Gas geochemistry at Panarea shallow CO2 seeps during ECO2-2 cruise@en

Geochemical parameters were measured at two CO2 sites and one non-CO2-impacted site near the island of Panarea (Italy). All sites were located between ~15 and 20 m water depth at a temperature of 19°C. Gas samples were obtained for both CO2 sites. Sulphide was not detected (qualitatively). Detection limit for methane was 500 ppm.在意大利帕纳雷阿岛附近的两处二氧化碳（CO₂）影响站点与一处未受二氧化碳影响的站点，开展了地球化学参数测定工作。所有站点均设置于水深约15至20米、水温为19℃的海域。研究人员为两处二氧化碳影响站点采集了气体样品。经定性检测，未检出硫化物（Sulphide）。甲烷（methane）的检出限为500百万分比浓度（ppm）。