The Los Angeles Unified School District is among several Southern California school districts that will go under an environmental microscope.
A chemical spill was reported Monday in an industrial area in Monrovia, prompting response from a hazardous-materials team and paramedics.
Wal-Mart will pay $81.6 million after pleading guilty to criminal charges of improperly disposing of fertilizer, pesticides and other hazardous products that were pulled from stores in California and Missouri because of damaged packaging.
A tanker truck leak spilled some type of chemical onto a Carson roadway Wednesday afternoon, which prompted a hazardous materials situation.
A man arrested at Los Angeles International Airport last week wearing body armor was ordered Friday morning to remain in jail until a trial scheduled later this month.
A worker at a hazardous materials sorting facility in Inglewood had to be hospitalized Monday when a canister released an unknown material that had dozens of people complaining of eye irritation.
A driver rammed his vehicle into a social services building in Orange Monday night before throwing vials of an unknown substance.
A Union Pacific freight train carrying hazardous materials derailed in Littlerock, prompting the evacuation of dozens of nearby residents.
Crude oil has seeped from beneath a busy street in Huntington Beach, forming a dark puddle that has halted traffic.