The Group puts forward these recommendations recognising that the project on economic evaluation has still to produce its final report, and that the Group’s recommendation will be assessed in the light of the economic evaluation by the Steering Committee. Also, the question of geogenic dust, which plays an important role in some member states, has not been taken into full account and needs further consideration by the Commission. Whatever decisions the Commission takes finally on the above values, the Group recommends that they be reviewed within 5 years after entry into force. Similarly, without an effects threshold, no alert values can be proposed on.
