I disagree that there is no consideration of pollution sources. Part of the cleanup of the Keelung (Jilong) (Jilong) involved shutting down hog farms about 10 years ago. Had a major impact. I also see lots of work further up the river to stop little towns from dumping untreated sewage into the river. The Keelung (Jilong) (Jilong) is much cleaner now upstream.
I'm sure they are, but my point was it's easier to prevent new sources from ever happening than the eliminate old ones, especially if the new ones are springing up faster than you shut down the others. In fact the old ones are not necessarily a problem - in the case of hog manure, for example, it would have been far better to simply tell the farmers to dispose of it properly, perhaps with a bioreactor on-site and ultimate disposal on farmland. As it is, they've probably just gone off into the hills where nobody can see what they're dumping where. Pig farms don't just evaporate.
Yeah, I know I'm being skeptical again, but I've never seen any government care about what happens ten years after they've been elected out of office.