Weeks after the Eaton Fire burned through Altadena, USC researchers were curious if there were high levels of lead in the ...

Once you test your soil for pH, you will know whether or not you need to adjust the pH level for the specific crop you will grow. Garden lime consists of finely ground limestone and is applied to the ...

researchers at the Department of Earth Sciences at the University of Southern California were curious if there were high levels of lead in the soil. The researchers, who live in the area where the ...