Chemical weapons would influence health, even pollute environment that hurt innocent people and offspring. Because of its mechanism, organophosphate nerve agent would contribute to headache, vision deterioration, and so on. The most serious symptom is respiratory failure which is fatal. The organic phosphate nerve agent will remain in the environment and travel into the subterranean water, rivers, and soil. People living in that environment would undergo pathological changes, and even give birth to deformed children. Chemical weapons are so toxic that have negative influences on human and environment.

       These effects also happened in human history, and the most famous events among these effects are Vietnam War and Tokyo Subway Sarin attack.