Lag Ba'omer holidayLag Ba'omer holidayaerosol measurements in aerosol measurements in

Weizmann Institute with the Weizmann Institute with the Aerodyne Aerosol Mass Aerodyne Aerosol Mass

SpectrometerSpectrometer

Hanan Einav LevyHanan Einav Levy

High resolution time of flight aerosol mass spectrometer

HR-TOF-AMS

High resolution time of flight aerosol mass spectrometer

HR-TOF-AMS

Animation of the Aerodyne Q-AMS. Credit: Matt Thyson (Lexington, Massachusetts)

High resolution time of flight aerosol mass spectrometer

HR-TOF-AMS

Real time aerosol mass spectrometry

Inlet design

Zhang et al. 2004

Real time aerosol mass spectrometry

Inlet design

Zhang et al. 2004

Sizing Aerosols

DeCarlo et al. 2004

Real time aerosol mass spectrometry

quantification = separation of evaporation and ionization

Canagaratna et al. 2007

Converting mass spectrum into UMR

raw spectrum --> sticks

Converting mass spectrum into UMR

Effectiveness of AMS detection approach

Lag B'aomer campaign

EPA: PM10

WIS :AMS, SMPS, Grimm, Wellas, APS

Lag Ba'omer measurements

PM10 measurements from the Israeli EPA

PM10 measurements from the Israeli EPA

Lag Ba'omer measurements

Size distributions time series

AMS

SMPS

average ensemble MSOOA – CO

2

HOA - C4H

9

NR aerosol composition

Size resolved MS

Israel, Rehovot

what else can you measure? floor paint evaporation (when is it safe to

come back to work)

Acknowledgements

Prof. Yinon Rudich, Prof. Jacob Karni, Dor Gefen, Enrico Segre, Michel Flores, Miri Trinic, Ali abu rizaq

Aerosols

aerosol particles collected on filters , scanned with a SEM source: University of Sao Paulo, Brazil