Students in Soil Science 100 examining wet soil at UC Davis Russell Ranch, October 2016. A teaspoon of soil teems with billions of microbes that are vital to all life on Earth. UC Davis researchers ...

A worm burrows its way through the dark earth, ingesting particles of soil and expelling nutrient-rich casts in a constant forage for food. Charles Darwin described earthworms as one of the most ...

Lead levels in soil samples in Chicago, generated from the community lead portal. Urban households are likely to have multiple sources of lead exposure, making the screening level 100 ppm. Note how ...

Soil pollution refers to the dangerously high concentrations of contaminants in soil. While contaminants such as metals, inorganic ions, salts, and organic compounds naturally occur in soils, these ...

We offer several types of tests to meet the needs of our varied clientele. The “Soil Fertility Tests” and the “Lead Screening Test” are the tests most commonly used by farmers, homeowners, landscapers ...