

    1

    1 ug/m3

    --

    1 ug/m3

    --

    --

    1

    100 ug/m3
    Ponts AQI O3 NO2 SO2 PM2.5 PM10 CO
    Ponts (Ponent) 20:00 del 04/12/2020 14

    14

    30 ug/m3

    --

    --

    --

    --

    --

    Sort AQI O3 NO2 SO2 PM2.5 PM10 CO
    Sort (escola de caiac) 21:00 del 04/12/2020 19

    19

    39 ug/m3

    --

    --

    --

    --

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    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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