Like limit values, the critical levels create an obligation of result: Article 14. Unlike limit values, however, they do not seem create individual rights or "locus standi" for individual members of the public defending air quality as such (à contrario derived from Janacek (C-237/07) and Client-Earth (C-404/13) rulings of the Court of Justice). But that is likely different where an action would be based on suffering of economic damage to his crops by a farmer.