# The Air Quality (Ozone) (Wales) Regulations 2003, Paragraph 1


Information on any observed exceedance:
(a) the location or area of the exceedance;
(b) the type of threshold exceeded (information threshold or alert threshold);
(c) the time at which the exceedance began and its duration; and
(d) the highest 1-hour and 8-hour mean concentration.

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Source: https://www.legislation.gov.uk/wsi/2003/1848/schedule/7/paragraph/1 (the official version)
Page: https://openlegislation.uk/air-quality-ozone-wales-regulations-2003/schedule-7/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.