Version 5.1 by Emily West on 2022/01/11 17:56

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Emily West 3.1 1 = 2.1.1 CAQI - Common Air Quality Index =
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5 |=(% style="width: 79px;" %)Topic|=(% style="width: 139px;" %)Urban challenges|=(% style="width: 666px;" %)Sub-challenges
Emily West 3.1 6 |(% style="width:79px" %)Environment|(% style="width:139px" %)2 - Air Quality|(% style="width:666px" %)2.1 - Air Quality at District/ City Scale
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10 ====== **Description** ======
Emily West 5.1 11 )))|(% style="width:730px" %)In 2005 the Common Air Quality Index (CAQI) was proposed to facilitate the comparison of air quality in European cities in real time. There are many air quality indices (AQI-s) in use in the world. All are different in concept and presentation and comparing air quality in cities was virtually impossible for the lay public1 . The CAQI and the accompanying website www.airqualitynow.eu or app were introduced as a ‘lingua franca’ solution to overcome this problem17 .
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13 ===== **Scale as linked to D2.2 framework** =====
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15 * City
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18 ====== **Data source [ link to data framework]** ======
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Emily West 4.1 20 * Measurement/ monitoring
Emily West 1.1 21 )))
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23 ====== **Needs** ======
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Emily West 3.1 25 * Hourly value NO2, PM10 and O3 (additionally CO, SO2, PM2,5)
26 * Daily average value NO2, PM10 and O3 (additionally CO, SO2, PM2,5)
27 * Yearly average value (additionally CO, SO2, PM2,5)
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30 ====== **Expected Outputs** ======
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Emily West 3.1 32 * Continuously monitored
33 * numerical value (very low, low, medium, high and very high)
34 * graphic map
35 * quantitative
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38 ====== **Calculation methods** ======
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Emily West 3.1 40 * CAQI methodology.
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43 ====== **Links and references** ======
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45 * www.airqualitynow.eu
46 * Elshout S van den, Léger K, Nussio F. Comparing urban air quality in Europe in real time, a review of existing air quality indices and the proposal of a common alternative. Environ Int 2008; 34(5):720–6.
47 * Elshout S van den. CITEAIR II project. INTERREG IVC Programme. www.airqualitynow.eu/download/CITEAIR Comparing_Urban_Air_Quality_across_Borders.pdf, 2012. [Accessed oct-2017].
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