Professional on a broad range of topics related to air quality, with a focus on measurement techniques and its applications. Many activities also have a focus on communication, education and sharing of information:- Facilitating several citizen science groups in the province of South-Holland as a knowledge manager on measurements and how to use them effectively in discussion with governments (the 'OLI'- project).- Facilitating Citizen science activities on topics other than air quality;- Secretary of the national Interprovincial IPO workgroup on air quality;- Secretary of the Kernteam luchtkwaliteit in the Rijnmond area (Core team air quality in the Rijnmond);- Coordinator of the Themaplatform luchtkwaliteit Rijnmond, to facilitate cooperation and spreading knowledge on air quality matters between government organisations of the province of South-Holland;- Project leader to start the implementation within the DCMR of stricter licensing for heavy industry;- Support of several municipalities with the development of air quality action plans and air quality policies;Peter is experienced in various air pollution dispersion models, like Aermod. Examples of recent projects:- Implementation of Ambient Air quality Monitoring Network in Sohar, Oman;- Development of Strategic measurement plan Air quality monitoring;- Mentor for student projects air quality from Avans Hogeschool- Advisor at several Rotterdam pilot projects to improve the air quality;- Member of guidance committee of several government publications on air quality.