The Brief

Hexavalent chromium nanoparticles were found in air samples gathered by researchers over the course of several days in the spring as they drove through and around the Eaton and Palisades fire burn areas.

The heavy metal — also known as chromium-6 and brought to public consciousness by environmentalist Erin Brockovich in the 1990s — is a known carcinogen. But researchers aren’t yet sure what the public health implications are.

“ We think that there's hotspots in the cities, but we don't have a way to quantify that yet with what we've measured so far,” said Michael Kleeman, professor of civil and environmental engineering at UC Davis.

Kleeman was the lead author of a paper that’s been submitted to the journal Nature’s Communications Earth and Environment for peer review and published online as a preprint. The researchers are part of the L.A. Fire Health Study, a group of universities working together to investigate the health effects of the January fires.

The high temperatures produced by wildfires can transform chromium — which is both naturally occurring and found in consumer products — into chromium-6. It’s a known hazard. A 2023 study found chromium-6 present in soil 10 months after the Hennessy Fire in Northern California. The persistence was likely in part due to a lack of precipitation.

Kleeman said it’s unclear where the nanoparticles they detected may have come from.

Tires could be a source, as could solar panels, electronics, or even fire retardant, which LAist found contains chromium.

To gather the samples, the team drove through the Altadena and Palisades burn areas on eight separate occasions with air samplers mounted to their roof. The trips occurred while lots still were being cleared, raising the possibility that now, with that activity dying down, less dust may be kicked up and chromium-6 levels in the air will be lower.

They’ll be gathering additional samples from the burn areas next week.

Health effects

The levels of chromium-6 detected were below Occupational Health and Safety Administration workplace limits but above the U.S. Environmental Protection Agency screening levels for workplace and home air, according to the study.

“It would be important to follow up with more recent measures to make sure that the problem is gone,” said Dr. Ana Navas-Acien, the chair of environmental health sciences at Columbia University’s Mailman School of Public Health who wasn’t involved in the research.

That’s because chronic exposure to hexavalent chromium can increase a person’s risk of lung cancer and nasal cancer, as well as lead to eye, kidney, and lung damage. Asthma and respiratory irritation are the primary concern with short-term, low-level exposure.

When inhaled, the tiny chromium-6 particles are absorbed rapidly and fully through the respiratory tract, entering the blood stream, penetrating cells, and traveling to major organs, including the liver and the brain.

Navas-Acien said it would be reassuring to know that levels of chromium-6 in the air have come down, as that would indicate this was a temporary phenomenon.

“But if you still detected it today, then I think that’s when we need to be more careful because there could be a real issue that’s more chronic,” she said. “Was it because of the fires, the cleaning? Was something going undetected?"

It will take a few weeks for Kleeman’s team to process the results of new tests.

Questions to be answered

Kleeman said the researchers’ work is not done. They hope additional study in the burn areas can answer some of the following questions:

• Have levels of hexavalent chromium returned to normal background levels? This will help determine if there’s an ongoing threat to public health.
• What's the source of the hexavalent chromium nanoparticles? Determining a source is critical to figuring out where the hotspots may be, who has been exposed, and to what degree their health may be compromised.
• Given all of the information gathered, should we change how we approach fighting and cleaning up after fires going forward? Can this problem be mitigated? If the problem is due to naturally occurring chromium in the soil, not much can be done. If it’s related to a product, then maybe that product can be removed from high fire areas.

How to stay safe and learn more

Both Kleeman and Navas-Acien recommended that you follow the same procedures you might for responding to lead contamination: run air purifiers, use a vacuum with HEPA filters, wipe down dusty areas with a wet cloth, all in an effort to prevent particles from becoming airborne in your home. It helps to leave your shoes at the door to keep dust out of the home and to wear a mask when you do cleanup work as well.

“The important message that we want to get across is: Get air filters in your house if you haven't done it yet,” said Jane Lawton Potelle with Eaton Fire Residents United, which has been working with L.A. Fire Health Study researchers.

Your HVAC system should have MERV-13 or higher HEPA filters; and standalone air purifiers should have HEPA and carbon filters, according to a Q&A on the L.A. Fire Health Study website.

In collaboration with Eaton Fire Residents United and Resilient Palisades, experts held an online Q&A at 6 p.m. Thursday. Public health specialists from UCLA, Harvard and other universities answered questions and explained their research. Find a summary and a video of the webinar on the PostFire website.

LAist senior editor Jared Bennett contributed to this report.

This story first appeared on The LA Local.

Since 1977, Richard Santillan has been to every Opening Day game at Dodger Stadium. 

“The tradition goes from my father, to me, to my children and grandchildren. Some of my best memories are with my father and children here at Dodger Stadium,” Santillan told The LA Local, smiling under the shade of palm trees near the entrance to the ballpark Wednesday morning. He was there to protest the team less than 24 hours before Opening Day.

Santillan, like countless other loyal Dodgers fans, is grappling with his fan identity over the team’s decision to accept an invitation to the White House and owner Mark Walter’s ties to ICE detention facilities.

More than 30 people joined Santillan on Wednesday morning for a press conference held near 1000 Vin Scully Drive to convey a message directly to the team. 

“We are demanding the Dodgers stop participating in funding of inhumane treatment of families and do not go to the White House to celebrate with the criminal in chief,” Evelyn Escatiola told the crowd. “Together, we have the power to make a change.”

Escatiola, a former dean of East Los Angeles College and longtime community organizer, urged fans to flex their economic power by “letting the Dodgers know that we do not support repression.”

Jorge “Coqui” Rodriguez, a lifelong Dodgers fan, spoke to the crowd and called on Dodgers ownership to divest from immigration detention centers owned and operated by GEO Group and CoreCivic.

Jorge Coqui H Rodriguez speaks at a press conference outside Dodger Stadium on March 25, 2026, to demand the Dodgers not to visit the White House following their 2025 World Series win.

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J.W. Hendricks

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The LA Local

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In a phone interview a day before the protest, Rodriguez told The LA Local he did not want the Dodgers using his “cheve” or beer money to fund detention centers. 

“They can’t take our parking money, our cacahuate money, our cheve money, our Dodger Dog money and invest those funds into corporations that are imprisoning people. It’s wrong,” Rodriguez said. 

Rodriguez considers the Dodgers one of the most racially diverse teams and said the players need to support fans at a time when heightened immigration enforcement has become more common across L.A.

The team’s 2025’s visit to the White House drew ire from the largely Latino fan base, citing the Trump administration’s ongoing attacks on immigrants. 

In June, the team came under further scrutiny when rumors swirled online that federal immigration agents were using the stadium’s parking, which immigration authorities later denied in statements posted on social media accounts.

The team again came under fire after not releasing a statement on the impacts of ICE raids on its mostly Latino fan base at the height of immigration enforcement last summer. The team later agreed to invest $1 million to support families affected by immigration enforcement.

When he learned the Dodgers were pledging only $1 million to families in need, Rodriguez called the amount a  “slap in the face.” 

“These guys just bought the Lakers for billions of dollars and they give a million dollars to fight for legal services? That’s a joke,” Rodriguez said. “They need to have a moral backbone and not be investing in those companies.”

According to reporting from the Los Angeles Times, former Dodgers pitcher Clayton Kershawsaid last week that he is looking forward to the trip.

“I went when President [Joe] Biden was in office. I’m going to go when President [Donald] Trump is in office,” Kershaw said. “To me, it’s just about getting to go to the White House. You don’t get that opportunity every day, so I’m excited to go.”

The Dodgers have yet to announce when their planned visit will take place. 

Santillan sometimes laments his decision to give up his season tickets in protest of the team. His connection to the stadium and the memories he has made there with family and friends will last a lifetime, he said. On Thursday, he will uphold his tradition and be there for the first pitch of the season, but with a heavy heart.

“It’s a family tradition, but the Dodgers have a lot of work to do,” he said.

A local favorite mom-and-pop bookshop in Eagle Rock is facing displacement due to a steep rent hike. The owners say theirs is just one of several small businesses along Eagle Rock Boulevard struggling to keep up with lease increases.

Over the past 19 years, many in the neighborhood have come to love READ Books for its eclectic collection of used titles and shop dog Florence.

Co-owner Jeremy Kaplan said it’s been a delight to grow with the community over the years.

“Like seeing kids come back in, who were in grade school and now they’re in college,” Kaplan said.

But the building where Kaplan and wife Debbie rent was recently sold, and the rent increased by more than 130% to $2,805 a month, Kaplan said. He told LAist it was an increase his small business simply could not absorb.

Kaplan said he originally was given 30 days notice of the rent increase. After some research, assistance from Councilmember Ysabel Jurado’s office and some pro-bono legal help, Kaplan said he pushed back and got the 90-day notice he’s afforded by state law.

California Senate Bill 1103 requires landlords to give businesses with five or less employees 90 days’ notice for rent increases exceeding 10%, among other protections.

Systems Real Estate, the property management company, did not immediately respond to LAist’s request for comment.

What can small businesses do? 

Nadia Segura, directing attorney of the Small Business Program at pro bono legal aid non-profit Bet Tzedek said California law does not currently allow for rent control for commercial tenancies.

Outside of the protections under SB 1103, Segura said small businesses like READ Books don’t have much other recourse. And even then, commercial landlords are not required to inform their tenants of their protections under the law.

“There’s still a lot of people that don’t know about SB 1103. And then it’s very sad that they tell them they have these rent increases and within a month they have to leave,” Segura said.

She said her group is seeing steep rent hikes like this for commercial tenants across the city.

“We are seeing this even more with the World Cup coming up, the Olympics coming up. And I will say it was very sad to see that also after the wildfires,” Segura said.

Part of Bet Tzedek’s ongoing work is to advocate for small businesses, working with landlords who are increasing rents to see if they are willing to give business owners longer leases that lock in rents.

What’s next 

After READ Books posted about their situation on social media, commenters chimed in to express their outrage and love for the little shop.

While he looks for a new spot, Kaplan says he’s forming a coalition of local businesses and activist groups to see what can be done to help other small businesses facing similar displacement. He wants to address the displacement issue for businesses like his, which have made Eagle Rock the distinctive neighborhood that it is today.

Owl Talk, a longtime Eagle Rock staple selling clothing and accessories in a unit in the same building as READ Books, is facing a “more than double” rent increase, according to a post on their Instagram account.

Kaplan said he’s been in touch with the office of state Assemblywoman Jessica Caloza and wants to explore the possibility of introducing legislation to set up protections for small businesses like his, including rent-control measures or a vacancy tax for landlords. Kaplan said he also reached out to the office of state Sen. Maria Durazo.

By his count, Kaplan said there are about a dozen businesses within surrounding blocks that are at risk of closing their doors or have shuttered due to rent increases or other struggles.

When READ Books was founded during the Great Recession, Kaplan said he knew it was a longshot to open a bookstore at the same time so many were struggling to stay in business.

“It was kind of interesting to be doing something that neighborhoods needed. That was important to me growing up, that was important to my children, that was important to my wife growing up,” Kaplan said.

“And then somebody comes in and says, ‘We’re gonna over double your rent.”

Topline:

Frozen budget: Most of the city’s Bureau of Street Lighting budget comes from an assessment that people who own property illuminated by lights pay on their county property tax bill. The amount people pay depends on the kind of property they own and how much they benefit from lighting. A typical single-family home currently pays $53 annually, and in total, the assessments bring in about $45 million annually for the city to repair and maintain streetlights. Changing the amount the Bureau of Street Lighting gets from the assessment requires a vote among property owners who benefit from the lights.

Ballots: L.A. City Council’s vote gives city staff the green light to prepare and send out those ballots. Miguel Sangalang, who oversees the bureau, said at a committee meeting earlier this month that he expects to send out ballots by April 17. Notices about the ballots will be sent out prior to the ballots themselves.

Near unanimous vote: L.A. City Councilmember Monica Rodriguez was the only “No” vote Tuesday, saying she wanted to see a more current strategic plan for the bureau. Sangalang said the bureau developed a plan in 2022 that lays out how money will be spent. Councilmember Imelda Padilla was absent for the vote.

Vote count: Votes will be weighted according to the assessment amount. Basically, the more you’re asked to pay yearly to maintain streetlights, the more your vote will count. Ballots received before June 2 will be tabulated by the L.A. City Clerk.

How much more money: According to a report, the amount needed in assessments from property owners to meet the repair and maintenance needs of the city’s streetlighting in the next fiscal year is nearly $112 million.

Use of the money: Sangalang said at a March 11 committee meeting that the extra funds would be used to double the number of staff to handle repairs and procure solar streetlights, which don’t face the threat of copper wire theft. That would all potentially reduce the time it takes to repair simple fixes down to a week. Currently, city residents wait for months to see broken streetlights repaired. The assessment would come with a three-year auditing mechanism.