Showing posts with label radiation. Show all posts
Showing posts with label radiation. Show all posts

Saturday, August 24, 2019

A Pyongsan Addendum

On August 8, 2019 I wrote a post about highly visible leaks at the Pyongsan Uranium Mine and Milling Factory. In the post are satellite images that clearly show waste leaking going back to at least 2003.

Despite the other things that I have been able to show through the #AccessDPRK project, this particular one caught the attention of the international media. Before long I was being contacted by Radio Free Asia and then UPI picked it up, followed by Chosun Ilbo, UK tabloids, and even state sponsored sites like Sputnik News. Some contacted me directly while others brought in their own experts to do the analysis. Almost all of these additional experts agreed that pollution of any kind from the plant would be cause for concern.

However, all of this attention also meant that people started asking other questions and needing clarification. Some, it seems, have even tried to deliberately distort what it is I actually said to fit their own narrative. I want to take this time to clear a few things up and to offer additional support for what I have said.


First, my original post is titled "Radioactive River" because it is about a uranium facility polluting a river. In that post I only talked about pollution in general terms saying, "the pipe taking waste materials to the open reservoir has leaks and has been spilling toxic water into the Ryesong's tributary". I said that the Ryesong is the main water source for 200,000. (However, if you widen the area to include a few extra miles on either side of the river, that figure doubles to 400,000.)

The first interview I had was with Radio Free Asia. The three minute phone call consisted of very few questions. One of the questions asked was if the waste material could be radioactive. I said yes, that some of the material could be. That one answer seems to be what most people are concerned about and confused over.

North Korea uses low-grade coal as the uranium source. Pyongsan's coal has 0.26% uranium concentration. Apart from that, lower grade coal also contains lead, arsenic, vanadium, cobalt, and other heavy metals as well as small amounts of additional radioactive material. Processing and burning coal leaves behind radioactive waste. A 2007 Scientific American article put it succinctly, "coal ash is more radioactive than nuclear waste". This is because burning it concentrates the impurities already existing within the coal. But the coal always had those materials inside of it, regardless of burning. The coal is still not pure. Whether it is burnt, crushed, or just dumped into a river, it is not a safe material to be placing into a water supply


The black sludge seen at the Pyongsan reservoir is the leftover coal from the plant along with residual acids and other industrial products. It is moved from the plant in slurry form and emptied into the reservoir. During that movement, some leaks out of cracks in the pipe and ends up contaminating the Ryesong River which then eventually flows into the Han River estuary.

Regardless of the inherent dangers of leaking coal slurry, uranium mining and milling (the process of turning uranium ore into yellowcake) creates its own radioactive waste.

According to the EPA, "regardless of how uranium is extracted from rock, the processes leave behind radioactive waste....The tailings remain radioactive and contain hazardous chemicals from the recovery process."

The key to making the process safe is proper handling and storage of the waste products. North Korea is not a member of the International Labour Organization which plays a major role creating safety rules for those that work around radioactive materials. Additionally, there is no evidence that the reservoir is lined. Lining the reservoir is an extremely important part of ensuring that the toxic water doesn't leak into rivers and groundwater. The fact it is unlined was mentioned by Dr. Jeffrey Lewis, the director of the East Asia Nonproliferation Program at the Center for Nonproliferation Studies. Dr. Lewis stressed on his website the negative health concerns associated with dumping the material into an unlined pond saying, "What is definitely happening, though, is that North Korea is dumping the tailings from the plant into an unlined pond, one surrounded by farms. That’s not a hypothetical harm.  That’s actual pollution that is harming the health and well being of the local community."

The facts are beyond dispute, and regardless of the exact amount of radioactive material being spilled into the river, there are also large amounts of other dangerous chemicals that are leaking out: the aforementioned lead, arsenic, vanadium, mercury, and others. All of those things cause health problems and there is no "safe limit" to lead and arsenic ingestion.

Aside from the leaking material, even the waste within the reservoir poses a risk. During periods of dry weather, the surface of the sludge pile can dry out. Wind can pick up those small particles and carry them for miles, depositing them on land, homes, and within the lungs of anyone breathing it.

Pyongsan doesn't exist in a vacuum, either. Defector testimony from those who have worked in North Korea's nuclear program (either as miners, technicians, scientists, etc.) or simply lived in areas around nuclear sites have pointed to ongoing heath problems and birth defects. Recent defectors have even shown evidence of radiation exposure because they lived downwind of North Korea's Punggye-ri nuclear test site. The people downriver of Pyongsan aren't immune to pollution.
I am not trying to be alarmist. This is not Chernobyl or Fukushima, but all of this provides strong evidence that there is an ongoing health crisis in this part of North Korea and that some of the toxic materials being dumped into the Ryesong will inevitably reach the Han River.



I am not a nuclear weapons expert. I have never claimed to be. I am a concerned individual who has spent the last seven years of his life studying North Korea and bringing attention to important issues. I am not getting paid by any government or partisan organization. And while I don't know what constitutes being an "expert" to some, my years of work speaks for itself. I created a map with 53,000 locations, I was the first to report on a new test site at the Tonghae Satellite Launch Station, I have multiple reports on the growth of North Korea's military, I created a survey of the country's archaeological sites using open-source satellite imagery, and I was the first to report on the replica of Panmunjom. I think that qualifies me to say that black industrial waste flowing into a river is a bad thing.

Evidence of widespread contamination from various nuclear-related facilities exist around the world. And continuing fears over Fukushima and the recent accidents in Russia mean that we must all be vigilant. For my part, I will continue to observe every square mile of North Korea and to report on the things I find.


--Jacob Bogle, 8/24/2019
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Wednesday, December 13, 2017

Possible NK Atmospheric Nuclear Test

North Korea is the only country to have tested nuclear weapons since 1998, when India and Pakistan both held their final underground tests, and all of North Korea's six nuclear tests have been carried out underground at the Punggye-ri Nuclear Test Site beneath Mantap Mountain (which is adjacent to the Hwasong Concentration Camp).

The firing of the Hwasong-15 Intercontinental Ballistic Missile (ICBM) on Nov. 28, 2017. Image from Rodong Sinmun.

Under Kim Jong Un, North Korea's nuclear and ballistic missile programs have become incredibly advanced and the speed of their accomplishments have often taken analysts by surprise. The development of these systems has occurred under the "two-track" or byungjin philosophy which seeks to develop the country's nuclear program and domestic economy in parallel. While their economy creeks along, it is becoming apparent that their nuclear and ballistic missile programs have been able to become largely self-sufficient and are produced with indigenous materials and technology.

The September 2017 nuclear test was their largest test by far with a yield estimated to have been between 100 and 250 kilotons, which places it several times larger than the atomic bombs dropped on Japan during World War II. Furthermore, it is possible that the tested device was a hydrogen bomb and that the warhead could have a variable yield, allowing North Korea to "dial" up or down the warhead's power.

On the ballistic front, their November 2017 test of the Hwasong-15 ICBM showed that they could theoretically hit any part of the United States (and a majority of the rest of the world). While questions remain about the missile's ability to survive reentry, there is no doubt that this is a huge step forward. Its size, range, and changes to the reentry vehicle over the Hwasong-14, all point to a program that is rapidly nearing completion.


At this point you may be asking what all of this has to do with the title? In October 2017, North Korea's Foreign Minister, Ri Yong Ho, said that Kim Jong Un was committed to testing a nuclear weapon in the atmosphere. And rumors of such a test have been heard prior to this statement, too. Atmospheric nuclear testing was last carried out in 1980, by China. The US, Soviet Union, and UK each ended their atmospheric testing in 1963 with the signing of the Partial Test Ban Treaty (PTBT).

North Korea's Exclusive Economic Zone (EEZ) in red, South Korea's in green. Data from Marine Regions.

The purpose of such a test would be, ostensibly, to prove their ability to attach a nuclear warhead to a missile and then to fire it off toward the sea and have it detonate - demonstrating they are indeed a fully capable nuclear weapons state. Any test would have to be carried out within the limits of North Korea's territorial waters, or at a maximum, its exclusive economic zone. Firing a nuclear missile outside of their EEZ would trigger a major world crisis the likes of which hasn't been seen since the Korean War.
Of course such a test (regardless of whether or not it occurred within their own territory) would likely permanently alter regional relations, could easily drive China out of whatever remaining alliance with the DPRK they have, spur Japan into full-on re-militarization, and could even lead to an attack on the North by either South Korea or the US. It's also highly unlikely that the US would sit idly by and watch as North Korea mounted a nuke onto a missile and fire it. So the chances of an atmospheric test are rather low in my estimation.

Beyond the geopolitical implications, the environmental impact would also undo progress toward addressing the radioactive genie that was released after the Trinity Test in 1945.

Atmospheric testing releases huge amounts of radiation into the environment. A 2013 study that looked at atmospheric radiocarbon showed that 2010 levels were at their lowest since the late 1950s, with the PTBT being the seminal moment when radiocarbon rates began to sharply decline.

Chart showing the percentage of Carbon-14 in the atmosphere from 1950-2010. (Source: Atmospheric Radiocarbon for the Period 1950–2010)

Above ground tests (atmospheric or otherwise) also release large amounts of radioactive Iodine, Strontium, Uranium (obviously), Caesium, Xenon, and other radionuclides. The half-lives of these materials range from a few hours (as in the case of Xenon) to hundreds of years and longer. Above ground testing can throw radioactive particles as high as 50 miles into the atmosphere where they will then be carried by the winds for many miles (with minute amounts traveling the globe) until they eventually settle back down to the ground and sea where they will continue to release radiation for years to come. Local radioactive fallout can extend in a plum easily over 100 miles long, placing each regional nation at risk of receiving fallout depending on the specifics of the test and weather conditions at the time.


All of these risks - the overt threats to South Korea, Japan, and the US, the dangers of spreading fallout over Chinese or Russian territory, etc. - are why I hold strong doubts that North Korea would ever conduct an above ground test. However, while thinking on the subject, I also considered what ground locations may exist that North Korea could use to conduct an old-school non-atmospheric above ground test.

Analysts have determined that the Punggye-ri test site may have experienced tremendous damage, particularly as a result of the latest test. While activity at other tunnels around the site has been seen, continued nuclear testing greatly raises the risk of a major collapse and release of radioactive materials. So the next best thing may be an above ground test.

Possible suitable locations for an above ground nuclear test.

I searched for the criterion of a 12-mile diameter circle (an "exclusion zone") that didn't overlap with any populated areas or, in the case of islands, that didn't overlap another island group or cross onto the mainland, and that wasn't too close to China or Russia. I was able to locate four such places. Three of which are islands/group of islets, and one is the Punggye-ri site itself. Punggye-ri is isolated enough that there are no cities or towns within the 12-mile circle and the nearby concentration camp (with its thousands of prisoners) would partially be protected from the immediate radioactive fallout effects by the mountain itself.

The other three sites are far enough away from the coast and any populated islands that the civilian population would be safe from the actual blast of a nuclear device, so long as it wasn't too large. These sites also have the added benefit of being within North Korea's internationally accepted territorial claims, which would give Pyongyang some degree of diplomatic cover.

We can only wait and see if Kim Jong Un thinks it's worthwhile to set off a nuclear device in the open, be it fired from a missile into the sea, set off on an island, or even detonated in the ocean from a barge, but one thing we can be sure of is now that he has a bomb and a missile, he won't be giving them up for cheap.


--Jacob Bogle, 12/12/2017
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Additional Reading
1. Nuclear Weapons Testing and Environmental Consequences: A Global Perspective, Remus Prăvălie, February 2014 (Ambio, A Journal of the Human Environment)

Saturday, September 16, 2017

NoKo's Underground Nuclear Nightmare

UPDATE: On October 31, 2017, Japanese media are reporting that a large tunnel collapse occurred at the site, killing around 200 people. This has yet to be confirmed.


On September 3, 2017, North Korea conducted its sixth and largest (by far) nuclear test. North Korea's only nuclear test site is Punggye-ri in North Hamgyong Province. At this point I want to say that this post is speculative in nature and that there is little concrete evidence to support what I am suggesting. However, there is anecdotal evidence and a logic to it. Enough so that I feel this is worth discussing.

The main tunnel at Punggyi-ri also happens to be less than 2 miles away from the boundaries of the Hwasong concentration camp (Kwan-li-so 16).


The apparent location (based on USGS information) of this most recent nuclear test lies a mere 0.3 miles (0.5 km) away from the camp fence, and North Korea's first test in 2006 appeared to have taken place inside the camp itself (underground, of course).


I believe the proximity of Punggye-ri and Camp 16 (with its 20,000 prisoners)  may be important.

There are multiple reports by defectors (including testimony by Ahn Myong-chol, a former guard at Camp 22), that North Korea has a history of using prisoners in medical experiments, including testing chemical weapons, as well as prison labor for the construction of sensitive military facilities, including underground sites.

Based on the relative locations[n1] of each of the nuclear tests, the underground tunnel system is massive, with the majority of test sites more than 3 miles away from the main tunnel entrance. The Sept. 3, 2017 test is almost 5 miles away! This means lots and lots of tunneling work.

A few small mounds of debris can be seen at the entrances of the various tunnel entrances; however, the amount of debris is nowhere near enough as would be required for excavating a tunnel a mile long, let alone multiple tunnels. A very basic tunnel 1 mile long, six feet tall, and six feet wide would create 190,080 cubic feet of material. However, an image released by North Korean TV suggests their tunnels aren't simply a straight line (which could easily become disastrous during testing).



This suggests that the North Koreans are using material from new tunnels to back fill the old tunnels after each nuclear test, as the growth of the outside debris mounds do not entirely reflect the growth that would be needed if they were dumping all of the excavated materials outside. The fact radioisotopes can be detected outside of the country after some tests, shows that their testing site is far from sealed, thus it would be necessary to mitigate the slow continual release of radiation by filling up used tunnels with the material taken to construct new ones. Unfortunately, the discovery of visible changes to the surface of the mountain raises the likelihood that further releases of radiation will happen.


Back to Hwasong, it's not beyond the realm of possibility that the regime is taking advantage of this nearby and captive workforce to do the difficult and dangerous task of constructing these testing tunnels. There is a fair amount of evidence that prisoners are used to construct the thousands of tunnels and underground facilities that have turned much of North Korea's ground into Swiss cheese. And, there are even occasional but brief comments that can be found in media sources that touch on the idea of these prisoners being used to do the hard work at Punggye-ri.

Average citizens are subjected to terrible conditions in the country's coal mines, and even in uranium mines and enrichment facilities safety is practically nonexistent, with workers developing multiple radiation-related illnesses. Political prisoners on the other hand aren't even considered citizens. Their very title of "human" appears to vanish along with every right and privilege that otherwise exists in North Korea.

Using these men to dig, repair, and fill the tunnels has several benefits to the regime. Here are four benefits that immediately come to mind:

1) The government doesn't have to worry about paying wages or properly feeding them, saving large sums of money.
2) There are no families to deal with whenever a loved one comes home with a shattered leg or dying from radiation exposure (or coming home in a body bag).
3) Due to the way such prisoners are managed, using them provides a large level of greater secrecy and security. Even loyal soldiers may inadvertently spill sensitive information to friends or family. Who are slave laborers living behind electrified fences going to tell?
4) Using expendable lives saves the lives of more valuable people.

We do know that the tunneling process itself is fairly basic. North Korea doesn't have the ability to employ the large modern mining or tunneling equipment other industrial countries have. Using dynamite, hand tools, brute force, and small carts to carry away rocks is about all they have. Satellite imagery confirms this is true at Punggye-ri, too, as the simple equipment can clearly be identified.

Beyond the horrors associated with working hour after hour and week after week near incredibly toxic mixes of radiation and heavy metals, there are also dangers faced by nearby populations.

The northern part of Korea has always been neglected. This was the case during the historic dynastic period and was the case during North Korea's famine - when supplies were cut off and redirected to the more "important" capital region. Punggye-ri is located in the northernmost province. Of North Hamgyong's 2.5 million inhabitants, nearly 2 million lie directly east and north of the nuclear site, which means any radiation release will spread to those areas on wind currents.

Absent full-on containment failure, where plumes of material is tossed into the atmosphere, partial failures can still release Cesium-137, Iodine-131, and Strontium-90, all of which can spread by the wind and contaminate the ground (and thus the grass, which in turn will contaminate any animals eating that grass and eventually the people eating the animals). Seepage of Krypton-85 and Xenon-133 through cracks in the mountain can also contaminate the area. Krypton-85 has a half-life of 10.7 years, meaning if any was released by the first nuclear test back in 2006, half of it is still hanging around. To add context and bring this closer to home, the National Cancer Institute published a study in 1997 that showed 2,800 cases of thyroid cancer in the US each year can be attributed to our own nuclear tests during the "underground era" (1962-92).

Continuing research by 38 North suggests that major fractures may have developed in the mountain, and that further large-yield nuclear tests could severely destabilize the site and release enormous amounts of radioactive debris.

We may never know for certain if prison labor was used to build these miles of tunnels and what, if any, effects have happened as a result of radiation contamination, but the fact there's enough anecdotal evidence and internal logic to support the basis of this post is very disturbing. The world already knows about the routine torture, rape, murder, forced abortions, and starvation that goes on in North Korea's prison camps. The world knows about the lasting harm to people living in the US and on small Pacific islands near nuclear testing sites. I don't see what's so difficult about expecting that the two scenarios would merge in North Korea when all of the pieces are laying in front of us.

--Jacob Bogle, 9/16/17
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Note
1. All of the locations are based on coordinates given by the United States Geological Survey. These coordinates are only approximate and may be off by over a mile.