Russia's Red River Another Sad Chapter for One of the Most Polluted Cities on Earth
Despite initially denying that there was anything wrong when the Daldykan River in Russia turned bright red virtually overnight, on Tuesday, Norilsk Nickel, the world's largest nickel manufacturer, has admitted responsibility. But for the Siberian city of Norilsk, it's just another sad chapter in its history.
Nickel manufacturing in Norilsk generates millions of tons of air pollution.Gelio / LiveJournal
The city of 175,000, which was founded in 1935 as a slave labor camp, was named one of the world's most polluted places on Earth by the Blacksmith Institute. WikiTravel advises potential visitors that "a substantial stay could jeopardize your health."
Norilsk owes its unfortunate accolade and its economy to some of the largest deposits of nickel on Earth. Mining began in the 1930s, and by 1953 was producing 35 percent of the Soviet Union's total nickel output, 12 percent of its copper, 30 percent of its cobalt and 90 percent of its platinum group metals. Today, it produces 20 percent of the world's nickel and 50 percent of its palladium.
Russian River Turns Red After Suspected Chemical Spill - EcoWatch https://t.co/WtJXFg1Nbw @foe_us @Sierra_Magazine— EcoWatch (@EcoWatch)1473471919.0
The company, headquartered in Moscow, which recently rebranded itself as Nornickel, issued a statement Monday attributing the Daldykan River event to abnormally heavy rains in the region that caused a dam containing tailings to overflow.
"Short-term river color staining with iron salts presents no hazards for people and river fauna," the statement declares.
Others are not so sure. Greenpeace Russia spokesman Alexei Kiselyov told Agency France-Presse (AFP), "You can't just say that it's no big deal." He noted that the remote area made any investigation more difficult and that the company controls access to the area. The Russian Ministry of Natural Resources and Environment has opened an investigation.
Indigenous people in the area accuse the company of weak safety standards. They are concerned about the effects of the spill downstream, where they fish in another river.
The now-shuttered plant was responsible for more than 4 million tons of cadmium, copper, lead, nickel, arsenic, selenium and zinc released into the atmosphere every year. The effects of decades of pollution are stark. Vegetation can't grow within a 20-mile radius. Acid rain covers an area the size of Germany. Heavy metal pollution is so great that the soil itself can be mined.
"Life expectancy is 10 years less than in other regions of Russia, the risk of cancer is two times higher and respiratory diseases are widespread," reports the Daily Mail. The city's polluted air may be responsible for 37 percent of child deaths and 21.6 percent of adult mortality.
Norilsk Nickel has a history of environmental problems, including a 2014 discharge of 145,000 pounds of nickel and other contaminants into the Kokemäki River in Finland. Finnish officials detected cobalt, copper, lead and cadmium. Mussels in the Kokemäki River died, and the chief executive officer of the Harjavalta Norilsk Nickel plant admitted that they were probably due to the company's actions.
For its part, the company insists that environmental responsibility is a priority, with a strategic plan in place since 2005.
In its 2015 annual report, Norilsk Nickel states, "The company has also put in place an integrated environmental reporting system embracing all of the group's operations and monitoring the achievement of environmental objectives." It says that wastewater charges "have been consistently reduced" and 99 percent of the company's wastes are classified as non-hazardous.
Norilsk Nickel also says that the shutdown of the 1942 Plant will remove 600 sources of air pollutants and cites the action as part of its environmental program. But more than seven decades of pollution and toxic waste have taken a toll on the environment and health of the Siberian community, which won't easily be restored.
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Where Does the Deficiency Begin?<p>Nobody knows exactly how much vitamin D a person actually needs. The question of when a deficiency starts is correspondingly controversial. However, vitamin D is becoming increasingly popular.Not only is the pseudo-scientific literature on the "sun vitamin" experiencing an upswing, but the number of published studies has also increased enormously in recent years. For example, in 2019 <a href="https://academic.oup.com/edrv/article/40/4/1109/5126915" target="_blank">a study found that</a> Vitamin D is responsible for keeping the skeleton functional and is associated with cardiovascular diseases, type 2 diabetes and various types of cancer. <br></p>
An All-Rounder<p>Vitamin D levels in the body rise and fall according to sun exposure. If sufficient UV rays reach the skin, the body is able to produce the vitamin itself. However, the human body only derives an estimated 10 to 20 percent of its daily requirement from food.</p><p>The vitamin D that we synthesize from sunlight or food is not biologically active at first. Before the kidneys can produce the biologically active form of the vitamin, known as calcitriol, and release it into the blood, some metabolic processes must take place beforehand.</p><p>In addition, many organs have receptors to which the precursor of calcitriol binds. Further, this substance is also present in blood.</p><p>From this precursor, the organs then produce calcitriol themselves, which the body then uses for countless other processes in the body. This form of vitamin D thus regulates insulin secretion, inhibits tumor growth, and promotes the formation of red blood cells as well as the survival and activity of macrophages, which are important for the <a href="https://www.mdpi.com/2072-6643/5/7/2502/htm" target="_blank">immune system.</a></p>
Low Vitamin D, Severe COVID-19 Disease?<p>A research study carried out <a href="https://www.sciencedirect.com/science/article/pii/S2352364620300067?via%3Dihub" target="_blank">at the University of Hohenheim</a> has now established a link between vitamin D deficiency, certain previous diseases, and severe cases of COVID-19.</p><p>According to the study, "there is a lot of evidence that several non-communicable diseases (high blood pressure, diabetes, cardiovascular diseases, metabolic syndrome) are associated with low vitamin D plasma levels. These comorbidities, together with the often accompanying vitamin D deficiency, increase the risk of severe COVID-19 events."</p><p>"This statement is completely correct," said Martin Fassnacht, head of endocrinology at the University Hospital of Würzburg. However, he qualifies that it is a pure association, "i.e. a mere observation that these events occur together.</p><p>Dr. Fassnacht is very critical of the hype surrounding vitamin D, but not because he denies the vitamin serves important functions. However, studies on humans have not been able to show that vitamin D has the healing powers many often propagate.</p><p>Fassnacht says, "If you take a closer look, the hopes that the administration of vitamin D has a healing effect have not been confirmed so far."</p>
Association Versus Intervention Studies<p>Many studies on the vitamin are association or observational studies. "By definition, these studies cannot prove the causal relationship, but only point to mere correlations," said Fassnacht. The physician tries to illustrate this with an example:</p><p>"Imagine two groups of 80-year-olds. One group is spry, active and does sports. If you compare them with another group living in nursing homes, the difference in vitamin D levels will be dramatic. Life expectancy would also be extremely different."</p><p>But to try to explain the difference in fitness by vitamin D status alone is far too simplistic. "Vitamin D levels are a good measure of how sick someone is. But not more," says Fassnacht. </p><p>According to Fassnacht, none of the intervention studies carried out to date -- that specifically examined the effect of vitamin D on various diseases -- has been able to confirm the previous association and laboratory studies or the presumed positive effect of vitamin D.</p>
Further Research Is Needed<p>"If a coronavirus infection is suspected, it is therefore absolutely necessary to check the vitamin D status and quickly correct any possible deficit," said the recommendation of the paper published by the University of Hohenheim.</p><p>"Studies are underway to see whether vitamin D helps in COVID-19 infection, but I personally do not believe that this is really the case," says endocrinologist Fassnacht. Nevertheless, he says it is of course useful to carry out these studies.<br></p><p>"I don't want to rule out that there are actually subgroups of people who benefit from an additional vitamin D dose," he says. After all, this has been proven to be the case with a severe deficit.</p><p>In view of the study situation, Fassnacht does not think much of preventive, nationwide vitamin D substitutes. "My belief that the vitamin helps somewhere is very low. But, of course, I can be wrong."</p>
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