Plan it to be combined with waste water treatment or other cooling water from power plants to dilute it, or disperse it over a larger area. It goes into the ocean currently.
Seems like there is a lot of criticism of the FAA while ignoring real time cuts to their budget. Looking at 2005 they had 14bn, 22.5bn in today’s money. Last years budget was 18.5bn.
I am sure there is waste and opportunities for improvement but… that ignores the significant increase in flights, new planes etc. that has ballooned much faster than the crude time value of money calc above. Criticising them for doing less with, umm, less seems a bit rich. Especially as others (not necessarily you in this comment) then use that a reason for more cuts to agencies.
But the solid piece of plastic isn’t shedding, it’s encased in ink and will be removed with set levels of ink wear. The synthetic varnishes, features etc are the same with paper so you’re putting out 4x the amount of ‘at risk’ shedding material due to the longer life of polymer.
Plastic = bad is a disaster for co2 emissions and ironically microplastics since the alternatives are heavier and don’t last as long. Meaning more transport, distribution etc and tires are one of the biggest sources of microplastics.
Does it shed particles? In a world of absolutism yes they would.
I don’t know if there are actually any studies but fyi cotton notes will also have plastic features and a synthetic, uv cured varnish to try and get some extra life (although far less than polymer) so also ’shed’. Banknotes are regularly inspected and worn or damaged notes are pulled - they really are the perfect product for plastic.
In Canada they last 8-16 years… polymer notes are unequivocally better. Corruption and inertia is the only reason they are not everywhere. As to plastic pollution, banknotes are already a closed, circular loop and hence you get the miracle properties of plastic without the downside.