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.

本数据集涵盖2022年7月罗马尼亚内陆架海域的水化学与地球化学数据，该海域海底水深介于15至67米之间。数据采集工作由R/V Mare Nigrum号科考船执行，依托BRIDGE-BS项目（WP5）以及国家项目“提升气候变化与人类活动压力相互作用及其对黑海生态系统影响认知的多学科研究”（项目编号PN19 20 0102）的航次开展。研究团队沿4条主要断面（圣格奥尔基-东南向、波尔蒂察-东南向、康斯坦察-东南向、曼加利亚-东向）布设21个采样站位，由格奥埃科马尔（GeoEcoMar）与“格里戈雷·安蒂帕”国家海洋研究与发展研究所（NIMRD "Grigore Antipa"）团队完成水体、沉积物及生物群落的调查采样。每个采样站位均使用YSI EXO2多参数水质仪完成海水理化参数的原位测定。采用5升尼斯金（Niskin）采水器采集不同深度的海水样品，随后在格奥埃科马尔实验室通过光谱法同时测定营养盐与叶绿素含量；重金属采用原子吸收光谱法（AAS），有机氯农药（OCPs）与多氯联苯（PCBs）采用气相色谱-电子捕获检测器法（GC-ECD），多环芳烃（PAHs）采用气相色谱-质谱联用法（GC-MS），所有分析均在NIMRD实验室完成。沉积物样品在格奥埃科马尔实验室通过X射线荧光光谱法测定常量、微量组分及痕量元素；而有机污染物（即OCPs、PCBs及PAHs）则在NIMRD实验室采用GC-ECD与GC-MS方法完成测定。