@article {2040,
	title = {Mapping Critical Levels for Vegetation: Chapter 3},
	year = {2017},
	month = {10/2017},
	abstract = {<p>This fully revised version of Chapter 3 of the ICP Vegetaition report includes updates to the critical levels for ozone agreed at the 30th ICP Vegetation Task Force Meeting, 14-17 February, 2017, Poznan, Poland. The critical levels for SO2, NOX and NH3 and associated text have not been changed since the previous version. This version was published in April 2017 (minor edits October 2017).</p>},
	url = {https://icpvegetation.ceh.ac.uk/publications/documents/FinalnewChapter3v4Oct2017_000.pdf},
	author = {Defra}
}
