🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 160 (from laksa130)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa160.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.sciencedaily.com/releases/2018/02/180228092241.htm\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.sciencedaily.com/releases/2018/02/180228092241.htm\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm","crawl_time":1776224934,"first_indexed_time":1520253332,"http_code":200,"src_unparsed":"com,sciencedaily!www,\/releases\/2018\/02\/180228092241.htm s443","src_root_hash":"9815798517118690960","history_drop_reason":null,"meta_title":"New evidence of nuclear fuel releases found at Fukushima | ScienceDaily","meta_descriptions":["Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors."],"attrs_boilerpipe_text":"Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.\nThis could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester.\nThe team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been \"explicitly revealed\" by the study.\nThe scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them.\nThe reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant.\nIt was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years.\nDr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: \"Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact.\"\nThe Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study.\nHe added: \"Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy.\"\nAt present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead.","attrs_markdown":"[Skip to main content](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm#main)\n\n[![ScienceDaily](https:\/\/www.sciencedaily.com\/images\/sd-logo.png)](https:\/\/www.sciencedaily.com\/ \"ScienceDaily\")\n***\nYour source for the latest research news\n\n[Follow:](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [*Facebook*](https:\/\/www.facebook.com\/sciencedaily) [*X\/Twitter*](https:\/\/twitter.com\/sciencedaily) [Subscribe:](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [*RSS Feeds*](https:\/\/www.sciencedaily.com\/newsfeeds.htm) [*Newsletter*](https:\/\/sciencedaily.substack.com\/)\n\n**New\\!** Sign up for our free **[email newsletter](https:\/\/sciencedaily.substack.com\/)**.\n\nScience News\n\nfrom research organizations\n***\n# New evidence of nuclear fuel releases found at Fukushima\nDate:\n\nFebruary 28, 2018\n\nSource:\n\nManchester University\n\nSummary:\n\nUranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.\n\nShare:\n\n[Facebook](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Twitter](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Pinterest](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [LinkedIN](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Email](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm)\n\nFULL STORY\n***\nUranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.\n\nThis could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester.\n\nThe team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been \"explicitly revealed\" by the study.\n\nThe scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them.\n\nThe reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant.\n\nIt was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years.\n\nDr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: \"Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact.\"\n\nThe Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study.\n\nHe added: \"Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy.\"\n\nAt present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead.\n\n- [RELATED TOPICS](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm)\n  - [Matter & Energy](https:\/\/www.sciencedaily.com\/news\/matter_energy\/)\n    - [Nanotechnology](https:\/\/www.sciencedaily.com\/news\/matter_energy\/nanotechnology\/)\n    - [Batteries](https:\/\/www.sciencedaily.com\/news\/matter_energy\/batteries\/)\n    - [Electricity](https:\/\/www.sciencedaily.com\/news\/matter_energy\/electricity\/)\n    - [Materials Science](https:\/\/www.sciencedaily.com\/news\/matter_energy\/materials_science\/)\n  - [Earth & Climate](https:\/\/www.sciencedaily.com\/news\/earth_climate\/)\n    - [Energy and the Environment](https:\/\/www.sciencedaily.com\/news\/earth_climate\/energy\/)\n    - [Renewable Energy](https:\/\/www.sciencedaily.com\/news\/earth_climate\/renewable_energy\/)\n    - [Natural Disasters](https:\/\/www.sciencedaily.com\/news\/earth_climate\/natural_disasters\/)\n    - [Environmental Policy](https:\/\/www.sciencedaily.com\/news\/earth_climate\/environmental_policy\/)\n\n- [RELATED TERMS](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm)\n  - [Radioactive waste](https:\/\/www.sciencedaily.com\/terms\/radioactive_waste.htm)\n  - [Uranium](https:\/\/www.sciencedaily.com\/terms\/uranium.htm)\n  - [Nuclear power plant](https:\/\/www.sciencedaily.com\/terms\/nuclear_power_plant.htm)\n  - [Fracking](https:\/\/www.sciencedaily.com\/terms\/hydraulic_fracturing.htm)\n  - [Particle physics](https:\/\/www.sciencedaily.com\/terms\/particle_physics.htm)\n  - [Nuclear fission](https:\/\/www.sciencedaily.com\/terms\/nuclear_fission.htm)\n  - [Nuclear reaction](https:\/\/www.sciencedaily.com\/terms\/nuclear_reaction.htm)\n  - [Nanoparticle](https:\/\/www.sciencedaily.com\/terms\/nanoparticle.htm)\n***\n**Story Source:**\n\n[Materials](http:\/\/www.manchester.ac.uk\/discover\/news\/new-evidence-of-nuclear-fuel-releases-found-at-fukushima\/) provided by [**Manchester University**](http:\/\/www.manchester.ac.uk\/). *Note: Content may be edited for style and length.*\n***\n**Cite This Page**:\n\n- [MLA](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm#citation_mla)\n- [APA](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm#citation_apa)\n- [Chicago](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm#citation_chicago)\n\nManchester University. \"New evidence of nuclear fuel releases found at Fukushima.\" ScienceDaily. ScienceDaily, 28 February 2018. \\<www.sciencedaily.com\n\n\/\n\nreleases\n\n\/\n\n2018\n\n\/\n\n02\n\n\/\n\n180228092241.htm\\>.\n\nManchester University. (2018, February 28). New evidence of nuclear fuel releases found at Fukushima. *ScienceDaily*. Retrieved April 5, 2026 from www.sciencedaily.com\n\n\/\n\nreleases\n\n\/\n\n2018\n\n\/\n\n02\n\n\/\n\n180228092241.htm\n\nManchester University. \"New evidence of nuclear fuel releases found at Fukushima.\" ScienceDaily. www.sciencedaily.com\n\n\/\n\nreleases\n\n\/\n\n2018\n\n\/\n\n02\n\n\/\n\n180228092241.htm (accessed April 5, 2026).\n\n## Explore More\nfrom ScienceDaily\n***\nRELATED STORIES\n***\n[Using Antimatter to Detect Nuclear Radiation](https:\/\/www.sciencedaily.com\/releases\/2024\/10\/241001124604.htm)\n\nOct. 1, 2024  Discerning whether a nuclear reactor is being used to also create material for nuclear weapons is difficult, but capturing and analyzing antimatter particles has shown promise for monitoring what ...\n\n[Much More Than a World First Image of Radioactive Cesium Atoms](https:\/\/www.sciencedaily.com\/releases\/2024\/05\/240515122809.htm)\n\nMay 15, 2024  Thirteen years after the nuclear disaster at the Fukushima Daiichi Nuclear Power Plant (FDNPP), a breakthrough in analysis has permitted a world first: direct imaging of radioactive cesium (Cs) atoms ...\n\n[Using 1980s Environmental Modeling to Mitigate Future Disasters: Could Japan's 3\/11 Disaster Have Been Prevented?](https:\/\/www.sciencedaily.com\/releases\/2022\/11\/221110101756.htm)\n\nNov. 10, 2022  On March 11, 2011, multiple catastrophes in Japan were triggered by the Great East Japan Earthquake, including the nuclear accident at the Fukushima Daiichi Nuclear Power Plant. 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Questions?\n\n- [Leave Feedback](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm)\n- [Contact Us](https:\/\/www.sciencedaily.com\/contact.htm)\n\n[About This Site](https:\/\/www.sciencedaily.com\/about.htm) \\| [Staff](https:\/\/www.sciencedaily.com\/staff.htm) \\| [Contribute](https:\/\/www.sciencedaily.com\/contribute.htm) \\| [Advertise](https:\/\/www.sciencedaily.com\/advertise.htm) \\| [Privacy Policy](https:\/\/www.sciencedaily.com\/privacy.htm) \\| [Editorial Policy](https:\/\/www.sciencedaily.com\/editorial.htm) \\| [Terms of Use](https:\/\/www.sciencedaily.com\/terms.htm)\n\n[Copyright 1995-2026 ScienceDaily](https:\/\/www.sciencedaily.com\/copyright.htm) or by other parties, where indicated. All rights controlled by their respective owners. Content on this website is for information only. It is not intended to provide medical or other professional advice. Views expressed here do not necessarily reflect those of ScienceDaily, contributors or partners. Financial support for ScienceDaily comes from advertisements and referral programs.\n\nShare this page ...\n\n**New evidence of nuclear fuel releases found at Fukushima**  \n <https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm>\n\nUranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.\n\n[Facebook](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Twitter](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Pinterest](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [LinkedIN](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm) [Email](https:\/\/www.sciencedaily.com\/releases\/2018\/02\/180228092241.htm)\n\nClose","attrs_readable_markdown":"Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.\n\nThis could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester.\n\nThe team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been \"explicitly revealed\" by the study.\n\nThe scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them.\n\nThe reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant.\n\nIt was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years.\n\nDr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: \"Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact.\"\n\nThe Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study.\n\nHe added: \"Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy.\"\n\nAt present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead.","meta_canonical":null}

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Meta Title	New evidence of nuclear fuel releases found at Fukushima \| ScienceDaily
Meta Description	Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.
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Boilerpipe Text	Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. This could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester. The team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been "explicitly revealed" by the study. The scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them. The reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant. It was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years. Dr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: "Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact." The Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study. He added: "Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy." At present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead.
Markdown	[Skip to main content](https://www.sciencedaily.com/releases/2018/02/180228092241.htm#main) [![ScienceDaily](https://www.sciencedaily.com/images/sd-logo.png)](https://www.sciencedaily.com/ "ScienceDaily") *** Your source for the latest research news [Follow:](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Facebook](https://www.facebook.com/sciencedaily) [X/Twitter](https://twitter.com/sciencedaily) [Subscribe:](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [RSS Feeds](https://www.sciencedaily.com/newsfeeds.htm) [Newsletter](https://sciencedaily.substack.com/) New\! Sign up for our free [email newsletter](https://sciencedaily.substack.com/). Science News from research organizations * # New evidence of nuclear fuel releases found at Fukushima Date: February 28, 2018 Source: Manchester University Summary: Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. Share: [Facebook](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Twitter](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Pinterest](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [LinkedIN](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Email](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) FULL STORY * Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. This could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester. The team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been "explicitly revealed" by the study. The scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them. The reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant. It was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years. Dr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: "Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact." The Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study. He added: "Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy." At present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead. - [RELATED TOPICS](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) - [Matter & Energy](https://www.sciencedaily.com/news/matter_energy/) - [Nanotechnology](https://www.sciencedaily.com/news/matter_energy/nanotechnology/) - [Batteries](https://www.sciencedaily.com/news/matter_energy/batteries/) - [Electricity](https://www.sciencedaily.com/news/matter_energy/electricity/) - [Materials Science](https://www.sciencedaily.com/news/matter_energy/materials_science/) - [Earth & Climate](https://www.sciencedaily.com/news/earth_climate/) - [Energy and the Environment](https://www.sciencedaily.com/news/earth_climate/energy/) - [Renewable Energy](https://www.sciencedaily.com/news/earth_climate/renewable_energy/) - [Natural Disasters](https://www.sciencedaily.com/news/earth_climate/natural_disasters/) - [Environmental Policy](https://www.sciencedaily.com/news/earth_climate/environmental_policy/) - [RELATED TERMS](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) - [Radioactive waste](https://www.sciencedaily.com/terms/radioactive_waste.htm) - [Uranium](https://www.sciencedaily.com/terms/uranium.htm) - [Nuclear power plant](https://www.sciencedaily.com/terms/nuclear_power_plant.htm) - [Fracking](https://www.sciencedaily.com/terms/hydraulic_fracturing.htm) - [Particle physics](https://www.sciencedaily.com/terms/particle_physics.htm) - [Nuclear fission](https://www.sciencedaily.com/terms/nuclear_fission.htm) - [Nuclear reaction](https://www.sciencedaily.com/terms/nuclear_reaction.htm) - [Nanoparticle](https://www.sciencedaily.com/terms/nanoparticle.htm) * Story Source: [Materials](http://www.manchester.ac.uk/discover/news/new-evidence-of-nuclear-fuel-releases-found-at-fukushima/) provided by [Manchester University*](http://www.manchester.ac.uk/). Note: Content may be edited for style and length.* * Cite This Page*: - [MLA](https://www.sciencedaily.com/releases/2018/02/180228092241.htm#citation_mla) - [APA](https://www.sciencedaily.com/releases/2018/02/180228092241.htm#citation_apa) - [Chicago](https://www.sciencedaily.com/releases/2018/02/180228092241.htm#citation_chicago) Manchester University. "New evidence of nuclear fuel releases found at Fukushima." ScienceDaily. ScienceDaily, 28 February 2018. \<www.sciencedaily.com / releases / 2018 / 02 / 180228092241.htm\>. Manchester University. (2018, February 28). New evidence of nuclear fuel releases found at Fukushima. ScienceDaily. Retrieved April 5, 2026 from www.sciencedaily.com / releases / 2018 / 02 / 180228092241.htm Manchester University. "New evidence of nuclear fuel releases found at Fukushima." 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Financial support for ScienceDaily comes from advertisements and referral programs. Share this page ... New evidence of nuclear fuel releases found at Fukushima** <https://www.sciencedaily.com/releases/2018/02/180228092241.htm> Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. [Facebook](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Twitter](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Pinterest](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [LinkedIN](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) [Email](https://www.sciencedaily.com/releases/2018/02/180228092241.htm) Close
Readable Markdown	Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. This could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester. The team says that, for the first time, the fallout of Fukushima Daiichi nuclear reactor fuel debris into the surrounding environment has been "explicitly revealed" by the study. The scientists have been looking at extremely small pieces of debris, known as micro-particles, which were released into the environment during the initial disaster in 2011. The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair. The size of the particles means humans could inhale them. The reactor debris fragments were found inside the nuclear exclusion zone, in paddy soils and at an abandoned aquaculture centre, located several kilometres from the nuclear plant. It was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. Now it is becoming clear that small, solid particles were also emitted, and that some of these particles contain very long-lived radionuclides; for example, uranium has a half-life of billions of years. Dr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, says: "Our research strongly suggests there is a need for further detailed investigation on Fukushima fuel debris, inside, and potentially outside the nuclear exclusion zone. Whilst it is extremely difficult to get samples from such an inhospitable environment, further work will enhance our understanding of the long-term behaviour of the fuel debris nano-particles and their impact." The Tokyo Electric Power Company (TEPCO) is currently responsible for the clean-up and decommissioning process at the Fukushima Daiichi site and in the surrounding exclusion zone. Dr Satoshi Utsunomiya, Associate Professor at Kyushu University (Japan) led the study. He added: "Having better knowledge of the released microparticles is also vitally important as it provides much needed data on the status of the melted nuclear fuels in the damaged reactors. This will provide extremely useful information for TEPCO's decommissioning strategy." At present, chemical data on the fuel debris located within the damaged nuclear reactors is impossible to get due to the high levels of radiation. The microparticles found by the international team of researchers will provide vital clues on the decommissioning challenges that lie ahead.
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