San Francisco Bay area homes face high air quality risks

Every home in the Bay Area is at high risk of experiencing poor air quality due to wildfires, a stark contrast to its status as one of the most expensive housing markets.

Christian Leonard reports for The San Francisco Chronicle.


In short:

  • A report by Redfin shows that all homes in the San Francisco and San Jose metro areas are highly susceptible to unhealthy air, mainly because of wildfires.
  • Among major U.S. metro areas, those in California face the highest risk of poor air quality.
  • Efforts to improve air quality in the Bay Area were effective until mid-2010s, but recent severe wildfires and ongoing emissions have deteriorated the situation.

Key quote:

"California is 'ground zero' for worsening air quality, with wildfires driving exposure to unhealthy air."

— First Street Foundation's research.

Why this matters:

The situation in the Bay Area serves as an example of the broader challenges climate change brings to urban health and living standards nationwide. How do wildfires impact your health?

Customers at Pike Place Fish Company wait to order fish at the famous open air seafood market.
Credit: miles around/BigStock Photo ID: 180690241

How climate change is causing ‘the gentrification of seafood’

As environmental forces make fishing and harvesting more costly, the price of once-everyday fish has ballooned.
Yellow mining trucks moving along a dusty quarry road while working an open pit coal mine.
Credit: Parilov/BigStock Photo ID: 384977978

Coal and gas avoiding stricter laws by expanding existing mines, Australian Climate Council warns

The Climate Council says coal and gas mines are using a "loophole" to expand operations and add new emissions.

Henry Waxman explaining his global warming bill H.R. 2454 at UCLA Los Angeles
Credit: joeygil/BigStock Photo ID: 5820123

IPCC is under pressure to delay publication of key global climate report

AR7 report was scheduled for 2028 in time for Cop33 summit but some petro-states and major developing countries want to postpone it.

A green-colored electric bus in downtown Minneapolis advertising "Go GREENER"
Credit: stevieg/BigStock Photo ID: 2716619

Europe's public transport: A data-driven green reality check

Greener buses and cleaner fleets are reshaping public transport. But are cities moving fast enough to meet their zero-emission goals?

Solar panels juxtaposed against transmission lines and wind turbines
Credit: kckate16/ BigStock Photo ID: 478351339

With scaled-back plans, green banks navigate Trump’s funding freeze

Green banks enabled $12.4 billion in hard-to-finance clean energy and climate projects in 2024 and 2025.

A nurse holding a blood pressure gauge while taking a patient's blood pressure
Credit: Ahmed/Unsplash+

MaineHealth Pen Bay and Waldo Hospitals earn national recognition with 2026 Greenhealth Champion Award

To qualify, organizations must report greenhouse gas emissions data and demonstrate progress in areas such as waste reduction, energy efficiency, emissions management and resource conservation.

A view of a hospital corridor with two nurses wheeling a patient toward a room

What happens to healthcare in extreme heat?

Stories from inside Europe’s overheating healthcare settings — and exploring what facilities and policymakers can do to prepare them for the changing climate.

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.