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How Does An Oil Refinery Explosion Affect Air Quality?

October 5, 2025

El Segundo residents know our city's skyline well. The tall structures of petroleum refineries have been part of our community for over a century. Living near these industrial facilities means understanding the risks they bring, especially when it comes to the air we breathe. When accidents happen at these facilities, the effects reach far beyond the refinery gates. They impact neighborhoods from Manhattan Beach to Hawthorne and beyond.

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If you've experienced an injury due to someone else's negligence, contact Bloom Injury Law today for a free consultation. Call (310) 525-5985 or contact us online.

At Bloom Injury Law, we've worked with South Bay residents who lived through industrial accidents. Understanding how an oil refinery explosion affect air quality helps our community stay safe and make smart decisions during these events.

How Does An Oil Refinery Explosion Affect Air Quality?

An oil refinery explosion dramatically worsens air quality by releasing large amounts of hazardous chemicals into the atmosphere all at once. These explosions send substances like benzene, sulfur dioxide, hydrogen sulfide, and particulate matter into the air that nearby communities breathe. Unlike controlled emissions from normal refinery operations, explosions release these pollutants rapidly and unpredictably. The force of the blast propels chemicals high into the air where wind carries them across surrounding neighborhoods, sometimes traveling miles from the original site.

The impact on air quality can last from hours to several days, depending on the size of the explosion, weather conditions, and which chemicals were released. Visible black smoke contains toxic particles and incompletely burned chemicals that settle over downwind areas. Weather patterns like temperature inversions can trap pollutants close to the ground, keeping them in breathing zones longer. People exposed to this polluted air may experience coughing, breathing difficulties, eye irritation, headaches, and other health problems. Some chemicals also settle on surfaces in the community, creating longer-term exposure risks even after the visible smoke clears.

What Happens During a Refinery Explosion

When an explosion occurs at a petroleum facility, dangerous chemicals immediately release into the air. These facilities turn crude oil into different products like gasoline and diesel. Each part of the refinery contains different chemicals. An explosion can release all of these substances at once into the air that people in Playa del Rey, Torrance, and other nearby areas breathe.

How Does An Oil Refinery Explosion Affect Air Quality?

Explosions Release Harmful Chemicals Into the Air

The blast from an explosion sends chemicals high into the sky very quickly. Unlike normal emissions from daily operations, explosion releases happen fast and without warning. Common substances released include:

  • Hydrogen sulfide (smells like rotten eggs)
  • Sulfur dioxide (causes breathing problems)
  • Benzene (a cancer-causing chemical)
  • Particulate matter (tiny particles that get into lungs)
  • Volatile organic compounds (chemicals that easily become vapor)

The force of the explosion pushes these chemicals into the atmosphere. Wind patterns then carry them across South Bay communities. They can reach as far as Inglewood or down to the Palos Verdes Peninsula.

Weather Affects Where Pollution Travels

Several factors determine how an oil refinery explosion affect air quality in different areas:

  • Wind direction: On most days in El Segundo, ocean breezes push contaminated air toward inland areas. Santa Ana winds can carry pollution in completely different directions.
  • Wind speed: Gentle winds keep pollution near the source. Stronger winds spread chemicals over wider areas but make them less concentrated.
  • Temperature: The marine layer that often covers El Segundo and beach cities can trap pollutants close to the ground where people breathe.

The hills of Palos Verdes to the south and the rise toward Baldwin Hills create wind patterns that can move pollutants in unexpected ways.

How Air Quality Changes After an Explosion

The immediate impact on air quality depends on the size of the explosion, which chemicals were involved, and the weather. Air quality monitoring stations throughout the region measure pollution levels and detect when they spike.

Air Quality Gets Worse Right Away

Following an explosion, pollution levels jump dramatically. Monitoring stations detect:

  • High levels of particulate matter (PM2.5 and PM10) - tiny particles that get deep into lungs
  • Increased sulfur dioxide - creates a harsh smell that residents near Sepulveda Boulevard or Imperial Highway notice
  • Elevated levels of other harmful chemicals

The black smoke plumes you can see from LAX or nearby beaches contain incompletely burned chemicals and carbon particles. This smoke is dangerous because it carries both particles and toxic substances.

Poor Air Quality Can Last for Days

How long the air stays polluted varies. Initial problems may last several hours while firefighters work to stop the release. However, air quality can stay bad for days because:

  • Damaged equipment keeps releasing chemicals
  • Fires continue to burn and create smoke
  • Chemicals settle on surfaces and can become airborne again

Temperature inversions, which are common in the South Bay, make things worse. Warm air sits on top of cool air and acts like a lid. This traps pollutants close to the ground instead of letting them rise and spread out. When this happens, residents from Redondo Beach to LAX may notice bad air quality for longer periods.

Pollution Doesn't Just Disappear

Understanding how an oil refinery explosion affect air quality over time is important. Some chemicals stay in the environment long after the smoke clears. They settle onto:

  • Soil in parks and yards
  • Playground equipment at places like Chevron Park
  • Plants and trees throughout the community
  • Water surfaces in local areas

Benzene, a cancer-causing chemical found in petroleum, can remain in the environment for a long time. When it lands on surfaces at the El Segundo Dog Park or school playgrounds, people can be exposed weeks after the explosion.

Health Effects from Breathing Polluted Air

When air quality gets bad after a refinery incident, people experience various health problems. Knowing the symptoms helps you protect yourself and your family.

You May Feel Sick in the Hours and Days After

Short-term health effects include:

  • Coughing and throat irritation
  • Difficulty breathing
  • Eye irritation and watering
  • Headaches
  • Nausea and dizziness
  • The smell of rotten eggs (from hydrogen sulfide)

These symptoms can appear within hours of exposure. The smell alone can linger in areas like Chevron Park or along Rosecrans Avenue long after the incident.

Some People Face Higher Risks

Certain groups need to be extra careful when air quality drops:

  • Children: Kids at schools in the Wiseburn Unified School District and other nearby schools are more vulnerable. Their lungs are still developing and process air differently than adults.
  • Elderly residents: Older people often have more trouble handling poor air quality.
  • People with asthma or COPD: Pre-existing breathing conditions make air pollution much more dangerous.
  • People with heart conditions: Bad air quality affects the heart as well as lungs.

If you fall into any of these groups, take extra precautions during air quality alerts.

How Officials Monitor and Respond

Multiple government agencies watch over refineries and respond when accidents happen. They work to keep residents safe and informed.

Several Agencies Track Air Quality

Different organizations have specific jobs during and after refinery incidents:

  • South Coast Air Quality Management District: Monitors pollution levels, investigates incidents, and enforces air quality rules
  • California Environmental Protection Agency: Oversees industrial safety and environmental protection
  • U.S. Environmental Protection Agency: Gets involved in major incidents with hazardous substances

After an explosion, these agencies set up mobile monitoring equipment in neighborhoods, schools, and parks. They measure pollution levels and track how air quality changes. This information helps them decide whether to tell people to stay inside or evacuate.

You'll Get Updates Through Multiple Channels

During refinery incidents, residents receive safety information through:

  • Emergency Alert System broadcasts
  • Text messages and emails (if you're registered for city alerts)
  • Automated phone calls
  • Social media posts from local government and emergency services
  • Local news coverage

Community members along Vista del Mar or around Manhattan Beach often share information on social media too. Sign up for your city's emergency notification system if you haven't already.

How to Protect Yourself During Air Quality Events

When officials warn about poor air quality after an explosion, take action right away to reduce your exposure.

Stay Inside and Limit Exposure

The best way to protect yourself:

  • Close windows and doors: Keep outside air from coming in
  • Stay indoors: Avoid outdoor activities at Rec Park, the beach, or other outdoor spaces
  • Use air conditioning on recirculation mode: Don't pull in outside air
  • Run air purifiers: HEPA filters remove many harmful particles from indoor air

Take Extra Care If You Have Health Conditions

If you or family members have breathing problems:

  • Make sure you have enough medication on hand
  • Call your doctor if symptoms get worse
  • Consider leaving the area if you have serious respiratory conditions

Know When It's Safe Again

Don't go back to normal outdoor activities until:

  • Officials say air quality has improved
  • You no longer see or smell smoke
  • Air quality monitoring shows pollution levels have dropped

The South Coast Air Quality Management District provides real-time air quality updates on their website and through local news.

When You Might Need Legal Help

If an oil refinery explosion affected your health or property, you may have legal options. At Bloom Injury Law, our oil refinery explosion lawyers help South Bay families understand their rights after industrial accidents.

Document What Happened to You

Keep records of:

  • Medical visits and treatments for symptoms
  • Photos of visible smoke or residue on your property
  • Notes about when symptoms started and how long they lasted
  • Receipts for expenses related to the incident
  • Air quality reports from the day of the explosion

This documentation can help if you need to file a claim later.

An Oil Refinery Explosion Lawyer Can Help

Contact an oil refinery explosion lawyer if you:

  • Developed breathing problems or other health issues
  • Needed medical treatment because of the pollution
  • Had to evacuate your home
  • Experienced property damage
  • Missed work due to health effects

At Bloom Injury Law, we understand how these incidents affect local families. We can review your situation and explain your options at no cost.

Stay Informed and Stay Safe

Living in El Segundo means being part of a community that has existed alongside refineries for generations. While these facilities provide jobs and economic benefits, they also create risks. Everyone from Marina del Rey to Gardena should understand these risks.

Knowing how an oil refinery explosion affect air quality helps you protect yourself and your family. We encourage all South Bay residents to:

  • Sign up for local emergency alert systems
  • Learn your city's emergency procedures
  • Know where to find real-time air quality information
  • Understand your rights if an industrial accident affects you

At Bloom Injury Law, we believe informed neighbors make safer communities. Whether you're at the beach, walking your dog, or just going about your day, awareness helps keep everyone safer.

If an industrial accident has affected you or your family, we're here to help. Contact us to discuss your situation and learn about your legal options. Understanding how these incidents work is the first step in protecting your health and your rights.

Get Help After a Refinery Accident

If you or someone you care about has been hurt or gotten sick because of a refinery explosion, Bloom Injury Law is here to help. We serve El Segundo and the entire South Bay community. Contact us today for a free consultation to discuss your case and learn about your rights.

Pay Nothing Unless You Win a Settlement

If you've experienced an injury due to someone else's negligence, contact Bloom Injury Law today for a free consultation. Call (310) 525-5985 or contact us online.

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