The MMDA on Sunday advised car owners against leaving bottles of disinfectant alcohol inside their vehicles to avoid fire during the summer months.
The COVID-19 pandemic has made it a necessity for many people to bring disinfectant alcohol whenever they are going outside, with some car owners leaving one inside their vehicles to sanitize their hands with before holding any car part.
Alcohol, however, can catch flame inside the car when exposed to high temperatures, especially when the vehicle is parked in an open space for a long period of time.
"Iwasan natin na mag-iwan ng bote ng alcohol sa loob ng ating sasakyan upang disgrasya ay maiwasan," the MMDA said.
"Ang alcohol ay flammable kaya mainam na ilagay ito sa mga lugar na ang temperatura ay hindi lalampas sa 30 degrees Celsius," he added.
At 2 p.m. on Saturday, Dagupan City sizzled with a heat index of 49 degrees Celsius against an actual temperature of 33.6 degrees Celsius, according to state weather bureau PAGASA. This could cause people to experience heat cramps, heat exhaustion, or even heat stroke.
The Science Garden in Quezon City registered a high of 33.2 degrees Celsius at 1:45 p.m. on the same day.
Heat index, according to PAGASA, is a human discomfort index which indicates what people perceive or feel as the temperature affecting their body, and may differ from actual temperatures.