It’s a shorthand for news articles intended for laypeople but it gets the point across; no natural processes yet found break down these compounds and in small but measurable quantities they build up in our environment. It’s not practical to say, treat all sewage effluent or refuse going to recycling / landfill / incineration to break them down so they build up and we don’t really know what they will end up doing. So for most practical purposes, yes they’re not going anywhere.
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