Science
Only a fraction of fire cleanup workers are protecting themselves against toxic debris. One community center is fighting to change that
A crew of 10, many sporting bright orange National Day Laborer Organizing Network T-shirts, funneled out of a Mexican restaurant on the edge of the Eaton burn scar.
Four months — to the day — after winds smashed a tree into a car next to NDLON’s Pasadena Community Job Center and soot blanketed the neighborhood, a University of Illinois Chicago professor, NDLON staff and volunteers sorted into cars under the midday sun and began discreetly traveling every road in fire-stricken Altadena.
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They watched nearly 250 crews — working long hours (for good pay), many under contract with the U.S. Army Corps of Engineers — remove the toxic debris covering the landscape in the wake of the fire.
Of the over 1,000 workers they surveyed in the burn area on May 7 and 9, only a quarter wore gloves, a fifth wore a protective mask, and a mere tenth donned full Tyvek suits, as required by California’s fire cleanup safety regulations, the group’s report, released Thursday, found.
For Pablo Alvarado, co-executive director and co-founder of NDLON, the results aren’t surprising.
NDLON — a Pasadena-based, national network of day laborer organizations, focused on improving the lives of day laborers, migrant and low-wage workers — has been responding to post-disaster worker safety issues for decades. Alvarado couldn’t help but remember the laborers he and NDLON supported during the cleanup following 9/11 over 20 years ago.
“Those workers are no longer alive. They died of cancer,” he said. “These are workers I’d known for decades — their sons, their cousins.”
Smoke rises from the burning twin towers of the World Trade Center after hijacked planes crashed into the towers, Sept. 11, 2001, in New York.
(Richard Drew / Associated Press)
As Alvarado watches a new generation of laborers get to work in the aftermath of the L.A. fires, his call to action is simple: “I just don’t want to see people dying.”
“We are committed to protecting all workers, regardless of immigration status,” a California Department of Industrial Relations spokesperson said in a statement to The Times.
The Department of Industrial Relations houses the Cal/OSHA program, which is responsible for enforcing worker safety requirements.
“Our outreach services participated in numerous events to ensure safety information is clear, accessible, and widely shared across impacted communities,” the spokesperson said. “Our enforcement team has also been actively providing compliance assistance. To date this team has provided nearly 500 site visits to educate both employers and employees.”
In a statement to The Times, the Army Corps said it mandates every corps employee and contractor to wear proper PPE.
“USACE’s number one priority is public health and safety — of our employees and contractors, and of the survivors and the community,” the corps said. “No workers are ever allowed on USACE sites without proper PPE.”
Yet NDLON has seen lax PPE use time and time again following disasters. Since 2001, NDLON has dispatched to countless hurricanes, floods and fires to support what the organization calls the “second responders” — the workers who wade through the rubble and rebuild communities after the devastation. Eaton was no different.
“We always respond around the country to floods, fires, no matter where it is,” said Cal Soto, workers’ rights director for NDLON, who helped survey workers in the burn area. For the Eaton fire, “we just happen to be literally in the shadow of it.”
When wildfires push into developed areas like Altadena, they chew through not just trees but also residents’ cars, plastics, batteries and household goods such as detergents and paint thinners, releasing hosts of toxic chemicals.
They include heavy metals such as lead and mercury, capable of damaging the nervous system and kidneys, as well as arsenic and nickel, known carcinogens. Organic materials like wood and oil that don’t fully burn can leave polycyclic aromatic hydrocarbons — or PAHs — which can harm the immune system and cause sickness in the short term and cancer in the long term.
Their primary opportunities to enter the body are through the inhalation of toxic air or through ingestion, after collecting on the hands of a person who then touches their face or uses their hands to eat. They can also, to a lesser extent, absorb directly through the skin.
Masks and disposable head-to-toe coverall suits act as a barrier against the dangerous contaminants.
The responsibility to ensure workers are using those protective barriers on the job ultimately falls on the employer, said Soto.
However, the breakdown of the safety standards can happen anywhere in the chain: The state’s OSHA division can fail to communicate rules to companies and enforce them. Employers can fail to educate their employees or provide the correct PPE. Workers themselves — despite it all — can choose to remove their PPE on long, hot days where a plastic suit and heavy duty mask feel suffocating.
“Sometimes it’s uncomfortable to wear all of that crap — particularly when it’s hot,” said Alvarado, who was a day laborer before founding NDLON. “Sometimes you feel like you’re suffocated.”
NDLON and its Pasadena Community Job Center, within hours of the Eaton fire, became a hub for the community’s response. Its volunteers handed out PPE, food and donations to workers and community members. By the end of January, it had hundreds of helping hands clearing Pasadena’s parks and streets of debris to assist overwhelmed city employees.
At the same time, day labor, construction and environmental remediation workers quickly rushed into the burn zone along with the donations, media attention and celebrities. Like clockwork, so did the labor safety violations.
How to keep a worker safe
In a dimly lit Pasadena church in late January, dozens of day laborers watched as Carlos Castillo played the role of an impatient boss, barking directions at three workers standing before them.
“Hurry up,” Castillo told them in Spanish, handing out boxes of protective suits and masks. One woman, standing in front of the room, fumbled with the straps of a respirator.
Debora Gonzalez, health and safety director NDLON, eyed the day laborer’s efforts before asking the crowd: “What is our friend missing?”
“Gloves!” someone called out.
Debora Gonzalez, middle, teaches fire cleanup workers safety training such as proper fitting and use of a respirator and proper wearing of protective clothing for cleaning disaster sites through the National Day Laborer Organizing Network in Pasadena on Jan. 31.
(Allen J. Schaben / Los Angeles Times)
Gonzalez and other volunteers called on the crowd, who quickly pointed out more problems with the equipment that the three workers had hastily donned. One had a mask that wasn’t sufficient for toxic cleanup; Gonzalez also pointed out that his beard would allow dust to infiltrate.
Castillo, a volunteer trainer and president of the D.C.-based immigrant worker-support nonprofit Trabajadores Unidos de Washington D.C., reminded them that when they are cleaning up an area after a wildfire, there could be a range of noxious chemicals in the ash. Gonzalez said she wanted them to be prepared.
“Tomorrow we’ll practice again,” she told them.
NDLON set up the free trainings for any day laborers interested in supporting fire recovery after some laborers began picking up work cleaning homes contaminated with smoke and ash near the fire zones.
Employers are supposed to provide protective equipment to workers and train them on how to use it, but “many times employers want to move quickly. They just want to get the job done and get the job done as quickly as possible,” said Nadia Marin-Molina, NDLON co-executive director. “Unfortunately, workers’ health goes by the wayside.”
As NDLON worked to educate day laborers, another group of workers moved in: The Army Corps of Engineers’ contractors and private debris removal crews. Alvarado quickly noticed that many of the corps’ workers were not wearing the required PPE.
Never one to let the “Day Laborer” in NDLON’s name limit his compassion, Alvarado reached out to a longtime collaborator, Nik Theodore, a University of Illinois Chicago professor who studies labor standards enforcement, to do something about it.
Neglected in the burn zone
A week later, Juan Pablo Orjuela, a labor justice organizer with NDLON, made sure the air was recirculating in the car as the team drove through the burn zone, surveying workers for the NDLON and University of Illinois Chicago report in early May. He watched an AllTrails map documenting their progress — they’d drive until they had traced every street in northeast Altadena.
Orjuela spotted an Army Corps crew working on a home and pulled the car to the curb. “Eight workers — no gloves, no Tyvek suit,” he said.
Nestor Alvarenga, a day laborer and volunteer with NDLON, sat in the back, tediously recording the number of workers, how many were wearing protective equipment and the site’s address into a spreadsheet on an iPad with a beefy black case.
The Army Corps said it requires all workers on-site to wear a hard hat, safety glasses and reflective vests. Workers in the ash footprint must also wear Tyvek suits, gloves and a respirator, the corps said.
One worker walked up to the car; Orjuela slowly lowered the window.
“Do you guys need anything?” the worker asked.
“No, we’re OK,” Orjuela said, “we’ll get out of your way.”
Debora Gonzalez, left, teaches fire cleanup workers safety training such as proper fitting and use of a respirator and proper wearing of protective clothing for cleaning disaster sites through the National Day Laborer Organizing Network in Pasadena on Jan. 31.
(Allen J. Schaben / Los Angeles Times)
Orjuela rolled up the window and pulled away. “I don’t really have to tell anybody what I’m doing,” he said. “I’m not being antagonistic, but you know … I’m just not saying anything to anybody.”
Theodore and NDLON hope the window survey, spanning 240 job sites with more than 1,000 total workers, can raise awareness for safety and health concerns in the burn areas, help educate workers, and put pressure on the government to more strictly enforce compliance.
“This was no small sample by any means,” Theodore said. “This was an attempt to be as comprehensive as possible and the patterns were clear.”
For Soto, the results are a clear sign that, first and foremost, employers are not upholding their responsibility to ensure their workers’ safety.
“It’s the responsibility of the employer,” he said. “I want to be clear that we have that expectation — that demand — always.”
Yet the window survey found even job sites where the PPE requirements are explicitly listed by the employer on a poster at the site, usage was still low. The reality, NDLON organizers said, is that the state must step in to help enforce the rules.
“I understand that the disaster was colossal, and I never expected the government to have the infrastructure to respond immediately,” said Alvarado, “but at this point, making sure workers have PPE, that’s a basic thing that the government should be doing.”
Former Times staff writer Emily Alpert Reyes contributed to this report.
Science
Lyrids Meteor Shower: How to Watch, Peak Time and Weather Forecast
Our universe might be chock-full of cosmic wonder, but you can observe only a fraction of astronomical phenomena with the naked eye. Meteor showers, natural fireworks that streak brightly across the night sky, are one of them.
The latest observable meteor shower will be the Lyrids, which has been active since April 14 and is forecast to continue through April 30. The shower reaches its peak April 21 to 22, or Tuesday night into Wednesday morning.
According to NASA, the Lyrids are one of the oldest known meteor showers, and have been enjoyed by stargazers for nearly 3,000 years. Their bright, speedy streaks are caused by the dusty debris from a comet named Thatcher. They appear to spring from the constellation Lyra, which right now can be seen in the eastern sky at night in the Northern Hemisphere.
The moon will be about 27 percent full tonight, appearing as a thick crescent in the sky, according to the American Meteor Society.
To get a hint at when to best watch for the Lyrids, you can use this tool, which relies on data from the Global Meteor Network. It shows fireball activity levels in real time.
And while you gaze at the heavens, keep an eye out for other stray meteors streaking across the night sky. Skywatchers are reporting that the amount of fireballs is double what is usually seen by this point in the year.
Where meteor showers come from
There is a chance you might see a meteor on any given night, but you are most likely to catch one during a shower. Meteor showers are caused by Earth passing through the rubble trailing a comet or asteroid as it swings around the sun. This debris, which can be as small as a grain of sand, leaves behind a glowing stream of light as it burns up in Earth’s atmosphere.
Meteor showers occur around the same time every year and can last for days or weeks. But there is only a small window when each shower is at its peak, which happens when Earth reaches the densest part of the cosmic debris. The peak is the best time to look for a shower. From our point of view on Earth, the meteors will appear to come from the same point in the sky.
The Perseid meteor shower, for example, peaks in mid-August from the constellation Perseus. The Geminids, which occur every December, radiate from the constellation Gemini.
How to watch a meteor shower
Michelle Nichols, the director of public observing at the Adler Planetarium in Chicago, recommends forgoing the use of telescopes or binoculars while watching a meteor shower.
“You just need your eyes and, ideally, a dark sky,” she said.
That’s because meteors can shoot across large swaths of the sky, so observing equipment can limit your field of view.
Some showers are strong enough to produce up to 100 streaks an hour, according to the American Meteor Society, though you probably won’t see that many.
“Almost everybody is under a light-polluted sky,” Ms. Nichols said. “You may think you’re under a dark sky, but in reality, even in a small town, you can have bright lights nearby.”
Planetariums, local astronomy clubs or even maps like this one can help you figure out where to go to escape excessive light. The best conditions for catching a meteor shower are a clear sky with no moon or cloud cover, sometime between midnight and sunrise. (Moonlight affects visibility in the same way as light pollution, washing out fainter sources of light in the sky.) Make sure to give your eyes at least 30 minutes to adjust to seeing in the dark.
Ms. Nichols also recommends wearing layers, even during the summer. “You’re going to be sitting there for quite a while, watching,” she said. “It’s going to get chilly, even in August.”
Bring a cup of cocoa or tea for even more warmth. Then lie back, scan the sky and enjoy the show.
Where weather is least likely to affect your view
Storm systems sweep across the country in early spring, and some will be obscuring skies tonight. But there will still be plenty of areas with clear skies, particularly in parts of the central United States.
“The best spot is going to be in the Upper Midwest,” said Rich Bann, a meteorologist with the Weather Prediction Center.
Minnesota, Wisconsin and Iowa will offer especially good sky-viewing weather and a beach on the Great Lakes could be a nice spot to look up at the stars.
But don’t expect to view the show from Chicago, as Illinois could see some thunderstorms. The weather will be better in the Northern and Central Plains, particularly the eastern Dakotas.
High, wispy clouds are expected over the Ohio and Tennessee Valleys and into parts of the Mid-Atlantic. But, Mr. Bann said, “you may be able to see some shooting stars through thin clouds.”
Clouds will be draped across much of the Southeast and the Northeast, though there could be some clearing in Florida, Georgia, the Carolinas and Virginia. Remember, the meteors could be visible all night long. If you look outside and see clouds, try again later.
Catching the spectacle will be challenging across much of the West, particularly from Washington into Northern California, where a storm system is bringing rain and snow. That system will move east overnight.
There are likely to be some pockets of clear skies at times across southern Nevada, northwest Arizona and southwest Utah, Mr. Bann said.
Amy Graff contributed reporting.
Science
FBI probes cases of missing or dead scientists, including four from the L.A. area
WASHINGTON — Amid growing national security concerns, the FBI said Tuesday that it has launched a broad investigation in the deaths or disappearances of at least 10 scientists and staff connected to highly sensitive research, including four from the Los Angeles area.
“The FBI is spearheading the effort to look for connections into the missing and deceased scientists. We are working with the Department of Energy, Department of War, and with our state and state and local law enforcement partners to find answers,” the agency said in a statement.
The FBI’s announcement comes after the House Oversight Committee announced that it would investigate reports of the disappearance and deaths of the scientists, sending letters seeking information from the agencies involved in the federal inquiry as well as NASA, which owns the Jet Propulsion Laboratory in La Cañada Flintridge, where three of the missing or dead scientists worked.
“If the reports are accurate, these deaths and disappearances may represent a grave threat to U.S. national security and to U.S. personnel with access to scientific secrets,” Reps. James Comer (R-Ky.), chairman of the committee, and Eric Burlison (R-Mo.) wrote in the letters.
President Trump told reporters last week that he had been briefed on the missing and dead scientists, which he described as “pretty serious stuff.” He said at the time that he expected answers on whether the deaths were connected “in the next week and a half.”
Michael David Hicks, who studied comets and asteroids at JPL, was the first of the scientists who disappeared or died. He died on July 30, 2023, at the age of 59. No cause of death was disclosed.
A year later, JPL physicist Frank Maiwald died at 61, with no cause of death disclosed.
Two other Los Angeles scientists are part of the string of deaths and disappearances.
On June 22, 2025, Monica Jacinto Reza, a materials scientist at JPL, disappeared while on a hike near Mt. Waterman in the San Gabriel Mountains.
On Feb. 16, Caltech astrophysicist Carl Grillmair was fatally shot on the porch of his Llano home. The Los Angeles County Sheriff’s department arrested Freddy Snyder, 29, in connection with the shooting. Snyder had been arrested in December on suspicion of trespassing on Grillmair’s property.
Snyder has been charged with murder.
There is no evidence at this point that the deaths and disappearances, which occurred over a span of four years, are connected.
A spokesperson for NASA, which owns JPL, said in a statement on X that the agency is “coordinating and cooperating with the relevant agencies in relation to the missing scientists.
“At this time, nothing related to NASA indicates a national security threat,” agency spokesperson Bethany Stevens wrote. “The agency is committed to transparency and will provide more information as able.”
Representatives from Caltech, which manages JPL, did not immediately respond to a request for comment.
Science
What’s in a Name? For These Snails, Legal Protection
The sun had barely risen over the Pacific Ocean when a small motorboat carrying a team of Indigenous artisans and Mexican biologists dropped anchor in a rocky cove near Bahías de Huatulco.
Mauro Habacuc Avendaño Luis, one of the craftsmen, was the first to wade to shore. With an agility belying his age, he struck out over the boulders exposed by low tide. Crouching on a slippery ledge pounded by surf, he reached inside a crevice between two rocks. There, lodged among the urchins, was a snail with a knobby gray shell the size of a walnut. The sight might not dazzle tourists who travel here to see humpback whales, but for Mr. Avendaño, 85, these drab little mollusks represent a way of life.
Marine snails in the genus Plicopurpura are sacred to the Mixtec people of Pinotepa de Don Luis, a small town in southwestern Oaxaca. Men like Mr. Avendaño have been sustainably “milking” them for radiant purple dye for at least 1,500 years. The color suffuses Mixtec textiles and spiritual beliefs. Called tixinda, it symbolizes fertility and death, as well as mythic ties between lunar cycles, women and the sea.
The future of these traditions — and the fate of the snails — are uncertain. The mollusks are subject to intense poaching pressure despite federal protections intended to protect them. Fishermen break them (and the other mollusks they eat) open and sell the meat to local restaurants. Tourists who comb the beaches pluck snails off the rocks and toss them aside.
A severe earthquake in 2020 thrust formerly submerged parts of their habitat above sea level, fatally tossing other mollusks in the snail’s food web to the air, and making once inaccessible places more available to poachers.
Decades ago, dense clusters of snails the size of doorknobs were easy to find, according to Mr. Avendaño. “Full of snails,” he said, sweeping a calloused, violet-stained hand across the coves. Now, most of the snails he finds are small, just over an inch, and yield only a few milliliters of dye.
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