In making a pH determination on soil, the sample is saturated with the dye for a few minutes and the color observed. This method is accurate enough for most purposes. Kits (pH) containing the ...

Pasadena Unified School District released results from soil samples this week, five months after the Eaton Fire.

New soil testing by the Los Angeles County Department of Public Health has found high levels of lead and other toxic metals ...

Over three days in late March, four Los Angeles Times environment reporters and an editor fanned out across the Eaton and Palisades burn scars to collect 40 soil samples from residential ...

She demonstrated the colour coded maps issued to farmers after the soil sampling has taken place ... Studies have shown that ...

The results show high levels of lead in the soil and other toxic metals on properties in both areas, including spots already ...