Rhinitis is defined as the presence of nasal congestion, rhinorrhea, sneezing and/or nasal itching.15, 16 The pathogenesis of rhinitis is not well understood, but studies show an increase of inflammatory cells such as eosinophil, neutrophils, lymphocytes and increased interleukins proinflammatory in the nasal mucosa.17, 18, 19, 20 Among the interleukins proinflammatory, the interleukin 6 (IL-6), after its exposure to PM, increases in the acute phase of the inflammation, neutralizing pathogens and minimizing tissue damage.21 This evidence concerns the gene IL6 and rhinitis.