Study of Chronic Exposure of the Population Living on the Atlantic Coast and on the Caribbean Coast, in Martinique, During the Stranding Period and Outside the Stranding Period of Sargassum Seaweeds

"FeNO measurement is a marker of airway inflammation. It is a non-invasive examination for the patient, easy to perform for healthcare personnel, the measurement of NO in exhaled air is one of the only non-invasive and reproducible examinations allowing the detection of inflammation airways.~The FeNO will be measured by an electrochemical NO analyzer of the NiOx Vero type (Circassia, The Surgical Company) and expressed in particles per billion (ppb). The objective and reproducible measurement of NO production by the bronchial mucosa is a reflection of the degree of airway inflammation. The measurement of exhaled NO is part of diagnostic health technologies aimed at quantifying airway inflammation, especially in asthmatic patients.~FeNO is considered normal for values of 16-25 ppb. A FeNO value \> 25 ppb will be a reason for consultation at the Martinique Hospital for additional assessment."

"Spirometry tests will assess lung function. It is a safe and painless test to measure lung volumes and expiratory flows.~Ventilatory function is assessed by simple spirometry parameters such as forced expiratory volume in the first second (FEV1, in litres), vital capacity (CV, in litres), and the FEV1/CV ratio.~The results of the spirometry will be compared with the theoretical or predicted values calculated according to age, sex, height.The FEV1/CV ratio as a percentage is an indicator of the level of bronchial obstruction.~Spirometry is considered normal for CV values ≥80% and FEV1/FVC ≥0.70 of the predicted value. A value of CV \<80% or FEV \<80% of the predicted value will be a reason for consultation at the Martinique hospital for additional assessment."

"A pulmonary clinical examination will be carried out by the investigator, including:~* Cough,~* Sputum,~* Vesicular murmur (MV),~* Added noises (BSA),~* Vocal vibrations (VV),~* Tympanism,~* Dullness,~* Signs of acute respiratory distress (ARD),~* …"

"Participants will undergo an interview with the medical team to collect the following information in particular:~Age, size, sex, medical history, smoking status, current treatments, potential symptoms, date of first symptoms, clinical manifestations experienced (respiratory, digestive, neurological, cardiac, psychiatric, visual, skin disorders, etc.) place of residence, concentration H2S in ppm on the site, presence of sand mist in the environment, etc."