Nearly 50 people in Monrovia complained of dizziness and other symptoms Monday after a manufacturing company mixed three chemicals that became super-heated and were released into the air.
City officials have since cleared the scene at Air Logistics, where, they said, about 200 people were potentially exposed to the sickening mixture of cycloaliphathic resin, boron trifluoride and ancamine.
In all, 45 people showed symptoms, including dizziness, chest pains, nausea and vomiting from inhaling the gas. Eleven people were hospitalized, including two who needed immediate medical attention.
The incident began just after 11 a.m. when smoke was reported coming out of a structure in the 100 block of Railroad Avenue, city spokeswoman Alexis Newell said.
"Employees within the business and the business next door then began to complain of feeling dizzy," she said.