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PCB warning label on a power transformer known to contain PCBs. Polychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1976 and internationally by the Stockholm Convention on Persistent Organic Pollutants in 2001.
PCB-compounds, always containing low concentrations of dioxin-like PCBs and PCDFs, were synthesized for various technical purposes (see Polychlorinated biphenyls). They have entered the environment through accidents such as fires or leaks from transformers or heat exchangers, or from PCB-containing products in landfills or during incineration.
This article lists the weapons, vehicles and equipment used in the Russo-Ukrainian War, from 2014 to the present.The war involves the Armed Forces of Ukraine, the Armed Forces of Russia, the People's Militia of the Donetsk People's Republic, the People's Militia of the Luhansk People's Republic, and a number of national guard and volunteer groups.
Wildlife of Ukraine. Pine forest near Klavdievo, Bucha Raion, Kyiv Oblast. The wildlife of Ukraine consists of its diverse fauna, flora and funga. The reported fauna consists of 45,000 species when including the areas of the Black Sea and the Sea of Azov. [1] Ukraine 's protected environments consist of 33 Ramsar sites covering an area of 7,446 ...
Weapons of mass destruction. Ukraine, formerly a republic of the Union of Soviet Socialist Republics (USSR) from 1922–1991, once hosted Soviet nuclear weapons and delivery systems on its territory. [1] The former Soviet Union had its nuclear program expanded to only four of its republics: Belarus, Kazakhstan, Russia, and Ukraine.
The Kramatorsk radiological accident was a radiation accident that happened in Kramatorsk, Donetsk Oblast, in eastern Ukrainian SSR from 1980 to 1989. A small capsule containing highly radioactive caesium-137 was found inside the concrete wall of an apartment building, with a surface gamma radiation exposure dose rate of 1800 R /year. [1]
In the Neolithic, the Trypillians in Ukraine made jewellery of naturally occurring metals such as copper. The pieces included spiral armlets, rings, diadems, and necklaces from shells, copper tubes, and mother-of-pearl discs. In the 8th to 6th centuries BCE, the Cimmerians brought new artistry to jewellery making.
Russian Ground Forces. On 15 September 2022, several mass graves, including one site containing at least 440 bodies, were found in woods near the Ukrainian city of Izium after it was recaptured by Ukrainian forces during the Russian invasion of Ukraine. [1] [2] The graves contained bodies of people who were killed by Russian forces.