A study conducted by Texas A&M University researchers deduced that toxic levels of lead found in the soil of some Fifth Ward ...

Houston, like many American cities, has areas with soil contaminated by non-biodegradable and persistent pollutants such as arsenic, lead, nickel and cadmium, known as heavy metals and metalloids.

Do you know the nutrient level of the soil in your garden? Do you know how much fertilizer to add next season? Soil testing ...

Acid sulfate soils are characterized by their orange hue and their tendency to kill surrounding vegetation and fish. Anders ...

were re-analyzed by an ore grade 4-acid digestion single element ICP-ES method (MSA method code ICF-6xx where xx is the element). Pb values >20% were further analyzed by volumetric titration. Soil ...