ANNEX X

1. Member States shall provide to the public at least the following information: hourly up-to-date data per sampling point of sulphur dioxide, nitrogen dioxide, particulate matter (PM10 and PM2,5), carbon monoxide and ozone; this shall apply to information from all sampling points where up-to-date information is available, and at least to information from the minimum number of sampling points required under Annex III if the measurement method is appropriate for up-to-date data (UTD), notwithstanding that Member States provide to the public as much UTD information as possible and progressively adapt their measurement methods to this effect; when available, up-to-date information resulting from modelling applications shall also be provided; measured concentrations of all pollutants and, where possible, how they compare with the most recent guideline values recommended by the WHO, presented according to the appropriate periods as laid down in Annex I; information on observed exceedance(s) of any limit value, target value, and average exposure reduction obligation, including at least: the location or area of the exceedance; the start time and duration of the exceedance; the measured concentration in comparison to the applicable air quality standards, or average exposure indicator in case of an exceedance of the average exposure reduction obligation; information regarding impacts on health, including at least: the health impacts of air pollution on general population, and, as far as possible, of each pollutant covered by this Directive; the health impacts of air pollution on sensitive population and vulnerable groups, and, as far as possible, of each pollutant covered by this Directive; description of likely symptoms; recommended precautions to be taken, broken down into precautions to be taken by the general population and by sensitive population and vulnerable groups; where to find further information; information regarding impacts on vegetation; information on preventive actions to reduce pollution and exposure to it: indication of main source sectors; recommendations for actions to reduce emissions; information on measuring campaigns or similar activities and their results where performed. 2. Member States shall ensure that timely information about actual or predicted exceedances of alert thresholds, and any information threshold, is provided to the public; details supplied shall include at least the following information: information on observed exceedance(s): location or area of the exceedance; type of threshold exceeded (alert or information); start time and duration of the exceedance; highest 1-hour concentration and in addition highest 8-hour mean concentration in the case of ozone; forecast for the following afternoon/day(s): geographical area of expected exceedances of alert threshold or information threshold; expected changes in pollution (i.e., improvement, stabilisation or deterioration), together with the reasons for those changes; information on the type of population concerned, possible health effects and recommended behaviour: information on population groups at risk; description of likely symptoms; recommended precautions to be taken by the population concerned; where to find further information; information on short-term action plans and preventive actions to reduce pollution or exposure to it: indication of main source sectors; recommendations for action to reduce emissions from anthropogenic sources; recommendations for action to reduce exposure; in the case of predicted exceedances, Member States shall take steps to ensure that such details are supplied to the extent practicable. 3. When an exceedance occurs or when there is a risk of exceedance of any limit value, target value, average exposure reduction obligation, alert thresholds or information thresholds, Member States shall ensure that the information referred to in this Annex is additionally promoted to the public.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-16 · Text as adopted (Official Journal); later amendments are not incorporated in this text.