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ChAMBRe

ChAMBRe Information

General information
Access mode

Physical access: “hands-on” access to ENV chamber

Remote access: instrument calibration
Infrastructure name and acronym Chamber for Aerosol Modelling and Bio-aerosol Research (ChAMBRe)
Photos
Location Genoa, Italy
Website https://labfisa.ge.infn.it/
Legal name of organisation operating the infrastructure Istituto Nazionale di Fisica Nucleare (INFN) – Sezione di Genova
Description of the infrastructure
Brief general description of the infrastructure to which access is offered

A stainless steel atmospheric simulation chamber (volume approximately 3 m3) has been recently installed at the National Institute of Nuclear Physics in Genoa (INFN-Genova, www.ge.infn.it) in collaboration with the Environmental Physics Laboratory at the Physics Department of Genoa University (www.labfisa.ge.infn.it).
ChAMBRe  presents unique characteristics in the Italian scientific framework and is equipped  with a set of instruments/tools for atmospheric measurements, in particular:
- Relative humidity, temperature and pressure gauges
- Gas and aerosol inlets (Blaustein Atomizer – BLAM by CH-Technologies) 
- Vacuum system
- Sampling ports for filters and  two-stage continuous Streaker samplers
- Light source reproducing the solar spectrum
- Gas analyzers (O3, NOx and SOx)
- Real-time aerosol monitoring (OPC-Grimm, Aethalometer)
- Aerosol samplers (Battelle Cascade impactor,  13-stage Nano-Moudi rotating cascade impactor for size segregated analysis)
- Bio-aerosol-specific samplers (Andersen-type cascade impactor  )

Services currently offered by the infrastructure and its research environment

Test of aerosol samplers
Test and development of real-time bio-aerosols monitors
Test to study the correlation between bacteria viability and atmospheric pollutants
Measurement of bacteria viability versus suspension time
Preparation of artificial aerosol samples deposited on different media
Full compositional analysis of aerosol samples

Modalities of access and support offered under EUROCHAMP-2020
Typical duration of work

A typical experiment comprises a number of maintenance and setup activities such as cleaning, filling and emptying the chamber; prepare and cultivate bacteria strains to inject, sterilize all the equipment.  Normally, when operating with bacteria, one experiment per day can be performed. For experimental efficiency, access to the chamber is best provided in "campaign mode" over 5 days or more.

Community/user type served Academic sector (expert and early stage researchers)
Industrial users / SMEs for sensors and other equipment testing
Scientific and technical support offered
- Technicians and Technologists
Mechanical and electronic workshop (included 3D printing of plastic and metallic objects), computers farm for scientific calculation
Research scientists
Access to expertise of senior scientists:

• Prof. Paolo Prati: atmospheric aerosol characterization, instruments set-up and validation, source apportionment.
• Prof. Camilla Costa: chemistry of atmospheric aerosol, FESEM microscopy, nanoparticles
• Dr. Dario Massabò: optical properties of atmospheric aerosols, multi-wavelength absorbance analyses
• Dr. Elena Gatta: bacteria and cellular biology, microbiology.

Logistic and administrative support offered • Instrument shipping
• Booking of accommodation
Person in charge of the infrastructure

Prof. Paolo Prati,  group leader, prati@ge.infn.it

 Extended technical information
Physical  ChAMBRe is a cylindrical stainless steel simulation chamber.

Dimensions: 
Diameter: 0.997 m 
Height: 2.940 m
Volume: 2140 litres
S/V ratio: 4.4 m-1
Projected surface area: 0.785 m2

Temperature range: 18 - 25 °C
Pressure range: 10-5 - 1030 mbar
Relative Humidity range: 0 to 99 %
Mechanical description (image)
Irradiation spectra  N/A
Size dependent aerosol loss/lifetime (image)
Auxiliary mechanism  Reactions                                      constants                                   Note

O3 → O3_Wall                                                3.04± 0.40 x 10-5 s-1                          depending on the cleaning procedure

Description paper  Dario Massabò, Silvia Giulia Danelli, Paolo Brotto, Antonio Comite, Camilla Costa, Andrea Di Cesare, Jean François Doussin, Federico Ferraro, Paola Formenti, Elena Gatta, Laura Negretti, Maddalena Oliva, Franco Parodi, Luigi Vezzulli, and Paolo Prati. ChAMBRe: a new atmospheric simulation Chamber for Aerosol Modelling and Bio-aerosol Research. Atmos. Meas. Tech., 11, 5885–5900, 2018, DOI: 10.5194/amt-11-5885-2018.