The phrase "chemical threats" refers to any potential danger or harm that may result from the use, production, or storage of chemicals. Full definition
That is the hope of Countermeasures Against Chemical Threats (CounterACT) project that is part of an initiative at the National Institutes of Health aimed at developing improved antidotes for chemical agents. (sciencedaily.com)
Judge finds man accused of chemical threat and caught in Ottawa hotel not guilty, Canadian Press (canadianlawyermag.com)
She's also the manager of the International Chemical Threat Reduction Department at Sandia National Labs. (scientificamerican.com)