L.A. Times - Science

In April, EPA Chief Lee Zeldin and Robert F. Kennedy Jr. held a news conference declaring their dedication to studying microplastics, in the human body and in drinking water. But a new EPA drinking water testing rule leaves them out.

The weeklong Lineage warehouse fire coincided with a surge in hospital visits from Angelenos concerned about throat pain and breathing problems, The Times has learned.

The copious water needed to put out the Lineage warehouse fire in Boyle Heights over a week is now running into the LA River.

Los Angeles County Public Health Department officials say accidental drug overdose deaths are down for the third year in a row.

Can a smaller dose of GLP-1s cut side effects and costs? Experts weigh in on the rising trend of microdosing Ozempic and Wegovy.

Toxic air has covered the San Gabriel Valley and beyond at times, as the fire continues to burn and the wind shifts the pall in different directions.

The U.S. will begin to test kratom for its potential to treat opioid disorder. In California, a complaint targets a business accused of violating kratom restrictions.

Rep. Sam Liccardo wants to rebuild the Pacifica pier with help from the federal government. But does investing in this kind of infrastructure make sense?

The fourth person in the U.S., the third California resident, has been infected with the bacterium Rickettsia lanei.

The pandemic has left some evidence that viral infection may play a role in reawakening dormant cancer cells already present in a patient's body before infection.

The genre-defying singer-song writer and Santa Cruz native, was one of six killed when two helicopters collided Sunday morning in Brazil.

Nara Organics recalled its baby formula after a California child and two others were sickened by potentially fatal infant botulism, federal officials said.

Scientists have documented a whale graveyard in the Indian Ocean with some carcasses dating back 5.3 million years, and it's supporting a thriving community of marine life.