Examples of ozone damage in trees

Birch, beech, ash

Oonze damaged silver birch leaf  Ozone damage on beech leaves  Ozone damage on ash leaves

a) Birch                      b) Beech                    c) Ash

Ozone damage on narrow leaved ash   Ozone damage on flowering ash

d) Narrow-leaved ash    e) Flowering ash

Oak, poplar, maple

Ozone damaged sessile oak leaf  Ozone damaged poplar leaf  Ozone damaged field maple leaf

f) Sessile oak             g) Poplar                    h) Field maple

Ozone damage on Italian maple

i) Italian maple

Fruit trees

Ozone damage on white mulberry leaf

j) White mulberry

Conifers

Ozone injury on Aleppo pine Ozone injury on European larch Ozone injury on Norway spruce

k) Aleppo pine           l) European larch        m) Norway spruce

Shrubs

Ozone damage on hawthorn leaves Ozone damage on honeysuckle leaves Ozone damage on wayfaring tree leaf

n) Hawthorn               o) Honeysuckle         p) Wayfaring tree 

Photos courtesy of: Innes et al. 2001, (a) Birch (Betula pendula); (b) Beech (Fagus sylvatica); (c) Ash (Fraxinus excelsior) (www.ozone.wsl.ch); V. Calatayud, (d) Narrow-leaved ash (Fraxinus angustifolia); (e) Flowering ash (Fraxinus ornus) (www.ozoneinjury.org); (f) M. Broadmeadow, Sessile oak (Quercus petraea); (g) V. Calatayud Poplar (Populus nigra); (h) V. Calatayud and M.J. Sanz, Field maple (Acer campestre); V. Calatayud, (i) Italian maple (Acer opalus); (j) White mulberry (Morus alba) (www.ozoneinjury.org); (k) D. Velissariou, Aleppo pine (Pinus halepensis); (l) L. Dalstein (G.I.E.F.S), European larch (Larix decidua) (www.ozone-pollution.com); (m) N. Vas (G.I.E.F.S), Norway spruce (Picea abies) (www.ozone-pollution.com): (n) Innes et al. 2001, Hawthorn (Crataegus monogyna) (www.ozone.wsl.ch); (o) M. J. Sanz and V. Calatayud, Honeysuckle (Lonicera implexa) (www.ozoneinjury.org); (p) Innes et al. 2001, Wayfaring tree (Viburnum lantana) (www.ozone.wsl.ch).