Autores: Luis Ricardo Soares, Rodrigo Pereira Barreto Costa-Felix, Celso Barbosa de Sant’Anna Filho

Resumo:Air pollution is a severe problem that affects all regions of the planet. Its origins can be natural or anthropic, that is, caused by the actions of human beings. Nitrogen-based pollutants are gases capable of damaging the ozone layer and harming the population’s health, so taking measurements online is essential. Photothermal techniques can be used for this purpose. Thus, this article aimed to evaluate the efficiency of the photoacoustic method for the analysis of nitrous oxide through meta-analysis. With the studies participating in the meta-analysis, it is observed that photoacoustics has several advantages over chromatography, further demonstrating that the technique is capable of efficiently measuring nitrous oxide gas.

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