Exposure of Marigold (Tagetes) to Gaseous Hydrogen Chloride

摘要

The ascertain the extent of environmental pollution problems attendant with Air Force missile operations, mature flowering marigold plants were exposed to one of the known exhaust products, hydrogen chloride. All plants died after 5 min exposure to 2071 ppm the highest concentration used. At 95 ppm no effect was noted. Seeds obtained from the exposed plants did not appear to be affected by the HCl treatment. (Author)