Key Takeaways
- "Tear gas" is a category of lacrimatory agents, not a single chemical, primarily designed to irritate eyes, skin, and airways.
- Developed pre-World War I, it was marketed as a "non-lethal" crowd control tool to police after the war, despite being prohibited in warfare.
- Comprehensive research on its short-term and long-term health effects is lacking, but severe injuries and permanent damage are documented.
- Exposure causes immediate pain and inflammation, with discriminatory public health impacts and environmental contamination concerns.
- Medical professionals advocate for a ban on tear gas and advise immediate first aid steps like moving to fresh air and washing eyes for 15 minutes.
Deep Dive
- Tear gas use dates to pre-World War I, with large-scale deployment and refinement occurring during and after the war by French scientists.
- Post-WWI, the U.S. Chemical Warfare Service, led by General Amos Freese, marketed surplus chemical agents, including CS gas, to police departments.
- This was presented as a safer, "non-lethal" tool for crowd control, leading to its increased adoption by law enforcement during the 1930s labor movement.
- The 1932 Bonus Army march in Washington D.C. was forcibly dispersed by the U.S. military using tear gas, demonstrating its perceived effectiveness.
- Tear gas is a category of lacrimatory agents, including CS gas (synthesized by Corson & Stotten), CR gas, CN gas (Mace is a brand), and capsaicin-derived pepper spray.
- Substance T, another tear gas agent, is noted for its deceptively pleasant lilac smell.
- The use of tear gas by law enforcement in the U.S. raises questions about consistency, as chemical weapons are prohibited for offensive use in warfare under the Geneva Conventions.
- Domestically, tear gas is argued as a "less lethal" crowd control option compared to firearms, leading to its widespread adoption by police.
- A legal loophole permits its use for "public safety" or officer defense, resulting in varying deployment protocols across jurisdictions and agencies.
- Comprehensive research on the short-term and long-term health effects of tear gas is lacking, partly due to its dangerous nature.
- While intended to create a barrier, its direct firing into crowds or use indoors is problematic and can lead to severe injury.
- Documented short-term injuries include severe eye damage, keratitis, glaucoma, and cataracts, with risks of permanent optic nerve damage and respiratory illness.
- Vulnerable populations, such as the elderly and the very young, face increased risks from tear gas exposure.
- Physicians for Human Rights categorize tear gas as a weapon that induces widespread pain and inflammation beyond mere eye irritation.
- Its use has discriminatory public health impacts, disproportionately affecting vulnerable individuals and creating a "chilling effect" on the right to assembly.
- Environmental damage to soil, water, and plant life is a concern, with potential carcinogens like hexavalent chromium detected, and no standard cleanup protocols exist.
- In case of exposure, individuals should immediately move away from the source to breathable, higher ground; medical professionals recommend washing eyes with clean water for at least 15 minutes.