TOPAS
Insights into the origins of air pollution
The TNO Operational Pollution Apportionment Service (TOPAS) provides insight into the origins of atmospheric pollutants relevant for air quality policy and health. It shows the contributions from anthropogenic source sectors, natural sources and source regions to air pollution in cities and/or at measurement locations. Information about such contributions supports the design of effective measures to reduce pollution levels and related negative health impacts.
TOPAS-NL
Daily sector and country contributions to PM10, PM2.5, NO2 and SO2 for the Netherlands
TOPAS-CH4
Daily sector and country contributions to greenhouse gas methane (CH4) for Europe
Air Quality Forecast NL
Daily average PM10, PM2.5, NO2 and daily maximum ozone for the Netherlands. Note this service component does not contain any source attribution information.
Information
The TOPAS system is build upon the regional air quality model LOTOS-EUROS and CAMS data products to track the contributions of predefined source categories to the levels of air pollutants in the atmosphere.
More information can be found in the documentation.
You can contact us through email - topas@tno.nl.
The development of this tool has been enabled by internal TNO funding, the EU FP7 project ENERGEO (grant nr 226364) and Horizon Europe project Avengers (grant nr 101081322), the UBA project FKZ 3721 51 201 0 and the CAMS National Collaboration Programme under the contract CAMS2_72_NL.