Fortschreibung und Bewertung von UN ECE Protokollen zur Verminderung des grenzüberschreitenden Transports von Stickoxiden und Kohlenwasserstoffen aus stationären Quellen United Nations Economic Commission for Europe (UN ECE) Convention on Long range Transboundary Air pollution. French German Institute for Environmental Research University of Karlsruhe Germany. Prep. by O. Rentz .̤ ; Bd. 1: Technical background document for the actualisation and assessment of UN ECE protocols related to the abatement of the transboundary transport of nitrogen oxides from stationary sources : report of the Task Force on the Assessment of Abatement Options Techniques for Nitrogen Oxides from Stationary Sources Nitrogen oxide emission reduction emission factor stationary sources primary measures secondary measures implementation status investments operating costs