Day: April 21, 2021

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Halons Program | Ozone Layer Protection | US EPA

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Halons Program | Ozone Layer Protection | US EPA

On January 1, 1994, production and import of virgin halons were phased out in the United States. Since that time, recycled halons are the only supply of halons in the United States for specialty fire suppression applications. While alternatives are available for most halon-based fire extinguishing applications c, halons are still employed for important applications such as on civil aircraft, in legacy military systems, and for oil and gas exploration. Sources of recycled halons include stockpiles and recovered agent from cylinders collected from decommissioned systems both in the United States and abroad.

Why is Halon Banned?

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Why is Halon Banned?

The fire suppression agent, Halon is still in use today; however, there is no new production of Halons. While Halon is considered a clean agent by The National Fire Protection Association because it’s electrically non-conducting and does not leave a residue, Halon has an extremely high potential for ozone depletion and contributes to global warming potential. On January 1, 1994, Halon production ceases in compliance with the Montreal Protocol and the U.S. Environmental Protection Agency. The use of Halons has been reducing over the years, but there is still demand for it for specific applications.

Today’s Almanac for Wednesday April 21

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Today’s Almanac

Night before dawn is 5 hours and 33 minutes,
Dawn starts at 5:33 am and runs for 29 minutes,
Sunrise is at 6:03 am which is 5 hours and 56 minutes before noon,
High noon, the transit of the sun, is at 12:54 pm,
From twelve noon to the sunset at 7:44 pm is 7 hours and 44 minutes,
Dusk lasts for 30 minutes concluding at 8:14 pm,
Leaving 3 hours and 45 minutes until midnight.

Clouds Overhead