1. Particle Chemistry Department Aerosol Measurements during AQABA
Frank Drewnick
contact: / tel. 5200

2. Aerosol Chemistry PM1 non-refractory components: Aerodyne HR-ToF-AMS
10-8 hPa
Data Acq. Com-puter
filament
aerosol vaporizer
particle TOF
measurement
orthogonal
extractor
ion reflector
MCP detector
chopper
aerosol inlet
(aerodynamic lens)
1000 hPa
10-7 hPa
to pumps
Inorganics (sulfate, nitrate, ammonium)
Organics (can be separated into aerosol types: fresh/aged oxygenated OA, BBOA, HOA)
No refractory material measured (e.g. mineral dust)
For sufficiently high conc.: size distributions
Time resolution ~0.5 min

3. Aerosol Chemistry PM1 total particle-bound PAH: PAS2000
Semi-quantitative measurement of total PAH located near the surface of the particles
Time resolution: 10 s
PM1 black carbon: Aethalometer AE33
Black carbon 7 wavelengths
Time resolution: 1 s

4. Aerosol Physical Variables
Particle size distribution: FMPS & OPC
Fast Mobility Particle Spectrometer
1-s particle size distributions
Dmob = 5.6 – 560 nm
No radioactive source needed
Particle number concentration: CPC
Condensation Particle Counter
1-s particle number conc.
Dp = 5 nm – 3 µm
Working fluid: H2O
Optical Particle Counter
12-s particle size distributions
Dopt = 250 nm – 32 µm

5. Logistics – Inlet System
Requirements:
Inlet perpendicular, no horizontal inlet lines over extended distances
Aerosol must be dried before entering the container
Aerosol dryer must be developed; part of the inlet system, located on top of the container.
Suggestion: automatically regenerating silica gel aerosol dryer

6. Logistics – Space/Power/etc. Needs
AMS x 0.8 m² (+ space around)
Aerosol Rack x 0.8 m² (+ space around)
Table/bench for calibration equipment 1 x 1 m²
 Total: 1/3 container
Power: Instruments: ~1.5 kW
Aerosol dryer: ~2 – 3 kW
Setup: ca. 2 days
Staff: 3 persons (leg 1)
2 persons (leg 2)

7. Questions
Aerosol Inlet: Will a common aerosol inlet including aerosol dryer be provided?
Container location: We need a perpendicular inlet. Is container space in a container as far as possible at the front end of the ship available?
Container conditions: What is the expected temperature inside the container? How much space is available for our instruments?
Setup: How long will be the setup time in the harbor?
External information: Is AIS information on other ships available in real time?