Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. ToxFAQs for Mustard Gas Questions and answers about mustard gas, which "refers to several manufactured chemicals, including sulfur mustard, that do not occur naturally in the environment." Discusses its use in chemical warfare, current risks for exposure, health risks (including respiratory cancer), effect on children, and related information. From the Agency for Toxic Substances and Disease Registry (ATSDR) of the Centers for Disease Control and Prevention (CDC). http://www.atsdr.cdc.gov/tfacts49.html Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *