The number-based approach to emissions of particles should draw on the results of the Particulate measurement programme (PMP) of the United Nations Economic Commission for Europe (UN/ECE) and be consistent with the existing ambitious objectives for the environment.
Tahkete osakeste heitkoguste arvuline arvestus peaks tuginema ÜRO Euroopa Majanduskomisjoni (UN/ECE) tahkete osakeste mõõtmise programmi tulemustele ja olema kooskõlas praeguste ambitsioonikate keskkonnaeesmärkidega.