Поведение миграционных форм никеля в воде по континууму «эстуарий реки Миус – Таганрогский залив Азовского моря»

Abstract

The studys results of nickel (Ni) migration forms in water along the continuum “the Mius River estuary - the Taganrog Bay of the Azov Sea” are presented. Standard methods, specialized equipment and mathematical and statistical analysis were applied. It is revealed that experimental data on the content of the nickel dissolved form do not exceed global background concentrations. The nickel suspended migration form with dominant values in the Mius River zone (54-71 % of the gross content) prevailed along the continuum. A symbiotic behavior was established for all Ni migration forms with a general decrease in concentrations along the profile of “the Mius River→the Taganrog Bay”. A correlation analysis was carried out between the contents of Nigr., Nidis., Nisusp., Nisusp. in % of the total and physical and chemical parameters, as well as various forms of iron. The significance level of p≥0.05 was noted in the pair S (‰) and Nigr., Nidis., Nisusp., and moderate direct connections are characteristic of the pairs Ni susp. in % of the total – Fegr., Nigr. – Fesusp. in % of Fegr. and Nisusp. in % of the total – Fesusp. in % of Fegr.. With a sub-parallel decrease in these indicators, the withdrawal of both nickel and iron into the bottom sediments was recorded.