# The Air Quality Standards (Wales) Regulations 2007, Paragraph 4


Forecast for the following afternoon, day or days—
(a) the geographical area of expected exceedances of an information threshold or alert threshold; and
(b) the expected change in pollution, that is, improvement, stabilisation or deterioration.

---
Source: https://www.legislation.gov.uk/wsi/2007/717/schedule/11/paragraph/4 (the official version)
Page: https://openlegislation.uk/air-quality-standards-wales-regulations-2007/schedule-11/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.