>>2854781Not necessarily. In the eastern USA and Midwest, altitude does nothing as the chemicals are literally aerosols in some regions. Lakes in Arctic Canada and northern Alaska test positive for these chemicals even though they have lower population density than Siberia. This is because the chemicals are literally airborne and riding the Pacific Jetstream from China. The majority of the lower 48 is turbo fucked chemically from both the jetstream chemicals from east Asia and local chemical production and mining and industrial farming for the last 100 years straight. The only streams left in the lower 48 that can actually pull fish that test with zero chemicals are native high elevation trout streams in the mountain west and isolated lakes/streams at high elevation in the PNW. Even some of these waters may still test for industrial chemicals sometimes brought intermittently by the Pacific jetstream from China. And likewise since the Pacific jetstream is the mother jetstream of east Asia, all of north America, and most of Europe, all industrial locations, all of them are broadly polluted to some extent even in actual wilderness.
Also in general, fish in the middle/lower part of the food chain may contain less chemicals due to the fact they don't live long and are less piscivorous. In the east these would be fish like bluegill/sunfish. All catfish and bass are fucked in general, even in the mountain west high elevation lakes and rivers. All great lakes fish in general are also fucked because the lakes are too severely polluted that most fish are on micro doses or even high doses of human medications present near shore and in rivers on top of industrial chemicals. The oceans aren't any better and are actually generally worse for larger species in terms of endocrine disrupting chemicals and neurotoxins (Mercury, micro plastics, DDT, OCs, PFCs, TBT/BTs, PFAs), even tuna caught in literal ocean wilderness test positive for most of these. Saltwater farmed is worse.
