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Worldwide production of R-22 in 2008 was about 800 Gg per year, up from about 450 Gg per year in 1998, with most production in developing countries. [2] R-22 use is being phased out in developing countries, where it is largely used for air conditioning applications.
From 1930 to 1935, they developed dichlorodifluoromethane (CCl 2 F 2 or R12), trichlorofluoromethane (CCl 3 F or R11), chlorodifluoromethane (CHClF 2 or R22), trichlorotrifluoroethane (CCl 2 FCClF 2 or R113), and dichlorotetrafluoroethane (CClF 2 CClF 2 or R114), through Kinetic Chemicals which was a joint venture between DuPont and General Motors.
In 2000 in the UK, the Ozone Regulations [45] came into force which banned the use of ozone-depleting HCFC refrigerants such as R22 in new systems. The Regulation banned the use of R22 as a "top-up" fluid for maintenance from 2010 for virgin fluid and from 2015 for recycled fluid. [citation needed]
The U.S. Environmental Protection Agency on Wednesday granted California its request to enforce vehicle emissions standards stricter than federal rules, including the state's ban on sales of new ...
R22 Harmful if swallowed R23 Toxic by inhalation R24 Toxic in contact with skin R25 Toxic if swallowed R26 Very toxic by inhalation R27 Very toxic in contact with skin R28 Very toxic if swallowed R29 Contact with water liberates toxic gas. R30 Can become highly flammable in use R31 Contact with acids liberates toxic gas R32
A viral image shared on Threads claims Canada has purportedly banned President-elect Donald Trump from entering the country. ... Check Your Fact found no credible news reports to support the claim ...
Some cities take a gradual approach to prohibit the most polluting categories of vehicles first, then the next-most polluting, all the way up to a complete ban on all fossil-fuel vehicles; some cities have not yet set a deadline for a complete ban, and/or are waiting for the national government to set such a date. [100] [101] [102]
WASHINGTON (Reuters) -China-based DJI and Autel Robotics could be banned from selling new drones in the United States market under an annual military bill set to be voted on later this week by the ...