Firearm injuries are now the leading cause of death among U.S. children and teens following a huge decadelong rise.

Analyses published on Oct. 5, 2023, by a research team in Boston found an 87% increase in firearm-involved fatalities among Americans under the age of 18 from 2011 to 2021.

Such an increase is obviously very concerning. But as scholars of adolescent health and firearm violence, we know there are many evidence-based steps that elected officials, health care professionals, community leaders, school administrators and parents can implement to help reverse this trend.

Trends in firearm deaths

The latest study is based on data from the Centers for Disease Control and Prevention. This data also provides information on whether firearm deaths were the result of homicide, suicide or unintentional shootings.

We have seen increases over time in all three areas. The steepest increase has been in the rate of firearm homicides, which doubled over the decade to 2021, reaching 2.1 deaths per 100,000 children and teens, or about 1,500 fatalities annually. Firearm-involved suicides have also increased steadily to 1.1 deaths per 100,000 children and teens in 2021.

Whereas the proportion of youth firearm-involved deaths due to unintentional shootings is typically highest during childhood, the share of gun deaths due to suicide peaks in adolescence.

In 2021, homicide was the most common form of firearm-involved deaths in almost every age group under the age of 18, with an exception of 12- and 13-year-olds, in which suicide was the leading cause of firearm fatalities.

Racial disparities in firearm deaths, which have been present for multiple generations, are also expanding, research shows.

Black children and teens are now dying from firearms at around 4.5 times the rate of their white peers.

This disparity is the consequence of structural factors, including the effects of systemic racism and economic disinvestment within many communities. Addressing racial disparities in firearm-involved deaths will require supporting communities and disrupting inequity by addressing long-term underfunding in Black communities and punitive policymaking.

More research is needed to fully understand why firearm-involved deaths are universally increasing across homicide, suicide and unintentional deaths. The COVID-19 pandemic and its exacerbation of social inequities and vulnerabilities likely explain some of these increases.

How to reduce gun fatalities

Reducing young people’s access to unsecured and loaded firearms can prevent firearm-involved deaths across all intents — including suicide, homicide and unintentional shootings.

Gun-owning parents can help by storing all firearms in a secure manner – such as in a locked gun safe or with a trigger or cable lock – and unloaded so they are not accessible to children or teens within the household.

Data shows that only one-third of firearm-owning households with teens in the U.S. currently store all their firearms unloaded and locked.

In addition to locking household firearms, parents should consider storing a firearm away from the home, such as in a gun shop or shooting range, or temporarily transferring ownership to a family member if they have a teen experiencing a mental health crisis.

Families, including those that don’t own firearms, should also consider how firearms are stored in homes where their children or teens may spend time, such as a grandparent’s or neighbor’s house.

Community-based and clinical programs that provide counseling on the importance of locked storage and provide free devices are effective in improving the ways people store their firearms. In addition, researchers have found that states with child access prevention laws, which impose criminal liability on adults for negligently stored firearms, are associated with lower rates of child and teen firearm deaths.

Reducing the number of young people who carry and use firearms in risky ways is another key step to prevent firearm deaths among children and teens. Existing hospital- and community-based prevention services support this work by identifying and enrolling youth at risk in programs that reduce violence involvement, the carrying of firearms and risky firearm behaviors.

While researchers are currently testing such programs to understand how well they work, early findings suggest that the most promising programs include a combination of reducing risky behaviors – through, for example, nonviolent conflict resolution; enhancing youth engagement in pro-social activities and with positive mentors; and supporting youth mental health.

Support structures

In addition to ongoing focused prevention efforts, hospital-, school- and community-based interventions that support youth in advancing social, emotional, mental, physical and financial health can reduce the risk of firearm deaths. Such measures include both creating opportunities for children and teens – building playgrounds, establishing youth programs and providing access to the arts and green spaces – and community-level improvements, such as improved public transportation, economic opportunities, environmental safety conditions and affordable and quality housing. Allocating resources toward these initiatives is an investment in every community member’s safety.

Over the past decade, we have seen an 87% increase in firearm-involved fatalities among children and teens in the United States. But we also have the strategies and tools to stop and reverse this troubling trend.

Rebeccah Sokol, Assistant Professor of Social Work, University of Michigan; Marc A. Zimmerman, Professor of Public Health, University of Michigan, and Patrick Carter, Co-Director, Institute for Firearm Injury Prevention; Associate Professor of Emergency Medicine, University of Michigan

This article is republished from The Conversation under a Creative Commons license. Read the original article.

When wildfire smoke turns the air brown and hazy, you might think about heading indoors with the windows closed, running an air purifier or even wearing a mask. These are all good strategies to reduce exposure to the particles in wildfire smoke, but smoky air is also filled with potentially harmful gases. Those gases can get into buildings and remain in the walls and floors for weeks.

Getting rid of these gases isn’t as simple as turning on an air purifier or opening a window on a clear day.

In a new study published in the journal Science Advances, colleagues and I tracked the life of these gases in a home exposed to wildfire smoke. We also found that the best way to get rid of the risk is among the simplest: start cleaning.

The challenge of smoke particles and gases

In December 2021, several of my friends and colleagues were affected by the Marshall Fire that burned about 1,000 homes in Boulder County, Colorado. The “lucky” ones, whose homes were still standing, asked me what they should do to clean their houses. I am an atmospheric and indoor chemist, so I started looking into the published research, but I found very few studies on what happens after a building is exposed to smoke.

What scientists did know was that smoke particles end up on indoor surfaces – floors, walls, ceilings. We knew that air filters could remove particles from the air. And colleagues and I were just beginning to understand that volatile organic compounds, which are traditionally thought to stay in the air, could actually stick to surfaces inside a home and build up reservoirs – invisible pools of organic molecules that can contribute to the air chemistry inside the house.

Volatile organic compounds, or VOCs, are compounds that easily become gases at room temperature. They include everything from limonene in lemons to benzene in gasoline. VOCs aren’t always hazardous to human health, but many VOCs in smoke are. I started to wonder whether the VOCs in wildfire smoke could also stick to the surfaces of a house.

Tracking lingering risks in a test house

I worked with researchers from across the U.S. and Canada to explore this problem during the Chemical Assessment of Surfaces and Air, or CASA, study in 2022. We built on HOMEChem, a previous study in which we looked at how cooking, cleaning and occupancy could change indoor air.

In CASA, we studied what happens when pollutants and chemicals get inside our homes – pesticides, smog and even wood smoke.

Using a cocktail smoker and wood chips, we created a surprisingly chemically accurate proxy for wildfire smoke and released small doses into a test house built by the National Institute of Standards and Technology. NIST’s house allowed us to conduct controlled chemistry experiments in a real-world setting.

We even aged the smoke in a large bag with ozone to simulate what happens when smoke travels long distances, like the smoke from Canadian wildfires that moved into the U.S. in the summer of 2023. Smoke chemistry changes as it travels: Particles become more oxidized and brown, while VOCs break down and the smoke loses its distinctive smell.

How VOCs behave in your home

What we found in CASA was intriguing. While smoke particles quickly settled on indoor surfaces, VOCs were more insidious.

At first, the house took up these smoke VOCs – on floors, walls and building surfaces. But once the initial smoke cleared, the house would slowly release those VOCs back out over the next hours, days or even months, depending on the type of VOC.

This release is what we call a partitioning process: During the smoke event, individual VOC molecules in the air attach to indoor surfaces with weak chemical bonds. The process is called adsorption. As smoke clears and the air cleans out, the bonds can break, and molecules “desorb” back out into the air.

We could watch this partitioning happen in the air by measuring smoke VOC concentrations. On surfaces, we could measure the weight of smoke VOCs that deposited on very sensitive balances and then were slowly released.

Overall, we concluded that this surface reservoir allows smoke VOCs to linger indoors, meaning that people are exposed to them not just during the major smoke event but also long after.

Why worry about VOCs?

Smoke VOCs include well-known carcinogens, and high levels of exposure can induce respiratory and health problems.

While smoke VOC concentrations in our test house decreased with time, they remained persistently elevated above normal levels.

Given that VOC concentrations from other sources, such as cooking and cleaning, can already be high enough in homes to harm health, this additional long-term exposure source from smoke could be important. Further toxicology studies will be needed to determine the significance of its health effects.

How to clean up when smoke gets in

So, what can you do to remove these lingering smoke gases?

We found that air purifiers can remove only some of the VOCs that are in the air – they can’t clean the VOCs on your floors or in your walls. They also work only when they’re running, and even then, air purifiers don’t work particularly well to reduce VOCs.

Opening windows to ventilate will clean the air, if it isn’t smoggy or smoky outside. But as soon as we closed windows and doors, smoke VOCs started to bleed off the surface reservoirs and into the air again, resulting in an elevated, near-constant concentration.

We realized that to permanently remove those smoke VOCs, we had to physically remove them from surfaces.

The good news is that cleaning surfaces by vacuuming, dusting and mopping with a commercial, nonbleach solution did the trick. While some remediation companies may do this surface cleaning for you after extreme exposures, surface cleaning after any smoke event – like Canadian wildfire smoke drifting into homes in 2023 – should effectively and permanently reduced smoke VOC levels indoors.

Of course, we could reach only a certain number of surfaces – it’s hard to vacuum the ceiling! That meant that surface cleaning improved but didn’t eliminate smoke VOC levels in the house. But our study at least provides a path forward for cleaning indoor spaces affected by air pollutants, whether from wildfires, chemical spills or other events.

With wildfires becoming more frequent, surface cleaning can be an easy, cheap and effective way to improve indoor air quality.

Delphine Farmer, Professor of Chemistry, Colorado State University

This article is republished from The Conversation under a Creative Commons license. Read the original article.