Lifestyle
LA fires: Long-term exposure to wildfire smoke is poorly understood − and a growing risk
Wildfires in Los Angeles expose millions to harmful smoke containing toxic chemicals, increasing the need for understanding long-term health impacts.
Luke Montrose, Colorado State University
Millions of people across the Los Angeles area are being exposed to wildfire smoke as fires burn through homes and vehicles. The fires in January 2025 have burned thousands of structures, along with the building materials, furniture, paints, plastics and electronics inside them.
When materials like these burn, they can release toxic chemicals with the potential to harm people breathing the air downwind.
A 2023 study of smoke from fires in the wildland-urban interface – areas where urban neighborhoods bleed into the wildlands – found it contained a vast array of chemicals harmful to humans, including hydrogen chloride, polycyclic aromatic hydrocarbons, dioxins and a range of toxic organic compounds, including known carcinogens such as benzene, as well as toluene, xylenes, styrene and formaldehyde. The researchers also found metals in the smoke, including lead, chromium, cadmium and arsenic, which are known to affect several body systems, such as the brain, liver, kidney, skin and lungs.
The short-term effects of exposure to smoke like this can trigger asthma attacks and cause lung and cardiac problems.
But smoke can also have long-term effects, and those are less well understood. As an environmental toxicologist who focuses on wildfire smoke health effects, I, along with many of my colleagues, am increasingly concerned about the impact of long-term and repeated exposures to wildfire smoke that more people are now facing.
Long-term smoke exposure is increasing
Nationwide, the acreage burned in wildfires in the U.S. has nearly doubled each decade since 1990. That is changing how people are exposed to wildfire smoke.
Communities have found themselves blanketed in smoke for days and weeks at a time increasingly often. In 2023, massive wildfires in Canada repeatedly spread thick smoke into many U.S. communities. Controlled burns, which firefighters set to clear away flammable brush and reduce the severity of future wildfires, also add smoke to the air.
Wildfire smoke is now the leading source of PM2.5 – microscopic particulate matter than can penetrate into the lungs – in the western U.S.
This growing exposure increases the need to understand the long-term consequences of living and working in wildfire-risk areas.
Dose, duration and frequency matter
When scientists study the health risks of wildfire smoke, they tend to use analysis methods that were developed to assess health effects caused by low-level, chronic, urban air pollution exposures – picture car exhaust or smokestack emissions. However, these approaches fail to capture the dynamic and intense nature of wildfire smoke.
Researchers suspect there are differing consequences for people exposed to smoke at varying intensities and durations. Repeated exposure to wildfire smoke may also have compounding health effects over time.
To study the long-term impact of wildfire smoke, scientists need to know how much smoke people were exposed to, for how long and how often. That’s not an experiment anyone can conduct on humans in a lab, but the data can be gathered from communities being affected by wildfires.
Right now, however, this kind of data collection is rare.
Most studies that have explored long-term exposure, such as its impact on dementia or pregnancy, have used an average exposure over years rather than detailed data on exposures.
A few have focused on specific events. For example, a study of residents who had been exposed to six weeks of smoke during the 2017 Rice Ridge Fire near Seeley Lake, Montana, found their lung function was significantly reduced for at least two years after the fire. That was a forest fire, and while burning vegetation is bad, it’s generally thought to be less toxic than burning buildings.
Thinking differently about smoke exposure
Improving understanding of the long-term effects of wildfire smoke will require thinking differently about smoke.
If epidemiologists can begin clearly defining the negative health effects from wildfire smoke exposure in terms of dose, duration and frequency in their studies, taking into account the dynamic and episodic nature, then toxicologists can model these human experiences in animal experiments.
These experiments would have the potential to improve the understanding of the long-term health risks and then help scientists develop effective guidelines and strategies to mitigate harmful exposures.
Luke Montrose, Assistant Professor of Environmental and Radiological Health Sciences, Colorado State University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Lifestyle
How to Practice Thoughtful Grief Etiquette Online
Grief experts advise caution in sharing condolences and loss-related information on social media, emphasizing the importance of prioritizing the grieving family’s needs. Thoughtful posting practices include waiting for family approval, reaching out privately first, and avoiding speculation about the cause of death. Compassionate communication is essential in these sensitive situations.
Last Updated on March 31, 2026 by Daily News Staff
(Feature Impact) News of a death can spread online in seconds – often before families have notified close family members privately. That’s why grief experts urge people to rethink how they share condolences, tributes and loss-related information on social media, particularly during the winter months when grief can feel especially isolating.
“Grief etiquette is about putting the needs of the grieving family first, not our urge to say something publicly,” said Dr. Camelia L. Clarke, National Funeral Directors Association (NFDA) spokesperson, funeral director and grief educator with nearly 30 years of experience. “Just because information can be shared instantly doesn’t mean it should be.”
Social media has become a common place for sharing condolences, tributes and memories. However, grief experts caution that, without thoughtful consideration, online posts can unintentionally cause harm. Knowing when to post, what to say and when to remain silent can make a meaningful difference for families experiencing loss.
Consider this advice from the experts at the NFDA.
Grief Etiquette in the Digital Age
Grief etiquette refers to the unspoken guidelines for how individuals acknowledge death, loss and mourning, particularly online.
According to Clarke, one of the most important principles is restraint.
“When a death is shared online too quickly, families can feel exposed and overwhelmed at a moment when they’re still processing the loss themselves,” she said. “Waiting is an act of compassion.”
Best Practices for Posting About Loss Online
As social media continues to play a role in modern mourning, grief professionals encourage users to pause before posting and consider a few key guidelines:
- Let the family lead. Don’t post about a death until the immediate family has made it public.
- Ask permission. Obtain consent before sharing photos, stories or tributes.
- Reach out privately first. A direct message, call or handwritten note can be more meaningful than a public comment.
- Avoid speculation. Don’t ask about or share details regarding the cause of death.
- Offer ongoing support. Grief extends far beyond the first days or weeks after a loss.
What to Say (and Avoid)
When expressing condolences online, experts recommend simplicity, sincerity and sensitivity. Messages that acknowledge loss without attempting to explain or minimize it are often the most supportive.
Helpful phrases include:
- “I’m sorry for your loss.”
- “Thinking of you and your family.”
- “I’m here if you want to talk or need anything.”
By contrast, well-meaning cliches can unintentionally cause harm. Phrases such as “They’re in a better place” or “Everything happens for a reason” may reflect the speaker’s beliefs, but they can feel dismissive to someone grieving.
“Grieving people don’t need answers – they need presence,” Clarke said. “Listening matters more than saying the perfect thing.”
Resources for Families and Friends
As digital spaces continue to shape how people communicate during life’s most difficult moments, experts agree empathy, patience and respect remain timeless.
“Grief is deeply personal,” Clarke said. “When we slow down and lead with compassion, we honor both the person who has died and those who are left to grieve.”
To learn more about how to support a grieving person and access free, expert-reviewed resources for navigating grief, expressing condolences and supporting loved ones before, during and after a loss, visit RememberingALife.com, an initiative of the NFDA.
Photo courtesy of Shutterstock
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Travel Advisory
Traveling to Mexico this spring? Here’s what to know about current advisories
Traveling to Mexico this spring? Visitors should be aware of state-specific travel advisories, as safety concerns in one region do not affect major resort areas like Cancun and Los Cabos, currently rated Level 2, which encourages increased caution. Monitoring official updates is essential for informed travel decisions amidst evolving conditions.
Last Updated on March 30, 2026 by Daily News Staff
Traveling to Mexico this spring? Here’s what to know about current advisories
(Tiffany Miller for ALG Vacations) For some travelers counting down to spring break, recent headlines about violence in parts of Mexico have sparked a new question: Should I cancel my trip? Travel advisors say they are seeing a surge in calls and emails from clients trying to determine whether developments in one region affect major resort areas elsewhere.
The questions follow several days of unrest in parts of Mexico after security operations targeting organized crime leaders prompted temporary flight disruptions and shelter-in-place guidance for U.S. government personnel in areas including Puerto Vallarta and Guadalajara. In this article, ALG Vacations explains what current travel advisories mean for spring break travelers heading to Mexico.
The U.S. State Department evaluates Mexico state by state, not as a single destination, and advisory levels vary by region. Many major beach destinations, including Cancun, Riviera Maya, Tulum and Los Cabos, are currently under a Level 2 advisory, which encourages travelers to exercise increased caution. It does not discourage travel.
Part of the confusion stems from geography. Puerto Vallarta, on the Pacific coast, is roughly 1,300 miles from Cancun and the Riviera Maya on the Caribbean side, about the distance between New York and Miami. Because advisories are assigned state by state, developments in one region do not automatically alter another.
In recent days, that uncertainty has translated into additional inquiries about whether specific resort areas are experiencing disruptions. U.S. Embassy security alerts issued this week indicate that temporary shelter-in-place guidance affecting Puerto Vallarta was lifted and that flight operations resumed. The advisory level for the Mexican state of Quintana Roo remains unchanged.
Some clients are asking about alternatives, advisors say, but many are continuing with their plans after reviewing official updates. Travel patterns often shift in response to breaking headlines, they add, before stabilizing as clearer information becomes available.
The State Department assigns travel advisories on a four-tier scale ranging from Level 1, exercise normal precautions, to Level 4, do not travel. While Level 2 encourages increased awareness, Level 3 and Level 4 carry stronger language discouraging or restricting travel.
Advisories are reviewed regularly and can be updated as conditions evolve. The State Department’s Mexico advisory page breaks down conditions by state, reflecting the country’s federal structure rather than issuing a single national designation. Travelers can also enroll in the State Department’s Smart Traveler Enrollment Program, which provides real-time security updates and allows U.S. officials to contact citizens in an emergency.
Embassy notices state that airports, hotels and tourism services in Quintana Roo are operating normally. Security conditions across Mexico vary widely by state, with some regions carrying higher advisories and others designated Level 1. Most destinations popular with U.S. travelers are currently classified as Level 2.
As spring break approaches, advisors say informed decision-making depends on reviewing the advisories assigned to a specific destination and monitoring official updates, rather than reacting to national headlines alone. Travel decisions ultimately depend on individual comfort levels, they add, but advisory levels are assigned regionally and should be evaluated accordingly.
Photo courtesy of Shutterstock
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home gardening
Grow Healthier Plants (and Use Less Water) by Improving Your Soil
Biochar enhances soil health by improving water retention and nutrient availability, supporting stronger plant growth. It offers a sustainable solution by sequestering carbon and can also be used for composting and livestock bedding.
(Feature Impact) Almost every gardener knows the frustration: One corner of the garden bursts with life while another struggles to hang on. Flowers are slow to open, vegetables disappoint and the soil seems to drink up water and ask for more.
However, seasoned gardeners know the difference between a struggling garden and a thriving one almost always comes down to what’s beneath the surface.
Success Runs Soil Deep
The change in seasons can leave soil compacted and depleted, so spending some time giving it a boost can set the stage for strong, healthy plants. It may also be easier than many gardeners think to give soil the help it needs. Blending in amendments like biochar improves soil health, helps retain water and locks in nutrients.
An easy-to-use yet powerful conditioner that helps balance soil pH, Wakefield BioChar boosts soil fertility and supports stronger, healthier plant growth. Once it’s mixed into soil, biochar becomes a powerhouse worker. It holds onto water like a sponge, slowly releasing and making the water accessible, so plants continually receive moisture and gardeners need to water less. It also makes nutrients more available to plants, resulting in healthier gardens and greener lawns.
An Easy-to-Use Boost
When planting in the garden or pots, biochar should make up approximately 10% of the soil mix. If you’re setting up a garden bed, mix it into the soil to a depth of 4-6 inches (1 cubic foot is plenty for a 4-by-8-foot garden bed). For trees and shrubs, adding biochar directly to the roots helps them get off to a strong start and supports healthy growth.
It’s also a natural way to improve a lawn’s look and performance. To add biochar to your lawn to prepare for warm weather, spread it evenly across the grass, either by hand or with a broadcast spreader for larger areas. Aim for a thin, even layer to ensure all parts of your lawn benefit from its properties, improving long-term soil health. For newly planted lawns, mix 1 cubic foot of biochar into every 100 square feet of soil, making sure it penetrates 2-4 inches deep.
No matter where you use biochar, water regularly for the first week to activate its benefits. Watering helps biochar settle into the soil and start working, as its porous structure holds moisture, helping keep gardens and lawns hydrated.
Sustainable from the Ground Up
Not only does biochar deeply nourish your garden or lawn, it also helps create a more sustainable environment for years to come. It’s made by heating natural materials, such as organic wood waste, in a way that stores carbon rather than releasing it into the atmosphere as greenhouse gases.
The process – called pyrolysis – locks carbon into a stable form that doesn’t break down as quickly as mulch or compost and transforms into a light, porous material that stays active, season after season, to ensure nutrient-rich soil for years to come.
Beyond the Lawn
It isn’t just for providing plants with healthier soil. Bring biochar along on camping trips, as it also works wellfor composting toilets and has the added benefit of controlling odors and absorbing waste, making it a sustainable option that can be composted afterward.
It can also be used as livestock bedding as it absorbs liquids, neutralizes odors and can be mixed with manure to create a more nutrient-rich compost for plants and crops.
Learn more about planting healthy gardens and green spaces at WakefieldBiochar.com/grow.
Photo courtesy of Shutterstock (woman gardening)
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Wakefield BioChar
