User:Milton Beychok/Scratchpad
Safety concerns
There are several safety-related concerns with anhydrous ammonia and with aqueous solutions of ammonia. It is a respiratory irritant that, if released, is a hazard to life. Release could take place through simple industrial or transportation accident, by a deliberate release caused by terrorists, or by diversion and improper handling by those using it as an intermediate in the illegal synthesis of methamphetamines.
Storage tanks on farms used for dispensing ammonia as fertilizer are referred to as nurse tanks and contain approximately 2,500 pounds of anhydrous ammonia, so any farm with four or more nurse tanks needs to assess its safety. In fact, the U.S. Environmental Protection Agency (U.S. EPA) mandates the performance of an Offsite Consequence Analysis (OCA) as part of their Risk Management Plan (RMP) requirements for any facility that stores more than 10,000 pounds of anhydrous liquid ammonia or 20,000 pounds of aqueous solutions of ammonia.Cite error: Closing </ref> missing for <ref> tag
In transport, ammonia containers must have proper hazardous material placards, and, if the "trigger" quantitity is exceeded, may need additional safeguards, such as reporting the shipment to industry monitoring services such as CHEMTREC[1] or additional local agencies. There may be restrictions on transporting hazardous materials through tunnels, or possibly streets in high-density areas.
The U.S. Department of Homeland Security, citing its major concern as toxic release, lists anhydrous ammonia, or mixtures containing at least 1 percent ammonia, when stored in quantites of 10,000 pounds or more, as a chemical of interest,[2] which falls under the Risk for Chemical Facility Anti-Terrorism Standards (CFATS) regulations and guidance.[3] Organizations that store or transport more than the threshold quantity of 10,000 pounds, or believe they are at a higher than normal risk, should use the Chemical Security Assessment Tool. [4]
The Environmental Protection Agency has issued an additional safeguards document, with special emphasis on theft.[5]
References
- ↑ CHEMTREC: the 24-hour HAZMAT Communications Center
- ↑ U.S. Department of Homeland Security (November 20, 2007), 6 CFR Part 27 Appendix to Chemical Facility Anti-Terrorism Standards; Final Rule
- ↑ DHS Finalizes List of Chemicals Subject to Anti-terrorism Regs
- ↑ U.S. Department of Homeland Security, Chemical Security Assessment Tool
- ↑ U.S. Environmental Protection Agency (March 2000), Chemical Safety Alert: Anhydrous Ammonia Theft