Velders GJM, Aben JMM, Geilenkirchen GP, den Hollander HA, Nguyen L, van der Swaluw E, de Vries WJ, Wichink Kruit RJ
RIVM Report 2018-0104
New maps of concentrations and depositions for NSL and PAS: 2017 The Dutch National Institute for Public Health and the Environment (RIVM) has published the latest annual charts showing airborne concentrations of substances including nitrogen dioxide and particulate matter in the Netherlands in 2017. The charts also show the degree of nitrogen deposition on soil. Future calculations were made for the same substances for the period from 2018 up to and including 2030. The charts are made in order to monitor NSL (a national air quality cooperation programme). The emissions and scenarios are also used as basis for the monitoring of the PAS (a programmed approach to nitrogen). These programmes include checks on the effects of spatial planning on airborne concentrations of pollutants.
Nitrogen dioxide and particulate matter concentrations approximately the same as estimated last year The measured concentrations of nitrogen dioxide (NO2) were slightly lower in 2017 than in 2016, while the estimates for 2020-2030 are about the same as last year's estimates. The particulate matter concentrations (PM10 and PM2.5) show a similar picture: the 2017 values are about the same as those of 2016, while the estimates for 2020-2030 are somewhat lower than last year's estimates. The changes in concentrations are mainly the result of calibrations; the emission projections have not changed significantly.
Estimated reduction on nitrogen deposition on soil until 2030 largely unchanged The average quantity of nitrogen deposited on soil is expected to decrease in the coming years. This is due to declining emissions by traffic, shipping and agriculture. The average decrease over the Netherlands until 2030 is estimated to be about the same as estimated last year.