Health officials raised alarms about the quality of the district's ongoing maintenance and cleaning practices at schools.

Chris Baumgart asked Public Investigator why high-end homes on Lake Drive seemed to have gotten their lead pipes replaced first. Here's what we found.

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 ...

It's a homecoming for Resorts World's new CEO, Alex Dixon. The third-generation casino employee said he never forgets where ...

The new pace is increasing the county’s ability to tackle lead paint, especially compared with work during the coronavirus pandemic.

Late last month, before the rains arrived, USC professor Seth John traveled through foothill neighborhoods devastated by the ...