Experimental research on the analysis of hydrocarbons in water in the Black Sea area refers to the study of the impact of hydrocarbon pollution on the marine environment and biodiversity. Hydrocarbons are organic substances made of carbon and hydrogen atoms, which can come from natural or anthropogenic sources. Hydrocarbon pollution affects the quality of water, sediments and marine organisms, with negative consequences for human health and the economy. Analyses of hydrocarbons in water in the Black Sea are aimed at assessing the degree and extent of pollution, identifying sources and types of hydrocarbons, to monitor their evolution and degradation over time, to estimate risks and effects on the environment and human, to propose measures to prevent, control and remedy pollution. For the 2023 period, we took specific water samples from nearby areas, which were sent for testing to the accredited laboratory for PAH determinations in water. For the period 2021–2023, we analyzed and compared the data received and those obtained with the values imposed by law, thus obtaining the chart for their standard deviation.