For a second time in three months, a high school in the Russian Hill neighborhood was briefly evacuated because of a peculiar, gas-like smell.
After the evacuation of the school it was determined that the smell was harmless.
Galileo Academy of Science and Technology at 1150 Francisco St. was evacuated around 11:50 a.m. because staff smelled something unusual, said fire spokeswoman Lt. Mindy Talmadge.
About 20 minutes later, Pacific Gas and Electric Co. determined that there was no merit to it, Talmadge said.
“I guess there was some purging of natural gas,’’ she said. “It wasn’t something unusual.’’
The same thing happened at Galileo on Sept. 15, six days after the fatal San Bruno pipeline explosion. The explosion has significantly increased awareness of unusual smells by residents all over the Bay Area.