One common effect was death.
nerve agents
Chemical warfare had a devastating impact in World War 1, causing widespread casualties and long-term health effects on soldiers and civilians. It led to the development of gas masks and other protective equipment, as well as the Geneva Protocol prohibiting the use of chemical and biological weapons in warfare.
The use of chemical weapons has been banned by international treaty, but that does not prevent some countries from using it, particularly on their own people in an attempt to control their populations. There has also been discussion as to what chemical warfare is. Some include the use of tear gas as chemical warfare, while most just consider it as a useful crowd control device without lasting effects.
Julian Perry Robinson has written: 'Public Health Response to Biological and Chemical Weapons' 'The effects of weapons on ecosystems' -- subject(s): Biological warfare, Chemical warfare, Environmental aspects, Environmental aspects of Biological warfare, Environmental aspects of Chemical warfare, Environmental aspects of Military weapons, Environmental aspects of Nuclear weapons, Environmental aspects of War, Military weapons, Nuclear weapons, War 'The United States binary nerve-gas programme' -- subject(s): Asphyxiating and poisonous Gases, Chemical weapons, Military policy, War use 'Chemical and biological warfare developments, 1985' -- subject(s): Biological warfare, Chemical warfare
Bio warfare is living creatures; if a contaminated mosquito was delivered to the enemy that would be bio warfare. Chemical warfare is just what it says: chemicals.
The Library of Congress provides several sources of information on chemical and biological warfare. The US National Library of Medicine also has a variety of information on this topic.
trench warfare chemical warfare
The definition of the term 'chemical warfare' is warfare where one side uses chemical weapons to kill or injure those on the other sides. It is a controversial weapon and condemned by the UN.
Warfare using mustard gas and chlorine gas.
John Cookson has written: 'A survey of chemical and biological warfare' -- subject(s): Biological warfare, Chemical warfare 'Using Unix'
Nitrogen oxide is not typically considered a chemical agent in the context of warfare or chemical weapons. However, it can have harmful effects on health and the environment when present in high concentrations, such as contributing to air pollution and smog.
What do you mean by related? Is it about chemical warfare? No. Is there some underlying theme about chemical warfare that is played out via symbolism in the story? I don't see how. Maybe read it and find out? it's good!