I actually studied oysters, mussels and lobsters from Halifax and from around Nova Scotia, and I found plastic in all of them, so we have it everywhere. When plastic winds up in the sea, it comes back out of the sea and into the air. That's where plastic can leapfrog over borders and over land masses, and it can reach up into the free troposphere and can travel around the globe in just a couple of weeks.
There's no “away” for plastics. Shipping plastic out to Asia to be recycled is just.... It's crazy. You're just going to get the plastic back in your air and in your food. All it does is set up an illegal waste trade, and we already have a problem with that. Interpol has a great report on it, and Canada is actually a part of that, sending waste to Asia and getting a fake certificate back to say that it was recycled, and it becomes part of your recycle quota.
That's where I think your 2030 pledge is irresponsible, because it's not going to increase the recycling. All it's going to do is increase the illegal waste trade.