High-density metals and arsenic in algae of storm emissions from the coastal area of the Severny island of the Novaya Zemlya archipelago

Purpose of the Study is to assess the potential hazard in terms of the content of high-density metals (HDMs) and arsenic (As) for the consumption of objects of the Arctic algal flora presented in storm emissions in places of probable disembarkation of a crew, the ship has come in a distress or a disaster in the water area of the northern seas of the Russian Federation.

Materials and methods. The elemental composition of samples of the plants thrown by the wind-wave impact on the coastal area of the Severny island of the Novaya Zemlya archipelago. Before making the analysis, thallus fragments were dried at 80° C to constant weight to determine their dry weight with an accuracy of 1 mg. The material mineralization was carried out using a microwave mineralizer according to the standard technique. The elementary analysis was performed using MGA-915M atomic spectrometer. The data obtained were compared with the maximum permissible levels established by the current regulatory documents. According to the results of measurements, series of decreasing concentrations of HDMs in algae samples were built according to the places of collection and species.

Results and Discussion. It has been found that the lowest content of HDMs and arsenic in the wind-wave emissions of algae on the Severny Island in the Russkaya Gavan Bay of the Novaya Zemlya archipelago belongs to both Laminaria digitata and vegetative parts of the thallus of most of the other ejected algae. These plants can be used for food in extreme situations by the crews of a ship (an aircraft, etc.) who has come in a distress or a disaster.