Water column and surface sediment chemistry in the Romanian inner shelf, 2022 (H2020 BRIDGE-BS project)

Dataset contains hydrochemistry and geochemistry data from the Romanian inner shelf waters (bottom depths between 15 and 67 m), in July 2022. Data were collected on board R/V Mare Nigrum, during a cruise conducted within the BRIDGE-BS project (WP5) and national project "Multidisciplinary research to improve knowledge of the climate change and human pressure interaction and its effects on the Black Sea ecosystem" - PN19 20 0102. Twenty-one stations distributed along 4 main transects (Sf. Gheorghe-SE, Portita-SE, Constanta-SE, and Mangalia-E) were performed for water column, sediment, and biota investigations by the GeoEcoMar and NIMRD "Grigore Antipa" teams. In situ measurements of physical-chemical seawater parameters were done at each sampling station using a YSI EXO2 multiparameter sonde. Seawater samples were collected with 5L Niskin bottles from different depths and further analyzed in the GeoEcoMar lab for nutrients and chlorophylls (both by spectrometry). Heavy metals (by AAS), OCPs (by GC-ECD), PCBs (GC-ECD), and PAHs (by GC-MS) were analyzed in the NIMRD lab. Sediment samples were analyzed for major and minor components as well as trace elements (by X ray fluorescence) in the GeoEcoMar lab, while organic organic contaminants, namely OCPs (GC-ECD), PCBs (GC-ECD), and PAHs (by GC-MS) were determined in the NIMRD lab.