Emissions of nitrogen oxides (NOx), ammonia, sulphur dioxide and non-methane volatile organic compounds (NMVOC) in the Netherlands slightly decreased in 2012. As a result, emission levels stayed below the caps as set by the European Union in 2010, and therefore, the Netherlands complied with all four so-called national emission ceilings (NEC).
This has become apparent from the Dutch emission data on transboundary air polluting substances, presented in the 2014 Informative Inventory Report (IIR) by the National Institute for Public Health and the Environment (RIVM). For this report, PBL Netherlands Environmental Assessment Agency contributed to the calculation and reporting on air polluting emissions in the Netherlands.
The report describes Dutch emission trends and levels for sulphur dioxide(SO2), nitrogen oxides (NOx), non-methane volatile organic compounds (NMVOCs), ammonia (NH3), carbon monoxide (CO), particulate matter (PM), and heavy metals and persistent organic pollutants (POPs), over the 1990–2012 period. For all these substances, emission levels have decreased. The downward trend may be attributed in particular to cleaner fuels, cleaner car engines and to emission reductions in industrial sectors.