In the 1990s there were numerous manufacturing plants in the US (two on the South Hill of Ithaca alone) that were found to be contaminated with solvents like
https://en.wikipedia.org/wiki/Trichloroethylene
People thought it was great stuff, you wouldn't believe how hard it is to get cutting grease off things after you turn them on a lathe and vapor de-greasing makes it go away just like that.
China has some of the most advanced agriculture on the planet including a "vertical farm" that can sell straw mushrooms for about $2 a pack where they are super-proud that humans only touch them with a forklift. (Contrast that to the labor-intensive mushroom farms of Pennsylvania where somebody cuts each one with a knife.)
We are pretty omnivorous (I think mealworms start with "meal") and my obsession with anime and Japan has turned into serious sinophilia but my wife and I are hesitant to eat "Chinese Food" grown in China because of widespread environment contamination, I mean they've been building up heavy metal stocks ever since Emperor Qin Shi Huang poisoned himself with mercury.