A Blog of the ZHAW Zurich University of Applied Sciences
We introduced you to the concept of lung deposited surface area (LDSA) and our network of LDSA sensors in a previous post. The idea of monitoring very fine particulate matter (PM) comes from the knowledge that up to 90% of number concentration of ambient PM comprises of particles less than 500 nm of which ultrafine […]
A long-awaited return The previous installment of the TAC conferences, TAC-4, was the best conference I attended during my PhD back in 2015. A perfect combination of topics and social activities in a small Bavarian town away from touristy temptations. Naturally, TAC-5 had been on my radar, and it was initially supposed to follow the […]
Particle emissions of small turbine engines are unknown and unregulated Jet engines for commercial airliners in production now and in the future are certified for particle emissions from a virtual landing and take-off cycle. However, one potentially large group of engines is left out. Small jet engines (<26.7 kN rated thrust), found on business jets, […]
For a few months now, our group and our students have been doing field measurements using Partector 2, a portable particulate matter (PM) sensor from naneos particle solutions gmbh. This very nice portable device utilizing induced currents (Fierz et al, 2014) measures the lung-deposited surface area (LDSA, see e.g. the paper of Sager & Castranova, […]
Of course, COVID-19 also affected us, leading to working from home, interruption of routine aircraft turbine emission measurements at SR Technics, or to additional workload linked to remote teaching activities. On a positive note, COVID-19 offered the unique situation of drastic reductions in road as well as air traffic. At Zurich airport, there were days […]