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To note also that cumulative impacts could occur where impacted areas interact. An example of this would be where a proposed project is likely to reduce water levels in a Natura 2000 site. Although that resource reduction in itself may not be significant, if existing fertiliser and pesticide residues reach the site from a nearby intensive farming area, the lower water levels may mean higher concentrations of pollutants when run-off occurs, to an extent that the combined effect becomes significant, i.e. concentrations of pollutants beyond the levels which are compatible with the ecological requirements of the habitat or species protected in the site.
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.