It's never anything to be totally ignored. But the list of toxins produced in past decades prior to the introduction of the EPA was beyond the scope. Pollution by industry becoming known to be causing health problems is what prompted the agency's creation when new laws were passed in years past.
Contaminants like lead, mercury, asbestos, and other elements were far more worrysome and had to see higher priorities at first Long term exposure with any harmful substance at any level is never good. But this is also why there are hazmat teams called in to clean things up once anything harmful is found in higher concetrations like any roadways splils when a train derails or a tanker is involved in an accident.
But all of that has to do mostly with environment not bottling or packaging of foods. Seepage into fresh water sources however concerns everyone even food processing plants.
Gee if you get mad at the environment does that mean you will slap the ketchup bottle even harder? That will get those burgers and fries saturated quicker!