Rural concentration of the ozone indicator AOT40 for vegetation, 2017

Figure Created 22 Jul 2019 Published 05 Sep 2019 Last modified 05 Sep 2019
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Accumulated ozone exposure values for crops — over a threshold of 40 parts per billion (AOT40c) — for 2017, as calculated for the fusion maps and as measured at rural background stations.

European data

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AOT40 for crops are vegetation exposure related indicators and are based on rural background station observation only. Methodology is described in the ETC/ACM Technical Paper 2014/4.

information.png Units:

(μg/m3).hour

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EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
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European Environment Agency (EEA)
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Additional information

  • AOT40 (Accumulated dose of ozone Over a Threshold of 40 ppb)

Means the sum of the differences between hourly concentrations greater than 80 µg/m3 (= 40 parts per billion) and 80 µg/m3

Related content

Based on data

Air Quality e-Reporting (AQ e-Reporting) European air quality information reported by EEA member countries, including all EU Member States, as well as EEA cooperating and other reporting countries. The EEA’s air quality database consists of a multi-annual time series of air quality measurement data and calculated statistics for a number of air pollutants. It also contains meta-information on the monitoring networks involved, their stations and measurements, as well as air quality zones, assessment regimes and compliance attainments reported by the EU Member States and European Economic Area countries.
Interpolated air quality data Interpolated maps showing air quality in Europe. The dataset has been reorganised in order to improve data harmonization among years and to facilitate storage and processing of the interpolated maps for the EEA data services.
European air quality maps for 2015, ETC/ACM The paper provides the annual update of the European air quality concentration maps and population exposure estimates for human health related indicators of pollutants PM10 (annual average, 36th highest daily average as 90.4 percentile), PM2.5 (annual average), ozone (26th highest daily max. 8-hr running average as 93.2 percentile, SOMO35) and NO2 (annual average), and vegetation related indicators (AOT40 for vegetation and for forests) for the year 2015. The report contains also an NOx annual average concentration map for 2015.  The paper summarises trends in exposure estimates for the period 2005-2015 on PM10 and ozone, and for the period 2007-2015 on PM2.5. The analysis is based on interpolation of annual statistics of the 2015 observational data reported by EEA Member countries and stored in the Air Quality e-reporting database.  The paper presents the mapping results including an uncertainty analysis of the interpolated maps, as well as the probabilities of exceeding relevant thresholds.  These maps, with their spatial exceedance and exposure estimates, are intended to be used for the assessment of European air quality by the EEA and its ETC/ACM, and for (interactive visual) public information purposes through the EEA website.

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For references, please go to https://www.eea.europa.eu/data-and-maps/figures/rural-concentration-map-of-the-ozone-indicator-aot40-for-crops-year-13 or scan the QR code.

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