The health department tested four schools for lead. They've confirmed two have hazards, while a third has results pending.

Weeks after the Eaton Fire burned through Altadena, USC researchers were curious if there were high levels of lead in the soil. Here’s what they found.

Sediment cores from the Aegean Sea reveal that human-driven lead contamination began 5,200 years ago—much earlier than expected. This pollution is tied to shifts in economy and land use, culminating ...

Lead exposure is particularly concerning among children under 6 years old, since their growing bodies absorb the metal faster ...

Two University of Southern California professors have found that Southern California may have dodged the worst of a hidden ...