PAULSBORO State and local officials monitoring a malfunction at a petroleum refinery near Paulsboro said no hazardous materials were released with the columns of smoke that rose Tuesday.
But authorities said the cold weather could cause a problem.
Paulsboro Fire Chief Alfonso G. Giampola said a power outage at the refinery shut down the steam at an ExxonMobil lubrication plant in Paulsboro.
"We're concerned about the sprinkler system freezing," Giampola said.
Schools were briefly ordered to shelter in place Tuesday afternoon, Giampola said. The order was lifted after monitoring showed air quality was fine.
The malfunction at the refinery owned by PBF Energy was reported to the state Department of Environmental Protection just after 11 a.m. As a result of a loss of steam, the refinery began a "controlled, orderly shutdown of most processing units," PBF spokesman Michael Karlovich said.