Well, you could start by growing as many of your own herbs as possible for home use. Basil, thyme, and oregano (to pick examples which are called out in the art

Well, you could start by growing as many of your own herbs as possible for home use. Basil, thyme, and oregano (to pick examples which are called out in the article as especially concerning) are relatively straightforward to grow in decent quantity, even for apartment dwellers. Since the harms here are from chronic and cumulative exposure, even a couple container-dwelling basil bushes on a balcony or a small DIY hydroponic setup in a closet could plausibly make a meaningful impact in the amount of consumed heavy metals, and a modestly sized garden plot can produce all a typical home cook will need if it's diverse, well-tended, and harvested regularly. Alternatively, yes, you could go to your local farmer's market and ask the folks selling fresh herbs if they have their soil tested for heavy metals. That seems like a pretty reasonable thing to do, honestly.