Eight people were taken to hospitals Monday night after being exposed to a pesticide at a San Mateo County trailer park in North Fair Oaks, a battalion chief said.

The San Mateo County Sheriff's Office and the Redwood City Fire Department responded to Sequoia Trailer Park in North Fair Oaks after receiving a 911 call from someone requesting medical aid at about 8:10 p.m., Redwood City fire Battalion Chief Daniel Abrams said.

Two residents who had apparently been using a fogger to exterminate fleas were found inside their trailer in a cloud of pesticide, he said. Those two residents and a neighbor were washed off and taken to a hospital to be treated for shortness of breath and eye irritation, Abrams said.

Five emergency responders were also taken to a hospital as a precaution and were later released. A hazardous materials team was dispatched to the trailer park to monitor the situation.

No evacuations were necessary, though trailer park residents were asked to shelter in place for about an hour, Abrams said. Fire officials reminded residents to follow all written instructions when handling household chemicals.

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