A massive fire broke out at a refinery in California on Saturday, prompting a shelter-in-place order for nearby neighbourhoods due to concerns over air quality. The blaze was caused by a hydrocarbon leak that led to an explosion and massive fire, reported the Mercury News.
According to CBS News, the Martinez Refining Company in Contra Costa County reported the fire at 1:47 pm (local time), leading to a Level 2 hazardous materials notification, which was later upgraded to Level 3.The fire, contained within the facility, resulted in the closure of Marina Vista Avenue from Interstate 680 to Court Street, and Shell Avenue from Marina Vista to Pacheco Boulevard.
San Francisco Chronicles reported that at least 500 pounds of sulfur dioxide were released due to a “flaring event” caused by a unit malfunction. The fire produced thick black smoke, raising concerns about air pollution.
The Bay Area air quality management district issued an advisory, warning residents to stay indoors and seal windows and doors to minimise exposure to harmful particulates.
Three people were transported off-site, and one refinery worker, described as “disoriented,” was taken to a hospital, San Francisco Chronicles stated. Authorities confirmed that all refinery personnel were accounted for.
Contra Costa County Fire Protection District Battalion Chief Bob Atlas stated that the fire was “burning ferociously” and could not confirm when it would be fully extinguished. Witnesses described flames shooting nearly 200 feet into the air, with thick smoke drifting eastward.
Martinez Mayor Brianne Zorn urged residents to shelter in place, but no evacuation orders were issued. The refinery, operated by PBF Energy, has faced scrutiny over past incidents, including toxic dust emissions in 2022 and multiple flaring events.
Authorities continue to monitor air quality, and investigations into the cause of the fire are ongoing.
What is a shelter-in-place order?
According to Yale University, a shelter-in-place order is a safety directive issued during emergencies that requires people to stay indoors and take precautions to protect themselves from potential hazards.
These situations can include chemical spills, industrial fires, extreme weather events, or active shooter incidents. During such an order, individuals are advised to stay inside, close all doors and windows, and turn off ventilation systems to prevent exposure to harmful substances.
Local authorities typically issue an “all clear” once the danger has passed.
In the case of the Martinez Refining Company fire, officials urged residents in the affected areas to shelter in place due to the release of hazardous smoke and pollutants. Residents were advised to close all windows, turn off fans and air conditioners, and stay indoors to minimise exposure.
The Bay Area Air Quality Management District also issued an air quality advisory, warning that smoke from the fire contained fine particulate matter that could be harmful, especially for people with respiratory conditions.
