A shelter-in-place order was issued for two East Texas cities—Deer Park and Pasadena—on Thursday following a fatal chemical incident at a gas facility. One person was killed, and several others were injured, with one individual hospitalized due to exposure to an unknown chemical at the Shell Pemex facility in Deer Park, according to the Harris County Sheriff's Office. Authorities quickly alerted residents in the area of a hazardous hydrogen sulfide gas release, prompting the emergency shelter-in-place order.
Immediate Safety Measures Enforced
Residents in Deer Park and Pasadena, which are located just east of Houston, were advised to take urgent precautions. The Pasadena Fire Department warned, "If you are in this area, please go inside, close all windows and doors, and turn off the air conditioner until an all-clear is given." Deer Park officials echoed this advisory, particularly urging those north of Spencer Highway and within Pasadena's city limits to follow the directive.
The incident occurred at a refinery owned by PEMEX, where crude oil is processed into gasoline and other fuels. Local officials are working with the facility to manage the situation, and the company has been contacted for a formal response. At this time, the cause of the chemical release remains under investigation.
What Is Hydrogen Sulfide?
Hydrogen sulfide (H₂S) is a highly toxic, colorless gas with a distinctive foul odor resembling rotten eggs. It is commonly found in oil and gas refining, mining, tanning, and paper processing industries. According to the Occupational Safety and Health Administration (OSHA), this gas poses significant risks in confined spaces because it is heavier than air, allowing it to accumulate at lower levels, making it more dangerous for workers.
Health Risks of Hydrogen Sulfide Exposure
The health effects of hydrogen sulfide exposure depend on the concentration and duration of exposure. Mild exposure can result in headaches, eye irritation, and respiratory issues, while higher levels can lead to unconsciousness or even death. Hydrogen sulfide remains one of the leading causes of workplace inhalation-related fatalities. Between 2011 and 2017, hydrogen sulfide exposure caused 46 deaths in the U.S., making it a serious hazard in industries that work with chemicals.
Ongoing Investigations and Community Alerts
As of now, local authorities and health officials are closely monitoring the situation. Residents are urged to remain indoors until an official "all-clear" notification is issued. Investigators are working to determine the cause of the release, and more information will be made available as the investigation progresses.
In the meantime, the safety and health of the Deer Park and Pasadena communities remain a priority as emergency responders address the aftermath of this tragic event. Stay tuned for updates and follow all official guidance to ensure your safety.