Sentence examples for clean soils from inspiring English sources

Of these, only mean Cu was higher than the soil background value of Beijing (23.6 mg/kg), which signifies relatively clean soils, close to natural soils.

The initially clean soils were contaminated with gasoil to the concentration of 100 g/kg, and left on the floor for the evaporation of light hydrocarbons.

Oil-contaminated soil (OCS) results from leaking underground storage tanks, oil spills on clean soils, or soils surrounding petroleum refineries and crude oil wells.

Earthworm microcosms were developed based on a combination of published protocols [75], [76] whereby non-sterile soil containing individual animals were inoculated with ∼5×109 bacteria and incubated for 1 week, prior to 22 subsequent weeks marked by repeated passages through "clean" soils (i.e., no B. anthracis).

First, ecosystems provide us with basic human needs like food, clean air, clean water and clean soils.

Three to eight feet of clean soil was also added.

So put clean soil up with clean air and water in terms of importance.

They use plants to absorb and break down toxins, eventually creating clean soil and water.

It includes putting a layer of plastic film over the ground and two feet of clean soil atop that.

Replant the bulb in clean soil and keep it in quarantine until it recovers (or doesn't).

Prior to the process, tens of thousands of tonnes of radioactive soil were removed from the construction area and replaced with clean soil.