Editing Arsenic (section)

=== Military ===

After [[World War I]], the United States built a stockpile of 20,000 tons of [[Chemical warfare|weaponized]] [[lewisite]] (ClCH=CHAsCl<sub>2</sub>), an [[organoarsenic]] [[vesicant]] (blister agent) and [[lung]] irritant. The stockpile was neutralized with [[Sodium hypochlorite|bleach]] and dumped into the [[Gulf of Mexico]] in the 1950s.<ref>{{cite web|url = http://library.thinkquest.org/05aug/00639/en/w_chemical_blister.html|publisher = Code Red – Weapons of Mass Destruction |title = Blister Agents|access-date = 2010-05-15 }}</ref> Lewisite, the chemical warfare agent, is known for its acute toxicity to aquatic organisms.  However, studies assessing the environmental impact of this disposal in the Gulf are lacking.<ref>{{Cite journal |last1=Czub |first1=Michał |last2=Nawała |first2=Jakub |last3=Popiel |first3=Stanisław |last4=Brzeziński |first4=Tomasz |last5=Maszczyk |first5=Piotr |last6=Sanderson |first6=Hans |last7=Maser |first7=Edmund |last8=Gordon |first8=Diana |last9=Dziedzic |first9=Daniel |last10=Dawidziuk |first10=Barbara |last11=Pijanowska |first11=Joanna |last12=Fabisiak |first12=Jacek |last13=Szubska |first13=Marta |last14=Lang |first14=Thomas |last15=Vanninen |first15=Paula |display-authors=6 |date=2021-01-01 |title=Acute aquatic toxicity of arsenic-based chemical warfare agents to Daphnia magna |url=https://www.sciencedirect.com/science/article/pii/S0166445X20304422 |journal=Aquatic Toxicology |volume=230 |pages=105693 |doi=10.1016/j.aquatox.2020.105693 |pmid=33310671 |bibcode=2021AqTox.23005693C |issn=0166-445X}}</ref> During the [[Vietnam War]], the United States used [[Agent Blue]], a mixture of [[sodium cacodylate]] and its acid form, as one of the [[rainbow herbicides]] to deprive North Vietnamese soldiers of foliage cover and rice.<ref>{{cite journal|doi = 10.1016/0006-3207(72)90043-2|title = Herbicides in war: Current status and future doubt|date = 1972|last1 = Westing|first1 = Arthur H.|journal = Biological Conservation|volume = 4|issue = 5|pages = 322–327| bibcode=1972BCons...4..322W }}</ref><ref>{{cite journal|last1 = Westing| first1 = Arthur H.|title =Forestry and the War in South Vietnam|journal = Journal of Forestry|volume = 69|pages = 777–783|date = 1971|url = http://www.ingentaconnect.com/content/saf/jof/1971/00000069/00000011/art00008}}</ref><!--https://books.google.com/books?id=agsAAAAAMBAJ&pg=PA37-->