Wall board: Types of environmental pollutants

MACHINE TRANSLATION (not authorised yet)

Wall chart 67 x 97 cm showing types of environmental pollution (air: e.g. acid rain, ozone hole, smog; water: e.g. heavy metals, fertilisers, petroleum-based substances; soil and land: acidification, salinisation, pesticides), framed with aluminium strips and hanging.

- printed on 250 g chalkboard paper
- foiled on one side
- aluminium slats with hook