ur Aeronomy Lab, constructed in the Winter 2006 - Spring of 2007, sits atop the Administration Building on the CCNY campus to gather air quality data. The 140 sq ft structure is fully insulated to provide a temperature controlled environment for sensitive instrumentation and provides workspace for additional specific-goal research projects.
PM 2.5 (particulates) and O3 (Ozone concentration) Data can be retrieved here. The New York State Department of Environmental Conservation operates equipment in our lab to gather and report this concentration data representing particulates 2.5 micrometers (2.5μ) in size or smaller aerodynamic diameter. Since airborne particles have irregular shapes, their aerodynamic behaviour is expressed as the diameter of an idealised spherical particle known as aerodynamic diameter.
Reports, graphs and downloads in various formats can be produced along with comparisons of data from nearby Metropolitan New York sites. Select the 1024x768 screen size to view properly in your browser when extracting comparison graphs.
CCNY operates additional instrumentation for research purposes, continuously monitoring the following air parameters:
|PM1 size distribution between 0.01- and 1-mm||10-minute||TSI 3936L85 Scanning Mobility Particle Sizer (SMPS)|
|PM2.5 mass||5-minute||Rupprecht and Patashnick 1400a Tapered Element Oscillating Microbalance (TEOM) with a nafion-based Sample Equilibration System (SES) that allows for 30-degC sampling)|
|PM2.5 organic and elemental carbon mass||4-hour||Sunset Laboratory Non-dispersive Infrared (NDIR) Carbon Analyzer|
|PM2.5 organic and inorganic composition||24-hour||Fourier Transform Infrared Spectrometer analysis of PM collected on filters|
|Gas phase SO2 concentration||1-minute||API 100e UV pulsed fluorescence monitor|
|Gas phase NOx concentration||1-minute||API 200e Chemiluminescence monitor|
|Gas phase CO concentration||1-minute||API 300e Gas-filter correlation monitor|
|Gas phase O3 concentration||1-minute||API 400e UV absorbance monitor|
A description of the TEOM PM2.5 instrument can be found here.
Application of the TEOM PM2.5 instrument can be found here.
Patashnick, H.& Rupprecht, E. (1991). J. Air & Waste Manage. Assoc., 41: 1079.
Patashnick, H., Rupprecht, G., Ambs, J. L. & Meyer, M. B. (2001). Aerosol Sci & Technol. 34:42.
Ann E. Wittig, Satoshi Takahama, Andrei Y. Khlystov, Spyros N. Pandis, Susanne Hering, Brent Kirby, Cliff Davidson, "Semi-continuous PM2.5 inorganic composition measurements during the Pittsburgh Air Quality Study" Atmospheric Environment 38 (2004) 3201–3213