Atmospheric deposition and ozone levels in Swiss forests: are critical values exceeded?

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Waldner, P., Schaub, M., Graf Pannatier, E., Schmitt, M., Thimonier, A., & Walthert, L. (2007). Atmospheric deposition and ozone levels in Swiss forests: are critical values exceeded? Environmental Monitoring and Assessment, 128(13), 5-17. https://doi.org/10.1007/s10661-006-9411-6