List of ammonium nitrate incidents and disasters explained

__FORCETOC__When heated, ammonium nitrate decomposes non-explosively into nitrous oxide and water vapor; however, it can be induced to decompose explosively by detonation into oxygen, nitrogen, and water vapor. Large stockpiles of the material can be a major fire risk due to their supporting oxidation, and may also detonate, as happened in the Texas City disaster of 1947 which led to major changes in the regulations for storage and handling.

There are two major classes of incidents resulting in explosions:

Ammonium nitrate decomposes in temperatures above . Pure AN is stable and will stop decomposing once the heat source is removed, but when catalysts are present, the reaction can become self-sustaining (known as self-sustaining decomposition, or SSD). This is a well-known hazard with some types of NPK fertilizers and is responsible for the loss of several cargo ships.

Timeline of major incidents

The column AN states the amount of ammonium nitrate consumed in the disaster in metric tonnes.

CountryLocationDatedata-sort-type="number" DeathsAN (tonnes)Notes
Gibbstown, New Jersey11.81In an evaporating pan of the Repauno works, du Pont Co., 4000lb of ammonium nitrate exploded, possibly caused by a clogged air lance leading to overheating of the nitrate. 1 man was killed and 12 were injured.[1]
Faversham, Kent115700The Great Explosion

On April 2, 1916, at 14:20, a factory in Uplees, Faversham, exploded after a fire spread to a store of 25 tons of TNT and 700 tons of ammonium nitrate. The blast at the Explosives Loading Company killed 115 people and shattered windows in Southend-on-Sea across the Thames Estuary while the tremor was felt in Norwich.[2]

Oakdale, Pennsylvania61.36An Aetna Chemical Co. plant suffered an explosion of 3000lb of ammonium nitrate, while concentrating it in a pan by evaporation. The speculated cause was impurities within the nitric acid used to produce the ammonium nitrate. Six men were killed and eight injured. The shock wave was felt at a distance of 7miles.
Kriewald1930On July 26, 1921, in this railway town (now in Poland) workers tried to dislodge 30 tonnes of ammonium nitrate that had aggregated (solidified into one mass) in two wagons. When mining explosives were used on this solid mass the wagons exploded and killed nineteen people.
Oppau561450Explosion at BASF plant Oppau

Another attempt at disaggregation of a fertilizer mix with industrial explosives caused the death of 561 people and left more than 2,000 injured. The explosion happened at 7:32 a.m. The fertilizer was a 50:50 mixture of ammonium nitrate and ammonium sulfate and the factory had used this method of disaggregation over 20,000 times without incident. It is thought that, on this occasion, poor mixing had led to certain parts of the mass containing more ammonium nitrate than others. Only 450 tonnes exploded, out of 4500 tonnes of fertilizer stored in the warehouse.[3] [4]

Nixon, New Jersey
(now Edison Township)		2021924 Nixon Nitration Works disaster

On March 1, 1924, at 11:15 a.m., a fire and several large explosions destroyed a warehouse containing 4800lb of ammonium nitrate at the Nixon Nitration Works. The explosiveness of the product was perhaps enhanced, as it had been prepared using nitric acid that had previously been used for the production of TNT.

Muscle Shoals, Alabama0On April 4, 1925, and May 3, 1925, two carloads, each containing 220 barrels of ammonium nitrate, were dispatched from Muscle Shoals, Alabama, and caught fire in transportation. The barrels had been stored in a warehouse with varying humidity for 6 years, so it is believed that they were ignited by friction with their nitrate-impregnated manila paper lining. Other shipments were reportedly more successful.[5]
Miramas0240240 tonnes of ammonium nitrate in sacks exploded after being hit by a shell from a nearby fire in a munitions train.[6]
Tessenderlo189150An attempt to disaggregate a pile of 150 tonnes of ammonium nitrate with industrial explosives killed 189 people and wounded another 900.[7]
Texas City5812,086 +870Texas City disaster

The cargo ship Grandcamp was being loaded on April 16, 1947, when a fire was detected in the hold: at this point, 2,300 tons of ammonium nitrate in sacks were already aboard.[8] The captain responded by closing the hold and pumping in pressurised steam. At 9:12, the ship exploded, killing several hundred people and setting fire to another vessel, the High Flyer, which was moored 250 metres away and which contained 1,050 tonnes of sulfur and 960 tons of ammonium nitrate. The Grandcamp explosion also created a powerful earthshock that broke windows as far as 40miles away and knocked two small planes flying at 1500feet out of the sky. The High Flyer exploded the next day, after having burned for sixteen hours. 500 tonnes of ammonium nitrate on the quayside also burned, but without exploding, probably because it was less tightly packed. All but one member of the Texas City fire department died.

Brest291,700-3,309The Norwegian cargo ship Ocean Liberty was loaded with 3,309 tonnes of ammonium nitrate and various flammable products when it caught fire at 12:30 July 28, 1947. The captain ordered the hold to be sealed and pressurised steam was pumped in. As this did not stop the fire, the vessel was towed out of the harbour at 14:00, and exploded at 17:00. The explosion caused 29 deaths and serious damage to the port of Brest.[9] [10]
Presque Isle, Maine0217An A.W. Higgins Company plant was destroyed by a spontaneous heating in a pile of mixed fertilizer. Stored in the plant were 240 tons of ammonium nitrate.
St. Stephen, New Brunswick0360The Summers Fertilizer Company plant suffered a fire, causing 400 tons of stored ammonium nitrate to be consumed by fire. There was no explosion.
-Red Sea0A fire was detected on the Finnish cargo ship Tirrenia on January 23, 1953, while it was carrying ammonium nitrate. Attempts to extinguish the fire with steam were unsuccessful, and the ship was abandoned before it exploded later in the night.[11]
Roseburg, Oregon144.1The Roseburg Blast

A truck carrying dynamite and 4.5 tons of ammonium nitrate caught fire early in the morning of August 7, 1959. The explosion happened at 1:14 a.m. and killed 14 people and injured 125 more. Several blocks of downtown Roseburg were destroyed. The accident is locally referred to as "The Blast".[12]

Traskwood, Arkansas0140-180On December 17, 1960, a 96 freight car train suffered partial derailment, in which the last 23 cars were derailed. The derailed cars included: four fuel oil tank cars, two tank cars of gasoline, three tank cars of petroleum oil, four cars of lube oil drums, three cars of liquid fertilizer, one car of fuming nitric acid and two cars of fertilizer grade ammonium nitrate. In this particular accident, neither car of ammonium nitrate exploded.[13] However, the nitric acid reacted with the fuel oil, possibly creating nitrated aromatic compounds, whose explosion resulted in the spread of the ammonium nitrate material around the incident site.[14]
Oulu1010On January 9, 1963, an explosion at the Typpi Oy industrial site in the Takalaanila neighborhood of Oulu killed ten people. The accident happened past midnight, at 12:54 AM. The blast shattered hundreds of windows in the city center, over two kilometers away, and hurled bricks and chunks of concrete several kilometers away. The blast was heard away, and registered by the seismographs at the Sodankylä geophysical observatory, over away.[15] The cause of the explosion was the ignition of ammonium nitrate used as raw material for fertilizer and explosives.
Taroom, Queensland312In the 1972 Taroom explosion, a truck carrying 12 tons of ammonium nitrate experienced an electrical fault and caught fire north of Taroom, Queensland. After the driver stopped and parked the burning truck, two brothers from a nearby cattle property who saw the fire rode up on motorbikes to assist. The three men were killed when the truck exploded at around 18:15. The explosion burnt out more than 2000order=flipNaNorder=flip of surrounding bushland, and left a deep crater where the truck had been parked. A memorial to the three men was unveiled at the accident site in 2013.[16] [17] [18] [19]
Kansas City, Missouri623 (ANFO)On November 29, 1988, at 4:07 AM two trailers containing approximately 50000abbr=onNaNabbr=on of the explosive ANFO (ammonium nitrate with fuel oil) exploded at a construction site located near the 87th street exit of Highway 71 in Kansas City, Missouri. The explosives were to be used in the blasting of rock while constructing Highway 71. The result of the explosions were the deaths of six firemen from the Kansas City Fire Department's Pumper Companies 30 and 41. Both companies were dispatched after 911 calls indicated that a pickup truck located near the trailers had been set on fire. The responding companies were warned that there were explosives on-site; however, they were unaware that the trailers were essentially magazines filled with explosives. At 4:07 AM one of the "magazines" caught fire and a catastrophic explosion occurred, killing all six firemen instantly — only sparing remains were found. A second blast occurred 40 minutes later, although all fire crews had been pulled back at this time. The blasts created two craters, each approximately 100feet wide and 8feet deep. The explosions also shattered windows within a 10adj=onNaNadj=on area and could be heard 40miles away. It was later determined that the explosions were acts of arson, set by individuals embroiled in a labor dispute with the construction company contracted to build the highway.[20] [21]
Porgera Gold Mine1180 (ANE)At 9:45 am, 2 August 1994, 11 workers were killed when the sensitised AN emulsion plant they were working on exploded at the Porgera Gold Mine. The fatal explosion involved at most a few tonnes of explosive. A larger explosion of about 80 tonnes of ammonium nitrate emulsion, ANE, an emulsion of ammonium nitrate, fuel and water, UN 3375) was caused by fires under storage facilities at the site at 11:02 AM. There were no fatalities in the second explosion because the site had been evacuated. A mushroom cloud was seen to rise.[22]
Port Neal, Iowa4Port Neal fertilizer plant explosion

At about 6:06 AM on December 13, 1994, two explosions rocked the Port Neal, Iowa, ammonium nitrate processing plant operated by Terra Industries. Four people were killed and 18 injured. Approximately 5,700 tons of anhydrous ammonia were released and releases of ammonia continued for six days after the explosions. Groundwater under the processing plant was contaminated by chemicals released as a result of the blast. The timing of the explosion occurred prior to the start of the arrival of the 8:00 AM shift personnel, or the death toll might have been larger.[23] [24]

ChinaXingping, Shaanxi2227.6At 23:03 on January 6, 1998, the Xinghua Fertilizer company had a series of explosions in the plant. About 27.6 tons of ammonium nitrate liquor was in a container there. The explosion claimed 22 lives, with a further 56 wounded. The explosion was officially announced as an accident.[25]
ChinaShijiazhuang, Hebei1082001 Shijiazhuang bombings

A man motivated by hatred of his ex-wife and her family detonated ammonium nitrate bombs at four locations across Shijiazhuang, killing 108 people and injuring 38 others.[26]

ChinaYan'an, Shaanxi89+30+Mafang Village explosion

On July 16, 2001, an embittered villager ignited ammonium nitrate explosives in a rival's warehouse. The explosion leveled much of the village and killed at least 89 people, and injured 98 others.[27]

Toulouse31200-300AZF

On September 21, 2001, at 10:15 AM, in the AZF (Azote de France) fertiliser factory in Toulouse, France, an explosion occurred in a warehouse where the off-specification granular AN was stored flat, separated by partitions. About 200–300 tonnes were said to be involved in the explosion, resulting in 31 people dead and 2,442 injured, 34 of them seriously. The blast wave shattered windows up to away, and the resulting crater was 7 m deep and 60 m wide. The exact cause remains unknown. The material damage was estimated at 2.3 billion euros. France's Environment Minister initially suggested the explosion "may have been a terrorist attack" as it occurred soon after the September 11 attacks and one deceased worker may have had militant views.|-||Cartagena, Murcia||0||The fertilizer storage facility of Fertiberia held a self-sustained decomposition (SSD) fire in January 2003. The fire was controlled after most of the material was removed by mechanical means.|-||Saint-Romain-en-Jarez||0|3-5|A fire broke out in Saint-Romain-en-Jarez (Loire) in a barn, which at the time of the accident contained a gasoline-powered forklift, a battery charger, two 13-kg gas bottles, miscellaneous farm machinery, 500 kg of quicklime, 500 wooden crates, 6,000 to 7,000 plastic crates, and between 3 and 5 tonnes of ammonium nitrate packaged in big bags. Bales of hay and straw were being stored on the mezzanine and ≈500 kg apples kept in the cold storage rooms. The fire started around 3 PM, and fire-fighters were notified of the blaze at 4:02 PM. They arrived on the scene at 4:23 and started to extinguish the fire. At 5:12 PM the explosion occurred. Twenty-six people were injured from the blast, most of them fire-fighters.[28] |-||Barracas||2|25|A truck carrying 25 tonnes of ammonium nitrate fertilizer exploded half an hour after a traffic accident on March 9, 2004 at 12:45, killing two people and injuring five others. The explosion, which could be heard at a distance of several kilometers caused a crater five metres deep.[29] |-||Mihăileşti, Buzău||18|20|Mihăileşti explosion: A truck carrying 20 tonnes of ammonium nitrate tipped over on the European road E85 near Mihăileşti at 4:57 AM on May 24, 2004. Shortly afterwards, a fire started in the cabin. Two reporters got to the site of the accident and started filming while firemen were trying to stop the fire. Around 5:50 AM the truck exploded, killing 18 and wounding 13 people. A crater 6.5 meters deep and 42 meters in diameter was formed by the explosion.|-||Ryongchŏn||162||Ryongchon disaster: A freight train carrying ammonium nitrate exploded in this important railway town near the Chinese border on April 22, 2004 at around 13:00, killing 162 people and injuring over 3,000 others. The train station was destroyed, as were most buildings within 500 metres, and nearly 8,000 homes were destroyed or damaged. Two craters of about ten metres in depth were seen at the site of the explosion. The authorities blamed "human error" for the explosion, although rumours persist that it was in fact an attempt to assassinate the North Korean leader Kim Jong-il, who was due to be passing through the station at the time.|-||Estaca de Bares||0|400|The NPK fertilizer cargo of the ship Ostedijk sustained a self-sustained decomposition (SSD) fire for 11 days. The ship carried a total of 6012 tonnes of NPK. Cargo hold 2, where the decomposition occurred, contained 2627 tonnes of fertilizer. NPK fertilizer contains about 15% ammonium nitrate. The fire plume reached 10 m in diameter and several hundred meters in length. Special water spears were inserted inside the cargo to extinguish the fire.

|-||Monclova, Coahuila||28|22 (ANFO)|On September 9, 2007, at around 20:00, near Monclova, Coahuila, México, a pickup truck lost control and crashed into a trailer loaded with 22 tons of ammonium nitrate and fuel oil explosives (ANFO) leaving three occupants in the pick-up truck dead in the crash. A fire then started in the trailer's cabin and at around 20:43, a huge explosion occurred, resulting in 28 deaths and around 150 more people injured. A crater 30feet wide and 6abbr=onNaNabbr=on deep was created due to the explosion.[30] [31]

|-||Bryan, Texas||0||A plant in Bryan, Texas (El Dorado Chemical Company), which processes ammonium nitrate into fertilizer, caught fire at about 11:40 AM on July 30, 2009. Over 80,000 residents in the Bryan/College Station area were asked to evacuate south of town due to the toxic fumes this fire generated. Texas A&M University provided shelter at Reed Arena, a local venue on campus. Only minor injuries were reported.[32] [33]

|-||Oslo, Norway||8||2011 Norway attacks: A government building was bombed with a truck carrying ammonium nitrate by terrorist Anders Behring Breivik, killing 8 people and injuring 210+ people before opening fire at a summer camp at Utøya, killing 67 and injuring 32 before being arrested. In all 77 people were killed, including two indirectly, and 320 people were injured all together in the attacks.

|-||West, Texas||15|240|West Fertilizer Company explosion: A fertilizer company in West, Texas, caught fire. At around 19:50, ammonium nitrate stored there exploded, leveling roughly 80 homes and a middle school. 133 residents of a nearby nursing home were trapped in the ruins. In all, 15 were killed, and about 200 injured. There were reports that the facility had stored more ammonium nitrate than it was allowed to, without regulation by the Department of Homeland Security.[34] [35]

|-||Wyandra, Queensland||0|56|A truck carrying 56 tonnes rolled on a rural road, exploding shortly after the driver was rescued. There were two explosions, at 22:11 and 22:12, and they were heard away with debris being thrown, it totally destroyed a highway bridge. The driver and six firemen were injured.[36] [37]

|-| China|Port of Tianjin||173|800|2015 Tianjin explosions: Nitrocellulose stored at a hazardous goods warehouse spontaneously combusted after becoming overly hot and dry, resulting in a fire that 40 minutes later, at around 23:30, triggered the detonation of about 800 tonnes of ammonium nitrate stored nearby. 110 emergency personnel and 55 residents and employees were killed, while eight are missing. 798 people were injured.[38] There was extensive damage to structures and goods at the port, damage to surrounding apartment blocks, and severe damage to a railway station. On August 15, 2015, there were again 8 consecutive explosions, at around 23:40.

|-||Beirut||218|2,750|2020 Beirut explosion: On August 4, a major fire broke out in a Port of Beirut warehouse and spread to 2,750 tonnes of ammonium nitrate which had been impounded and stored for six years after it was seized from an abandoned ship in 2014.[39] [40] The explosion happened at 18:10, causing immense damage throughout the entire city from the shock wave that was reportedly so intense it was felt in Cyprus, an island about 250km (160miles) north-west of Lebanon.[41] A giant orange cloud was seen following the detonation. As of August 20, 2020, there are at least 6500 confirmed injuries and over 200 confirmed deaths.[42] [43] According to Beirut's city governor, up to 300,000 people have lost their homes. The yield of the explosion in terms of TNT equivalent mass was estimated to be 0.5 kilotons as a "best estimate" and 1.12 kilotons as a "reasonable upper bound estimate", a study from the Blast and Impact Research Group at the University of Sheffield shows.[44]

|-||Winston-Salem, North Carolina||0||A fire which began January 31, 2022 destroyed the Winston Weaver Company fertilizer plant in Winston-Salem, North Carolina. An hour after firefighters arrived it was determined a railroad car near the building contained 82 tonnes of ammonium nitrate, and after studying the West Fertilizer Company explosion, those in charge learned from plant officials that more than 450 tonnes of ammonium nitrate were stored in the plant. Firefighters were evacuated and for a 1miles radius around the plant, residents were asked to leave[45] because city fire chief Trey Mayo feared "one of the worst explosions in U.S. history". Residents were able to return home February 3, though a mandatory evacuation was considered. By February 7, investigators could enter the plant.[46] |}

See also

References

Notes and References

  1. Book: Scott. George Stanley. Ammonium Nitrate: Its Properties and Fire and Explosion Hazards. Grant. R. L.. 1948. U.S. Department of the Interior, Bureau of Mines. en.
  2. News: Tales of horror and heroism after the great explosion. Faversham Times. Faversham. March 29, 2012. 8. ProQuest document ID 957148980.
  3. News: Explosion in a nitrogenous fertiliser plant 21 September 1921 . French Ministry of Environment . March 2008 . 5 . April 18, 2013 . dead . https://web.archive.org/web/20130425002155/http://www.aria.developpement-durable.gouv.fr/ressources/14373_gb.pdf . April 25, 2013 .
  4. http://www.aria.developpement-durable.gouv.fr/ressources/14373_gb.pdf French Ministry of Environment, Explosion in a nitrogenous fertiliser plant (at this time BASF was occupied by French authorities
  5. C. E. Munroe . Destruction of Muscle Shoals Ammonium Nitrate by Fire and Explosion . 10.1021/ie50188a015 . Industrial & Engineering Chemistry. 1925 . 17 . 8 . 819.
  6. http://miramasloupedassa.blogspot.de/2009/08/souvenirs-de-loccupation.html Miramas 1940
  7. https://web.archive.org/web/20081115121518/http://www.tessenderlo.com/tessenderlo_group/company/history/ Tessenderlo Group
  8. Web site: Texas City, Texas, Disaster. Texas City Firefighters Local 1259. April 29, 1947. January 16, 2017. https://web.archive.org/web/20161209002821/http://www.local1259iaff.org/report.htm. December 9, 2016. live.
  9. Société Française de Chimie, Explosions Following A Fire: Major Catastrophies
  10. News: Le Télégramme. En 1947, le nitrate d'ammonium impliqué dans une explosion meurtrière au port de Brest. 5 Aug 2020.
  11. Middleton, Ned, Miscellaneous Shipwrecks of the Red Sea Not Found in Egyptian Waters
  12. Web site: 1959 Blast City of Roseburg. 2020-08-05. www.cityofroseburg.org.
  13. Some Major Hazards in Government-Sponsored Activities, NASA, 1964 Some Major Hazards in Government-Sponsored Activities
  14. Web site: The French Chemical Society . Explosions Following a Fire . 2011-06-20 . 2020-08-13 . https://web.archive.org/web/20200813043203/http://www.societechimiquedefrance.fr/extras/Guiochon%20VO/exincendieVO.htm . dead .
  15. News: Sankala . Kari . January 9, 1999 . Typpi räjähti lähtemättömästi oululaisten mieliin. . fi . Kaleva . . August 11, 2020.
  16. http://trove.nla.gov.au/newspaper/article/102002031 Three die in chemical blast
  17. http://trove.nla.gov.au/newspaper/article/102002265 Fire blamed
  18. http://blogs.abc.net.au/queensland/2013/04/truck-explosion-memorial-unveiled.html Truck explosion memorial unveiled
  19. http://www.centraltelegraph.com.au/news/enduring-tribute-binds-community/1817592 Enduring tribute binds community
  20. News: Mike McGraw . New Questions In Deadly Blast . Kansas City Star . February 18, 2007 . dead . https://web.archive.org/web/20081012074337/http://www.kansascity.com/581/story/38883.html . October 12, 2008 .
  21. https://www.gendisasters.com/missouri/6535/kansas-city-mo-ammonium-nitrate-explosion-nov-1988 Police Seek Clues In KC Blast
  22. Inquiry Report Department of Mining and Petroleum, Government of Papua New Guinea 1994
  23. http://www.epa.gov/oem/publications.htm#investigation EPA Chemical Accident Investigation Report Terra Industries, Inc., Nitrogen Fertilizer Facility, Port Neal, Iowa
  24. Exponent Engineering & Scientific Consulting Process Plant Explosion
  25. Web site: In Chinese . 2013-04-18 . https://web.archive.org/web/20130425002155/http://www.chinabaike.com/z/aq/hg/266152.html . 2013-04-25 . dead .
  26. News: Bomber has confessed, China says . . March 27, 2001 . January 30, 2024 . Tang . Rose . https://web.archive.org/web/20110708171054/http://premium.europe.cnn.com/2001/WORLD/asiapcf/east/03/27/china.bomber.confess/index.html . 8 July 2011 . dead.
  27. Web site: 陕西爆炸案：男子因生意失败，为报复对手引爆30吨炸药，炸死89人 . . Chinese . January 29, 2024 . January 29, 2024 . https://web.archive.org/web/20240129140334/https://k.sina.cn/article_2781433635_a5c94f2300100y4kb.html . live.
  28. Web site: Fire inside a barn and explosion of fertiliser 2 October 2003 Saint Romain-en-Jarez (Loire) France . 4 March 2014.
  29. News: Un camión lleno de nitrato estalla tras un choque y causa dos muertos en Castelló . María Fabra . . 10 March 2004 . 17 April 2013 . es . https://web.archive.org/web/20130425002200/http://elpais.com/diario/2004/03/10/espana/1078873233_850215.html . 25 April 2013 . live .
  30. Web site: Internal report into the mexican explosion data. .
  31. News: McKinley . James C. . Truck Explosion in Mexico Kills 37 . The New York Times . September 10, 2007 . March 3, 2013.
  32. News: Evacuation Lifted, Fire at Texas Chemical Plant Under Control . Fox News . July 30, 2009.
  33. Web site: El Dorado Chemical Company goes up in smoke!. 2009-08-03.
  34. Web site: West, Texas, Fertilizer Plant Explosion: Some Residents Allowed to Return Home . . 2020-06-27 . https://web.archive.org/web/20200110195137/https://abcnews.go.com/US/west-texas-fertilizer-plant-explosion-residents-allowed-return/story?id=19006786#.UXM290rNnTo . 2020-01-10 . live .
  35. News: Texas Fertilizer Plant Kept Quiet About Huge Stores Of Explosive Substance . Huffington Post . April 20, 2013.
  36. Web site: Government launches lawsuit over 2014 truck explosion. 10 January 2019 .
  37. News: Truck explosion injures eight, closes Mitchell Highway . Brisbane Times . September 6, 2014.
  38. Web site: Tianjin Port Accident Investigation Report. The State Council of the People’s Republic of China. 22 March 2016. zh. 5 February 2016.
  39. News: Urbina. Ian. 2 September 2020. The Disturbing Story Behind the Beirut Port Explosion. The Nation.
  40. Web site: Mia. Jankowicz. 2,750 tons of ammonium nitrate was impounded in Beirut's port after it was seized from an abandoned ship in 2014, years before the explosion. Business Insider. August 5, 2020. en. August 5, 2020.
  41. Web site: Mia. Alberti. The blast was felt 240 kilometres away from Lebanon. CNN. August 5, 2020. en. August 4, 2020.
  42. Web site: Mersiha. Gadzo. Beirut explosion death toll rises to 135 as 5,000 wounded: Live. Al Jazeera. 5 August 2020. en. 4 August 2020. https://web.archive.org/web/20200804210957/https://www.aljazeera.com/news/2020/08/huge-explosion-rocks-lebanon-capital-beirut-live-updates-200804163620414.html. 4 August 2020. live.
  43. Web site: Chulov. Martin. Safi. Michael. Borger. Julian. Lebanon: at least 78 killed as huge explosion rocks Beirut. . 4 August 2020. 5 August 2020.
  44. Rigby. S. E.. Lodge. T. J.. Alotaibi. S.. Barr. A. D.. Clarke. S. D.. Langdon. G. S.. Tyas. A.. 2020-09-22. Preliminary yield estimation of the 2020 Beirut explosion using video footage from social media. Shock Waves. 30. 6. 671–675. en. 10.1007/s00193-020-00970-z. 2020ShWav..30..671R . 1432-2153. free.
  45. News: Winston-Salem Fire Chief: Investigators believe they know where fertilizer plant fire started, but determining cause will take time . Young . Wes . . February 9, 2022.
  46. News: Fire investigators begin work in Winston-Salem fertilizer plant ruins . Young . Wes . Winston-Salem Journal . February 7, 2022.

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