Building the future by doing more together

CN-linkAIR - Can the carbon and nitrogen linkage patterns reveal the origin of the water-soluble organic matter in atmospheric aerosols?
Coordinator - Regina Duarte
Programme - FCOMP-01-0124-FEDER-027806 || PTDC/AAG-MAA/2584/2012
Execution dates - 2013-07-01 - 2015-09-30 (27 Months)
Funding Entity - COMPETE; FCT
Funding for CESAM - 135634 €
Total Funding - 159154 €
Proponent Institution - Universidade de Aveiro
Participating Institutions
Centro de Neurociências e Biologia Celular (CNBC/UC)
Fundação da Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa (FFCT/FCT/UNL)

Additional Research Unit
Centro de Investigação em Materiais Cerâmicos e Compósitos (CICECO/UA)
REQUIMTE (Rede de Química e Tecnologia) - Laboratório Associado para a Química Verde (REQUIMTE)

The CN-linkAIR research proposal aims at providing new insights on the structural features of carbon and nitrogen linkages of the water soluble organic matter (WSOM) in fine atmospheric aerosols collected in an urban location at the Western European Coast under different meteorological conditions. The original contribution of this research derives from the application of a state-of-the-art, well-established analytical methodology that couples an isolation procedure with the investigation of the carbon and nitrogen bond connectivities through powerful analytical techniques (e.g. one- and two-dimensional solid-state and solution-state nuclear magnetic resonance techniques, and high-resolution mass spectrometry). The elemental composition (C,H,N,O) and thermo-oxidative behaviour of the WSOM samples will also be assessed. This research proposal will also include global carbon balances and assessment of the water-soluble inorganic content of the particulate matter. The structural information obtained will be discussed in detail, in an attempt to inferring the contribution from different sources and the influence of seasonal variability on the chemical properties of aerosol WSOM. All data on the composition of WSOM will be complemented with meteorological data and used for develop universally valid conclusions regarding the origin and processes potentially responsible for the presence of this organic fraction in fine air particles.
The CN-linkAIR strategy will help to cover a lack of reliable information regarding the structure-origin relationship of the ubiquitous WSOM in aerosols, using the Western European Coast region as a case-study. It will also provide a new insight on how nitrogen is incorporated in the water-soluble organic matrix, allowing establishing possible pathways to clarify the origin of aerosol WSOM. From the scientific-technical point of view, this project brings together a multidisciplinary research team with large scientific experience in the application of a set of state-of-the-art analytical techniques for analysis of complex environmental matrices.

Members on this project

Research Fellow

MSc Student
Research Fellow

CESAM Funding: