Atmospheric Chemistry Group
Prof. Mark A. Zondlo
Department of Civil and Environmental Engineering
Center for Mid-Infrared Technologies for Health and the Environment
Princeton University

Mobile Open-path Sensing Platform

Global warming and climate change have drawn increasing attention to greenhouse gas and air pollutant emissions. The spatial and temporal distributions of these trace gases are critical for understanding their sources and sinks. Existing technologies are either too cumbersome or low sensitivity for the urgent need of widespread monitoring.

We have developed a mobile platform that measures multiple important trace gases (including CO2, CO, CH4, H2O, N2O and NH3) with open-path portable gas sensors using NIR and mid-IR lasers as light sources. Our mobile platform can be readily installed in passenger vehicles. This multi-gas mobile platform shows very promising performance and gives new insights for local scale urban and agricultural emissions in field campaigns such as DISCOVER-AQ and CARE-BEIJING NCP in 2013. We have already used our mobile platform to perform trace gas measurements for more than 7000 kilometers and 140 hours.

In the News:
Mobile Laboratories Measure Air Quality in Houston
Mobile air sensor lab takes a California road trip

Mobile platform deployed in Porterville, California during the NASA DISCOVER-AQ field campaign in January-February 2013.

Mobile open-path sensors deployed in China during the CARE-BEIJING-NCP field campaign in June 2013.