Soil sample from Chesterfield, Missouri: 22 ppm Lead (safe by all standards)
August 4, 2022 — Thursday XRF test results for the soil sample from Chesterfield, Missouri (pictured): Article discussing soil hazard levels Article discussing testing soil Article discussing what I have done to address soil contamination in our own yard 60-second test (repeated multiple times to confirm results) Lead (Pb): 22 +/- 7 ppm Cadmium…