“ | Chlorine. (...) Massive amounts can be produced with very little effort, very little expensive resources. The gas - it chemically bonds itself to the moisture inside the body, triggering severe bronchial spasms. Your lungs overproduce fluid, causing you to choke, until essentially, you drown from the inside out.
―Dr. Leo Bennett explaining the gas' effects.[src]
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Chlorine Gas is a chemical weapon used by the Civic Republic Military. It was created by Drs. Lyla Belshaw and Samuel Abbott.
Overview[]
Chlorine gas has a yellow-green color to it. A variant, created by Dr. Lyla Belshaw, has a darker green color to it - created from experimenting on using an intra-cerebral injection of algae-derived chemical extracts. Her variant showed promise in delaying the time between death and reanimation.
According to Dr. Leo Bennett, massive amounts of the gas can be produced with very little effort and expensive resources, and it works by chemically bonding itself to the moisture inside the body, triggering severe bronchial spasms. This results in the victim's lungs overproducing fluid, causing them to choke and essentially drown from the inside out.
While Michonne and Nat are able to survive by quickly covering their faces and getting out of the cloud of poison gas, the damage that it does to them "burned out" Michonne and Nat's lungs and throat. Even with the help of oxygen tanks, it takes the two a year to recover enough to move from the abandoned mall where they had taken cover and a long time to regain any of their strength during their recovery.
The amount of gas stored at Civic Republic Cull Facility 1 had a minimum safe distance of at least 3 miles and released a large mushroom cloud upon its detonation. However, chlorine gas breaks up fast. Rick and Michonne were able to shield themselves from the gas' effects by initially covering themselves with a wet flag and then, as the gas began to break up, moving around with wet cloths over their mouths until the couple could get their hands on gas masks.
Pre-Apocalypse[]
Chlorine gas was used as a chemical weapon in World War I, first by Germany, and then by both sides of the war. It was later replaced by the more deadly phosgene and mustard gas.
As a kid, Nat read about chlorine gas and dreamed about dropping it on the football team.
Post-Apocalypse[]
World Beyond[]
Ten years after the outbreak, the Civic Republic Military decides to wipe out the other members of the Alliance of the Three. Drs. Lyla Belshaw and Samuel Abbott develop a variant of chlorine gas as part of their experiments which will kill the targets, but also, hopefully, help to inhibit the reanimation process due to what they have added to the mixture. Using the gas, the CRM wipes out both Omaha and the Campus Colony in just a matter of a couple of days, covering it up by luring a massive herd to both locations. Jadis later reveals that the CRM had used the information gathered by Huck in her two year observe and report mission to carry out the attack. The information reveals to the CRM that the population would be gathered in the plazas and parks to celebrate Monument Day, rendering them vulnerable to a single chemical strike with the gas.
While investigating the CRM's connection to the genocide, Huck discovers copies of coded transmissions in her mother's safe that Dr. Leo Bennett decodes to be discussing a large-scale chemical attack on the two communities. With the help of Huck, Felix Carlucci breaks into the cold storage unit in the Civic Republic Research Facility where he steals a vial of the gas' variant and discovers a large number of canisters containing even more of the gas. Testing the contents of the vial, Leo discovers the gas' nature and the Endlings realize the truth about what happened to the Campus Colony and Omaha. Lyla later reveals the truth about her involvement in exchange for the vial's return.
At the time of the investigation into the gas, Lyla uses her newest variant on Barca, killing him and stopping his reanimation for nearly eight hours. However, while Lyla sees this as an achievement, Jadis points out that it's not unheard of for reanimation to take that long.
After Huck complies with her orders to use the zombified Barca to kill Lyla, Jadis reveals to her that the CRM intends to use their store of the gas for a third attack, one aimed at wiping out Portland and the 87,000 survivors there. Huck passes this information along to the other Endlings through Percy and informs her husband Dennis Graham of the CRM's actions, successfully seeking out his help to stop them.
Leo later provides evidence of the CRM's genocide to the other research scientists who agree to abandon the CRM with Leo, his family and their friends. The Endlings begin putting into motion a plan that will not only allow everyone to escape the research facility, but that will destroy the CRM's store of chlorine gas which is going to be used to wipe out Portland soon, leaving the group no way to warn them in time.
After engineering an escape for the scientists, Hope and Felix attempt to blow up the gas with C4 only to discover that Jadis has anticipated this and has secretly moved the gas elsewhere. Jadis later contacts Major General Beale and convinces him to move up the gas attack on Portland. While the Endlings are left despondent over their failure to destroy the gas, they are contacted by Huck asking if they still have the C4 as she has inadvertently stumbled across the gas' new hiding place: the North Pads of Civic Republic Cull Facility 1.
The Endlings fight their way back to the culling facility where they provide Huck with the C4. Huck then orders the others to get as far away as possible as the minimum safe distance for the gas is at least 3 miles. However, the radio jamming that Jadis has ordered put into effect in the area also blocks the remote detonator, so Huck sends Dennis and Silas to retrieve equipment to create a timer from Dennis' secret weapons' cache a few miles away. Having learned that the C4 used earlier by the Endlings had come from the culling facility, Jadis rushes there with several guards in order to protect the gas. After a fight with Huck, Jadis mortally wounds the other woman, but Huck reveals that she has already secretly wired up her father's watch as a makeshift detonator. Jadis and her men flee in their helicopter just before the C4 detonates, destroying the chlorine gas in a massive chemical explosion. Due to Huck sending them away beforehand, Dennis and Silas survive while Indira and Asha provide Hope, Iris and Elton, who had not yet gotten far enough away, with gas masks.
The Ones Who Live[]
Following the destruction of the gas by the Endlings, the CRM created more within months, echoing Leo's statement that massive amounts of the gas can be created quickly and with very few expensive resources. In addition, despite Dr. Lyla Belshaw's death, the CRM appears to have successfully recreated her variant of the gas which gives the gas a green color.
A CRM helicopter bombs Nat's Group with chlorine gas, quickly killing most of the members who reanimate. Michonne, Aiden, Bailey, Nat and a few others manage to take cover in Havenshed Mall, but dozens of people die in the gas attack and Aiden succumbs shortly thereafter and reanimates, killing a sleeping Bailey while the other five who had made it to safety succumb as well. Although Michonne and Nat survive, their lungs and throats are "burned out" by the gas and they take a year to recover in the mall, using oxygen tanks recovered from a nearby medical plaza to help them breathe. After a lengthy recovery, both eventually regain their strength and are able to continue with their journey.
The gas attack continues to haunt Michonne afterwards, particularly as she witnessed the cruelty of the CRM and her year-long recovery cost Michonne a year with her kids.
As a part of the Echelon Briefing, Major General Beale reveals to Rick Grimes the truth about the destruction of Omaha and the Campus Colony along with the fact that the CRM intends to use the chlorine gas to wipe out Portland the next day. A horrified Michonne learns from a briefing for the Frontliners that the CRM intends to evacuate selected children from the city before gassing it to kill everyone else. Once Portland is destroyed, Beale intends to use it to declare martial law over the Civic Republic and then lead the CRM in a campaign to wipe out other survivors and communities in order to scavenge their resources to ensure the Civic Republic's survival.
After learning the truth, Rick kills Beale and he and Michonne decide to destroy the gas to prevent its use. Taking inspiration from Nat, Rick and Michonne rig a crateful of grenades to the cannisters of chlorine gas with a zombified Beale and a Frontliner acting as makeshift fuses. The makeshift bomb detonates in a huge explosion, releasing the gas and consuming the Frontliners and the CRM Force Command who were gathering on the tarmac in front of the tent containing the arsenal for a briefing on the CRM's plans. Any CRM soldier who survives the explosion falls victim to the chlorine gas while Rick and Michonne shelter under a wet flag, waiting for the gas to break up, before getting their hands on gas masks and escaping.
Afterwards, Rick and Michonne expose the CRM's atrocities to the Civic Republic Council, including their use of chlorine gas to wipe out other survivors.
Killed Victims[]
The following is a list of victims killed with chlorine gas:
- Jan
- Dani
- Phoebe
- Adult Administrator
- Izzy
- Mr. Kapadia
- Marco Voci
- Dr. Bavolar
- Dwyer
- Kallenbach
- Campus Student 1
- Campus Student 2
- Campus Student 3
- Mrs. Plaskett
- Ruth
- Margaret
- Daniel
- Barca (Alive)
- Aiden (Alive)
- Aiden and Bailey's Unborn Child
- Bailey (Indirectly Caused, Alive)
- At least 9,651 Campus Colony residents
- 2 unnamed Portland representatives
- 2 unnamed Omaha representatives
- 97,399 Omaha residents
- All unnamed members of Nat's Group (Alive)
- 2,998 unnamed Frontliners (Alive)
- All unnamed members of CRM Force Command (Alive)
- Many horses
Firearms
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Handguns | Alfa 820 • AMT Automag II • Arsenal P-M01 • Benelli B76 • Beretta 21A Bobcat • Beretta 84 Cheetah • Beretta 92A1 • Beretta 92FS • Beretta 92FS Centurion Inox • Beretta 92FS Inox • Beretta 92SB Nickel • Beretta Cougar • Beretta Cougar Inox • Beretta M9A1 • Beretta Px4 Storm • Beretta Px4 Sub-Compact • Browning BDA • Browning Hi-Power • Bruni Olympic 6 • Captive Bolt Pistol • Charter Arms Bulldog • Colt 1851 Navy • Colt 1860 Army • Colt 1872 Open Top • Colt Commander • Colt Detective Special • Colt Gold Cup National Match • Colt Government Model • Colt MK IV Series 70 • Colt MK IV Series 80 • Colt Officer's ACP • Colt Official Police • Colt Police Positive • Colt Python • Colt Rail Gun • Colt Single Action Army • Colt Walker • CZ 52 • CZ 75 • CZ 82 • Desert Eagle • Desert Eagle Mark I • Flare Gun • Flintlock Pistol • FN Five-seveN • FN FNX-9 • Glock 17 • Glock 19 • Glock 26 • Glock 30 • Glock34 • Heckler & Koch HK 45 • Heckler & Koch Mark 23 • Heckler & Koch P7 • Heckler & Koch P9S • Heckler & Kock P2000 • Heckler & Kock USP • Heckler & Kock USP Compact • High Standard Double-Nine • Iver Johnson Derringer • Iver Johnson Revolver • Kahr K9 • Kimber Custom TLE II • Kimber Solo Carry • Kimber Warrior • Lepage Percussion Pistol • Luger Po8 • M1911A1 • MAC Mle 1950 • Mle 1892 Revolver • Nail Gun • Philadelphia Derringer • Remington 1875 • Remington 1911 • Rock Island Armory 1911 • Ruger GP100 • Riger Mk II • Ruger SP101 • Ruger Speed Six • SIG-Sauer GSR • SIG-Sauer P226 • SIG-Sauer P228 • SIG-Sauer P229 • SIG-Sauer P250 Compact • Smith & Wesson 41 • Smith & Wesson 3913 • Smith & Wesson 3913 "Ladysmith" • Smith & Wesson 5904 • Smith & Wesson 5906 • Smith & Wesson 6904 • Smith & Wesson M&P • Smith & Wesson Model 3 • Smith & Wesson Model 10 • Smith & Wesson Model 15 • Smith & Wesson Model 17-8 • Smith & Wesson Model 19 • Smith & Wesson Model 28 • Smith & Wesson Model 29 • Smith & Wesson Model 36 • Smith & Wesson Model 60 • Smith & Wesson Model 66-1 • Smith & Wesson Model 327 Performance Center M&P R8 • Smith & Wesson Model 442 • Smith & Wesson Model439 • Smith & Wesson Model 586 • Smith & Wesson Model 686 • Smith & Wesson Model 686 Snub • Smith & Wesson Model 686P • Smith & Wesson Sigma] • Smith & Wesson SW99 • Smith & Wesson SW1911 • Springfield Armory TRP • Springfield Armory XD • Springfield Armory XD-S • Start Model B • Taurus Model 82 • Taurus Model 85 • Taurus PT92AF • Taurus Ragining Judge Ultra-Lite • Walther CCP • Walther P22 • Walther P38 • Walther P99 • Walther PPK • Walther PPK/S • Webley .455 Mk VI • Webley "WG" Army Model • Webley No. 1 Mark 1 Flare Gun • Vektor CP1 |
Rifles | Accuracy International Arctic Warfare • Baretta M82A1M • Browning Automatic Rifle Safari • Browning X-Bolt • CZ 527 • Dan Inject Model JM • Flintlock Rifle • FN SCAR-H • Heckler & Koch G3 • Henry Classic Lever Action • Karabiner 98k • Lee-Enfield Mk.I • Lee-Enfield No. 1 Mk III* • M1 Carbine • M1 Garand • M110 SASS • M24 • Marlin Model 1893 • Marlin Model 1894 • Mendoza Puma • Mosin–Nagant • Mossberg MVP Predator • Mossberg Patriot • Musket • Pneumatic Rifle • Remington 700 BDL • Remington 700 PSS • Remington 700 VLS • Remington 7400 • Ruger 10/22 • Ruger Mini-14 • Savage 99 • Sharps Rifle Model 1874 • Sporterized Springfield M1903 • SKS • Spencer 1860 • Springfield 1973 "Trapdoor" Carbine • Steyr SSG 69 • Winchester Model 70 • Winchester Model 1866 "Yellow Boy" • Winchester Model 1973 |
Shotguns | 12 Gauge Double Barreled Shotgun • Benelli Black Eagle • Benelli M2 Super 90 • Benelli M3 Super 90 • Benelli M4 Super 90 • Blunderbuss • Browning Auto-5 • FN SLP • Franchi SPAS-12 • Frolov Shotgun • Harrington & Richardson Pardner Pump Compact • Harrington & Richardson Pardner Pump Protector • High Standerd FLITE KING K-1200 Riot Shotgun • Ithaca 37 • Izhmash Saiga 12K • J.C. Higgins Model 20 • Kel-Tec KSG • Mossberg 500 • Mossberg 500 Cruiser • Mossberg 590 • Mossberg 590 Compact Cruiser • Mossberg HS12 • Over/Under Shotgun • Remington 870 • Remington 870 Wingmaster • Remington 1100 • Sawed-off Double Barrel Shotgun • Stevens 67 • UTAS UTS-15 • Winchester Model 1300 Defender • Winchester Model 1887 • Winchester Model 1897 |
Assault Rifles | AK-47 • AKM • AKMS • AKMSU • AKS-47 • AKS-74 • AKS-74U • AR-18 • Bushmaster ACR • Century Arms C39 V2 • Century Arms RAS47 • Colt AR-15A2 Government Carbine • Colt Law Enforcement Carbine • Colt Model 639 • Colt Model 727 • Colt XM177E2 • Daewoo Precision Industries K2 • DPMS Oracle AR-10 • FAMAS F1 • FN F2000 • FN FAL • FN FS2000 • FN SCAR-H • FN SCAR-L • FNH SCAR 17S • Heckler & Koch G3A3 • Heckler & Koch G36C • Heckler & Koch G36KV • Heckler & Koch HK 416 • Heckler & Koch HK 417 • HK-51 • IMI Galil AR • IWI Galil ACE • KR-103 • L85A2 • M4A1 • M4 Carbine • M14 Rifle • M16 Rifle • M16A1 Rifle • M16A2 Rifle • M16A4 Rifle • Maadi ARM • Micro Draco AK • Mk. 14 Mod 1 EBR • Mk. 18 Mod 0 • Norinco MAK-90 • Noveske N4 • Olympic Arms CAR-AR • Olympic Arms K4B • Romarm SAR-1 • Romy G AK-47 • Ruger Mini-14 GB • SIG-Sauer 516 • SIG-Sauer SIG556 • SIG SG 550 • Smith & Wesson M&P15 • Springfield M1A • Springfield M1A SOCOM 16 • Steyr AUG A1 • Steyr AUG A2 • Type 56 • Type 56-1 • Valmet M76 • WASR10/63 • WASR-10 UF • XM16E1 • Zastava M70AB2 • Zastava M70B1 |
Submachine Guns | AR-15 • AR-57 • Cobray M11/9 • CX4 Storm • CZ Scorpion 3 S1 • Daewoo Precision Industries K1 • FN P90 • German Sport Gun GSG5 Semi Auto Carbine • Heckler & Koch MP5A2 • Heckler & Koch MP5A3 • Heckler & Koch HK94A2 • Heckler & Koch HK94A3 • Heckler & Koch MP5K • Heckler & Koch MP5K-PDW • Heckler & Koch UMP • IMI Micro Uzi • IMI Mini Uzi • IMI Uzi • Intratec TEC-9• KRISS Vector • M1A1 Thompson • M3A1 "Grease Gun" • MAC-10 • MAC-11 • MP40 • PPS-43 • SIG-Sauer MPX • Sterling Mark 6 • Sten Mk II • Thompson M1928A1 • Umarez. 22 |
Machine Guns | Browning M1919 • Browning M2HB • DShK • KPVT • M249-E2 SAW • M60 • M60E3 • M230 Chain Gun • M240 • PKM |
Ranged Weapons | Airtronic RPG-7 • Bow and Arrow • Bowtech 101st Airborn • Cannon • Crossbow • DefTech 37mm Rotary Launcher • Horton Scout HD 125 • Hwacha • M136 AT4 • M72A2 LAW • PSE Fang 350 • Screamstick • Slingshot • Stryker Strykezone 380 |
Explosives | C4 • Chlorine Gas • CS Triple Chasers • Disruption Charges • Gun Powder Packs • F1 Hand Grenade • Firecrackers • Flares • Incendiary Bomb • M26 Hand Grenade • M67 Grenade • M84 Flashbang Grenade • MK2 Grenade • Model 24 Stielhandgranate • Model 7290 Flashbang Grenade • Molotov Cocktail • OF-15 Hand Grenade • Smoke Grenade • UGM-133 Trident II |
Signature Weapons | Alpha's Shotgun • Andrea's Ladysmith • Andrea's Rifle • Annie's Blowgun • Arthit's Matchlock • Boyd's Revolvers • Carol's Bow and Arrow • Carol's Revolver • Chemist's Gas Bombs • Dale's Rifle • Daryl's Crossbow • Dave's Pistol • Davie's Crossbow • Davie's Pistol • Diego's Hunting Rifle • Dwight's Crossbow • Georgia's Assault Rifle • Gunther's Auto Rifle • Hailey's Slingshot • Hershel's Shotgun • Jacki's Pistol • Jeff's Bow • Joe's Revolvers • John's Revolvers • Kate's Paintball Gun • Kate's Sniper Rifle • Kyle's Pistol • Lady Z's Pistol • Maggie's Machine Gun • Marlon's Bow • Morgan's Rifle • Mr. Jones' Shotgun • Nia's Tranqualizer Rifle • Nick's Revolver • Peacekeeper's Gatling Gun • Princess' Machine Gun • Priya's Mini Gun • Rick's Colt Python • Rosy's Rivet Gun • Roxie's Assault Rifle • Sebastian's Pistol • Shane's Shotgun • Stefan's Sniper Revolver • The Trader's Grenade Launcher • The Trader's SMG • Tiffany's Harpoon Gun • Tiffany's Tranqualizer Rifle • Tomas' Revolver • Yumiko's Crossbow • Zoey's Rifle • Charlotte • Dragon Breath |