Use of resonant cavity spectrometer (CRDS) for methane detection in impacted and non-impacted areas

Abstract

Methane is one of the main greenhouse gases, impacting a lot on the radioactive forcing, contributing a lot to global warming. Identifying methane generating sources are important in mitigating actions, mainly of anthropic origin. In this work, methane emissions were observed in two distinct areas, one with low anthropogenic impact and the other with high industrial activity. A resonant cavity spectrometer (CRDS) was used to analyze methane concentrations during the months of June and July/2019 in the city of Itanhém and in the months of September, October and January of 2019 in the city of Cubatão.