AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
Abstract View
Comprehensive Mobile Measurements of Aerosols from Residential Heating in Small Settlements for Temporal/Spatial Variability and Hot-Spots Identification: Cross-Border Study
JAN BENDL, Jan Hovorka, Jürgen Schnelle-Kreis, Gert Jakobi, Mohamed Khedr, Xiansheng Liu, Charles University
Abstract Number: 762 Working Group: Urban Aerosols
Abstract Residential heating represents in Middle/Eastern Europe serious health risk especially in small settlements during winter-time. The air pollution models mostly lack data from microscale, so PM is underestimated. Moreover, boilers and stoves are hardly regulated by states and citizens are not aware.
We developed an appropriate methodology for comprehensive mobile aerosol temporal/spatial variability observation in small settlements where the same 1-hour long route across the village with strollers (inlets in the breathing zone) is repeated 8 times a day (5am–10pm).
PM1, 2.5, 10, Particle size distribution, PNC (1 second integration time), BC (10 sec) concentration are plotted into maps. The aerosol is sampled during the whole route in 2 fractions for PAHs analysis (IDTD-GC-TOF-MS). Low-cost PM devices are tested for future citizen-science applications.
We conducted simultaneous measurements (11/22-25/2018) by two strollers in two similar-sized villages, 2.5 km far from each other in the Czech-German border area – Zelezna Ruda (Czechia) and Bayerisch Eisenstein (Germany). Surrounding national park ensured isolation from other sources and three stationary PM2.5 instruments with meteo-station recorded dynamics of background.
Overall higher concentrations during the same atmospheric conditions were measured on the Czech side due to more coal and wood combustion boilers. The highest median of PM2.5 was during the walk on 24th November (6-7 pm) 444 μg.m-3 with peaks up to 11 mg.m-3 while in Germany was median 61 μg.m-3. High temporal and spatial variability was observed, PM2.5 ranged in two orders of magnitude during one walk (plumes) which suggests mobile measurements are an appropriate method for real personal exposure and hot-spots identification in small settlements.
The study is supported by the DSPF PA06 Project “CONSPIRO – Breathing Together“ coordinated by EC-JRC (TFAQ).