Five years measurements of CO2 air concentrations by DSA IR laser devices. Results and perspectives for laser remote sensing systems of gas emissions by critical areas

In this work we summarize some of the results obtained using a portable IR laser device during measurement campaigns of CO2 concentrations in air from different environmental sites characterized by gas emissions. The IR laser measurements for the remote sensing have been carried out in volcanic, geothermal, industrial and waste disposal areas. The measurement methods we are developing, based on gas concentration measurements in air by IR laser devices on optical links, seem to be particularly suitable when CO2 gas emissions cannot be measured by means of other reliable methods.