Extended Data Fig. 2: ∑PAH concentrations at different sampling depths within an individual reservoir.
From: Regionally distinct threats from polycyclic aromatic hydrocarbons in global reservoirs
Different colors represent different sampling sites of sediments: Vossoroca (VS, Cluster α), Osaka Castle (OC, Cluster β), Echo (EC, Cluster γ), Fosdic (FS, Cluster γ), Como (CO, Cluster γ).
