I know so. Today the smoke stacks of plants have scrubbers to remove particulates from going into the air. Acid rain is much better now than just 40 years ago.
160 years ago indoor plumbing was a rarity.
100 years ago people had to go outside to a privy to relieve themselves. Where I lived as a teenager I had to go outdoors to urinate and defecate.
Cars today have the thing with platinum to finish burning off the fumes that used to go in the atmosphere..
With the EPA and people VG being more environmentally responsible the environment is much better than it used to be