Wildfire smoke pollution raises growing health concerns

Wildfire smoke, intensified by climate change, is becoming a leading global source of deadly air pollution, contributing to hundreds of thousands of premature deaths each year.

Hiroko Tabuchi reports for The New York Times.


In short:

  • Wildfire smoke contains hazardous pollutants like particulate matter, nitrogen dioxide and lead, which are linked to respiratory, cardiovascular and other diseases.
  • Recent fires in Los Angeles elevated air quality to dangerous levels, particularly affecting vulnerable populations such as children and older adults.
  • Studies suggest that wildfire pollution has reversed progress in reducing harmful air particles, with mortality rates from wildfire-related pollution projected to rise significantly.

Key quote:

“We’re breathing in this toxic brew of volatile organic compounds and polycyclic aromatic hydrocarbons and hexavalent chromium. All of it is noxious.”

— Dr. Lisa Patel, pediatrician and executive director of the Medical Society Consortium on Climate and Health

Why this matters:

Air pollution from wildfires threatens public health even in regions far from fire zones. Prolonged exposure to smoke may lead to long-term health complications, requiring urgent measures to address climate change and protect at-risk communities.

Related EHN coverage:

Men women and children lined up to receive food rations.

How the end of USAID eroded global environmental goals

An analysis finds the cancellation of $1 billion in annual funding weakened protections around the world and undermined U.S. interests.
The facade of the Supreme Court of the U.S.
Credit: Gary Blakeley/Big Stock Photo ID: 5909527

EPA rollback may worsen Trump’s Supreme Court climate headache

The move could undercut the legal theory the administration is relying on to block climate lawsuits from advancing in state courts.

Drone aerial view of new Microsoft data centers
Credit: Mauvries/BigStock Photo ID: 465964923

Erin Brockovich on her fight against ‘secretive’ data centers

Erin Brockovich’s work in helping win a $333m environmental lawsuit in the 1990s spawned a hit film starring Julia Roberts – now, Brockovich tells David Callaway, her attention has turned to the burgeoning issue of data centers.

A group of young schoolchildren sitting around a table

Some Ontario students can’t escape extreme heat

Children are especially vulnerable to extreme heat. Some students in Ontario's Peel Region may have little relief when both their schools and homes are difficult to cool.

Protesters carrying a large sign in the shape of the Earth

Global warming will breach the 1.5 degree celsius limit. Now what?

As global temperature increase shoots past 1.5 degrees Celsius, the vulnerable countries that fought for that Paris Agreement target face a brutal new reality.
A cleared forest with trees in the background

Biomass power surge in Indonesia threatens tropical forests

Expanding deforestation in Indonesia caused by the country’s wood pellet and chip industry is putting further pressure on tropical forests, Key Biodiversity Areas, and Indigenous territories in the archipelago.

A selection of house plants under a tent

America’s houseplants come at a steep price for greenhouse workers

The people who grow houseplants aren't often thought of as agricultural workers, but they face many of the same hardships — especially in extreme heat.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.