Varvara Dmitrieva: The jewelry industry of Yakutia is distinguished by its creativity, unique cultural code and conservation of traditions

Varvara Dmitrieva, Associate Professor and Head of the Department of Precious Stones and Metals Processing Technologies of the North-Eastern Federal University, told Rough&Polished about the results of the Forum of jewelry Craftsmanship and the prospects...

Yesterday

Valery Budny: There is no strategy and legislation in Russia enabling the full cycle processing of precious raw materials within the country

Valery Budny, Head of the Jewelry Russia program and CEO of the JUNWEX media holding, told Rough&Polished about the results of the meeting and pressing issues in the precious metals and precious stones (PMPS) and the jewelry sectors.

11 april 2024

Paul Zimnisky: Natural diamonds face the risk of eroding their appeal if constantly discounted

New York-based independent diamond and jewellery analyst and consultant Paul Zimnisky told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that the industry should do away with discounts. He said the industry should treat natural diamonds...

01 april 2024

Edahn Golan: Lab-grown diamond prices to continue declining

In an exclusive interview with Rough&Polished's Mathew Nyaungwa, Edahn Golan, proprietor of the eponymous Edahn Golan Diamond Research and Data, predicted that the prices of lab-grown diamonds would continue to decline, especially at the retail and...

25 march 2024

ADPA’s Ellah Muchemwa: G7 restrictions to bring extra costs from diamond mining to retail

The African Diamond Producers Association (ADPA), which has openly registered its disdain for the G7’s rough diamond trade restrictions, is of the opinion that the move will bring extra costs on all stages, from mining to retail. ADPA executive...

18 march 2024

Most birds in the Arctic and Antarctic contaminated with microplastics - research

18 march 2024

Italian scientists from the Third University of Rome have assessed the extent of the impact of microplastic pollution on wild animals of the polar regions of the Earth. The study was published in the scientific journal Frontiers in Marine Science.

The Arctic and Antarctica are being increasingly affected by plastic particles falling on floating ice and land. There are not only large macroplastics (>5 cm), but also microplastics (0.1–5 mm) and nanoplastics (<0.1 microns), which can be transported over large distances from the source or penetrate into the organisms of creatures during seasonal migrations.

The researchers examined more than 1,100 samples of the stomach contents and excrement of polar birds. They found that 13 species of marine birds ingest microplastics. Among them were various species of penguins, petrels, loons, kaira and others.

The analysis showed that 90% of birds in the Arctic and 97% of birds in Antarctica feed on microplastics.

Scientists have identified 14 types of polymers, the predominant form of which turned out to be polyethylene, followed by polypropylene and polystyrene.

Scientists are concerned not only about the direct ingestion of microplastic particles. They have been found in krill, a food source for some penguins, which highlights a larger problem in the ecosystem and trophic networks, www.gazeta.ru reported.

Alex Shishlo for Rough&Polished