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What You Ought to Know About Chlorinated Fluorocarbons

Residence is meant to be a secure haven. But when your private home comprises harmful and poisonous supplies, it could possibly be a menace to your well being and the planet’s. The Crimson Record is an inventory of “worst at school” supplies, chemical substances, and components the inexperienced constructing trade tries to keep away from. A few of these, like asbestos, are well-known, even to individuals exterior of the development trade. Human-made supplies we seek advice from by their chemical title, like chlorinated fluorocarbons, could also be much less acquainted to you. However they are often simply as dangerous. Realizing about these supplies and which merchandise include them can assist you make greener decisions at house that make the entire world a greater place to reside.

Chlorinated Fluorocarbons

There are two essential courses of chlorinated fluorocarbon that seem on the Crimson Record: chlorofluorocarbons and hydrochlorofluorocarbons. Each names are a mouthful. So, they’re normally referred to extra merely as CFCs and HFCs (or typically HCFCs), respectively. As soon as extensively utilized in quite a lot of merchandise, CFCs had been phased out by the Montreal Protocol after it turned obvious that they had been accountable for the depletion of the ozone layer. HFCs, that are far much less dangerous to ozone, changed them in most merchandise. However HFCs nonetheless have ozone-depleting potential. The U.S. Environmental Safety Company is focusing on HFCs for gradual phaseout by 2030. Neither CFCs nor HFCs happen naturally, and each sorts are potent greenhouse gases contributing to local weather change with international warming potentials (GWP) measured in 1000’s (in comparison with CO2 with a GWP of 1).

Ozone depletion is accountable for an elevated incidence of pores and skin most cancers, cataracts, impairment of human immune methods, and harm to wildlife. Starting from elevated pure disasters that create local weather refugees to ocean acidification, the penalties of local weather change are so quite a few and extreme they beggar perception.

Regardless of the deliberate phaseout, a stunning quantity of home items nonetheless include HFCs. Eliminating HFCs the way in which we eradicated CFCs a technology in the past may stop as a lot as 0.5 levels Celsius of warming over the subsequent century, attaining one-third of the objectives of the Paris Local weather Settlement.


Within the house, crucial HFC is used as a refrigerant and located in, you guessed it, the fridge. Most fridges made earlier than 2021 include the HFC R-134a. Starting in 2021, all U.S. fridges are made with R-600a, which has 200 instances much less international warming potential. That definitely will increase the attraction of upgrading to a brand new fridge. However in the event you do, you’ll want to recycle your previous one correctly. Dumping an previous fridge will finally launch all of the refrigerant into the environment. The Accountable Equipment Disposal program has created a searchable map to search out service suppliers who will ensure that the HFCs are captured and disposed of safely.

Air Conditioners

Air conditioners additionally use HFC refrigerants. The mostly used refrigerant in air conditioners is the HFC generally known as R-410A, a greenhouse gasoline that’s over 2,000 instances stronger than carbon dioxide. Technological options like 3M movie and solid-state thermoelectric air-con methods may remove the necessity for HFC refrigerants. However neither choice is out there for widespread adoption for house cooling but. Equally, International Cooling Prize-winning prototypes that use safer refrigerants gained’t be commercially out there till 2025. Within the meantime, a warmth pump/warmth exchanger is a better option than an air conditioner.

Automotive air conditioners are even worse than house air conditioners. Most automobiles immediately mechanically embrace an AC unit, and most of the people wouldn’t select to forego one anyway. Sadly, it’s not clear that saving the air conditioner for particularly scorching days reduces the quantity of HFC that it leaks. (Nevertheless, not working the automobile’s AC can enhance gasoline mileage, thus lowering some local weather impression.)


Though light-weight, foams usually are not gaseous. But the HFCs used as blowing brokers within the manufacture of foams account for 11% of HFC emissions. As along with your automobile’s AC, there isn’t a lot you are able to do to enhance the manufacture of foams. However each time attainable, you’ll be able to select to buy different supplies. Take into account sustainable insulation like cellulose or cotton batting as an alternative of spray foam, keep away from reminiscence foam mattresses, and use recyclable paper streamers or confetti as an alternative of foolish string at your subsequent party.


HFC 152A is the propellant in aerosol merchandise akin to hair spray, antiperspirants, disinfectants, and cleansing merchandise. There are some low GWP aerosols, however almost all of them nonetheless have larger GWP than CO2, the first greenhouse gasoline. Each time attainable, it’s higher to make use of a product with a pump spray than an aerosol. Or you’ll be able to change to a unique utility technique (akin to a stable deodorant as an alternative of a twig).

This text was initially revealed on March 16, 2022.

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