# The Air Quality Standards (Wales) Regulations 2010, Paragraph

Extent: E+W

Objective
Averaging period
Long-term objective
Date by which long-term objective should be met
Protection of human health
Maximum daily eight hour mean within a calendar year
120 μg/m3
Not defined
Protection of vegetation
May to July
AOT 40 (calculated from 1h values) 6000 μg/m3 · h
Not defined

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Source: https://www.legislation.gov.uk/wsi/2010/1433/schedule/3/paragraph/wrapper3n1 (the official version)
Page: https://openlegislation.uk/air-quality-standards-wales-regulations-2010/schedule-3/paragraph-wrapper3n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.