Don't leave a permanent mark, and do watch out for chemical contamination in public areas. (treehugger.com)
Similar to managing the risk of chemical contamination, it is one of the many costs that goes into delivering certified organic products to shoppers. (austorganic.com)
Spinach is more nutritious than either of those vegetables, but it comes last for chemical contamination. (supernaturalacnetreatment.com)