particulates

Study ties particle pollution from wildfire smoke to 24,100 US deaths per year

Dorany Pineda, ASSOCIATED PRESS

Chronic exposure to pollution from wildfires has been linked to tens of thousands of deaths annually in the United States, according to a new study.

The paper, published Wednesday in the journal Science Advances, found that from 2006 to 2020, long-term exposure to tiny particulates from wildfire smoke contributed to an average of 24,100 deaths a year in the lower 48 states.

“Our message is: Wildfire smoke is very dangerous. It is an increasing threat to human health,” said Yaguang Wei, a study author and assistant professor in the department of environmental medicine at Icahn School of Medicine at Mount Sinai.

Other scientists who have studied the death toll from wildfire smoke were not surprised by the findings.

Read more at https://apnews.com/article/wildfires-smoke-deaths-climate-change-pm25-0791cd732dc63198e7cc30c9bbbd2f4a

Air, Forests, ,

UC Berkeley researchers find 75% of surveyed field workers labored during Sonoma County wildfires since 2017

Phil Barber, PRESS DEMOCRAT

Study adds to criticisms of county’s Ag Pass program as authors, trade group spar over interpretation

A newly published UC Berkeley study takes a highly critical view of Sonoma County’s Ag Pass program, adding to previous analyses that suggest the system, which allows agricultural workers into disaster evacuation zones when approved by the Sheriff’s Office, keeps local industry humming at the expense of worker health and safety.

Among the findings of a survey of more than 1,000 Sonoma County farmworkers presented in the article published Oct. 20 in the Journal of Agromedicine:

• 75% of respondents said they had done agricultural work during an active wildfire, or in the presence of wildfire smoke.

• 37% said their employers had not provided them with any personal protective equipment while they were working during fires.

• 66% said their health was affected by working during wildfires, with 83% of those citing eye irritation, 75% reporting headaches and 45% shortness of breath.

• 57% said they felt sick but continued to work because they couldn’t afford the lost income, and 51% said they did so because they were afraid of losing their jobs.

• Only 25% said they would feel safe gathering more information and signing up for the program through the Sheriff’s Office.

“Our research … identifies how the county developed a program that expanded access to agricultural workers but in practice primarily meets the needs of owners/operators,” wrote the study’s primary authors, Linda T. Gordon of the Berkeley Human Rights Center and Carly Hyland in the School of Public Health, in an accompanying white paper.

Read more at https://www.pressdemocrat.com/2025/10/24/berkeley-study-sonoma-agpass-farmworker-access-fires/

Agriculture/Food System, Air, , , , ,

New study: Air quality data from 2020 wildfires shows danger smoke poses for ag workers

Mary Callahan, PRESS DEMOCRAT

New research on the dangers agricultural laborers face as climate change contributes to larger, more frequent wildfires has rekindled criticism of Sonoma County policies that researchers say prioritize wine industry interests over worker health.

The study collected data from the 2020 North Bay wildfire season, when the lightning-sparked LNU Complex Fire and the Glass Fire burned for more than two smoke-filled months. The data show there were 17 days when workers were allowed onto vineyards and farms under the county “Ag Pass” program even though air quality in those areas was deemed unhealthy even for hardy individuals.

At the time, public agencies urged residents to reduce prolonged or heavy exertion because of the smoke, and mandatory evacuations were in force. However, agricultural workers, mostly Latino and Indigenous, were allowed into evacuation zones to pick grapes and perform other agricultural tasks as the air burned their eyes, throats and lungs, researchers said.

Fine particulate matter ― tiny particles that can be drawn deeply into the lungs and even the bloodstream ― remained elevated at night, when fire activity typically declines. Much of the grape harvest is carried out in the dark, in cooler temperatures, which further increased the risk of short- and long-term health effects, including higher mortality rates.

The study, published last week in the American Geophysical Union journal GeoHealth, is the latest in a series of papers and policy briefs focused on Sonoma County agricultural workers and the 2020 wildfires, which overlapped harvest season.

Read more at https://www.pressdemocrat.com/2024/08/23/new-study-air-quality-data-from-2020-wildfires-shows-danger-smoke-poses-for-ag-workers/

Agriculture/Food System, Air, , , , ,

Northern California requires oil refiners to slash air pollution

Laila Kearney, REUTERS

Northern California regulators on Wednesday directed two of the state’s largest oil refineries to slash their fine particulate air pollution, which will require costly modifications at the plants.

The 19-3 vote by the Bay Area Air Quality Management District governing board means refineries in the area, including Chevron Corp’s (CVX.N) Richmond plant and PBF Energy Inc’s (PBF.N) Martinez refinery, will have to install wet gas scrubbers to reduce pollution spewed by their gasoline-making fluid catalytic cracking units (FCCU) within five years.

The new requirement is expected to cut PBF and Chevron’s particulate matter emissions from its cat crackers by about 70%, the air quality district estimates.

Read more at https://www.reuters.com/business/energy/northern-california-air-board-requires-oil-refiners-slash-pollution-2021-07-21/

Air, Climate Change & Energy, , ,

Want cleaner air? Try using less deodorant

Kendra Pierre-Louis and Hiroko Tabuchi, NEW YORK TIMES

The deodorants, perfumes and soaps that keep us smelling good are fouling the air with a harmful type of pollution — at levels as high as emissions from today’s cars and trucks.

That’s the surprising finding of a study published Thursday in the journal Science. Researchers found that petroleum-based chemicals used in perfumes, paints and other consumer products can, taken together, emit as much air pollution in the form of volatile organic compounds, or V.O.C.s, as motor vehicles do.

The V.O.C.s interact with other particles in the air to create the building blocks of smog, namely ozone, which can trigger asthma and permanently scar the lungs, and another type of pollution known as PM2.5, fine particles that are linked to heart attacks, strokes and lung cancer.

Smog is generally associated with cars, but since the 1970s regulators have pushed automakers to invest in technologies that have substantially reduced V.O.C. emissions from automobiles. So the rising share of air pollution caused by things like pesticides and hair products is partly an effect of cars getting cleaner. But that breathing room has helped scientists see the invisible pollutants that arise from a spray of deodorant or a dollop of body lotion.

Read more at https://www.nytimes.com/2018/02/16/climate/perfume-pollution-smog.html

Air, Sustainable Living, , , , ,

Wildfire smoke continues to hurt air quality in Napa, Bay Area

Maria Sestito, NAPA VALLEY REGISTER

To check on local air quality, go to the EPA’s AirNow site: https://www.airnow.gov/

The fires in Napa County are mostly contained, but that doesn’t mean residents can put their respirators away just yet. Smoke from wildfires across the Bay Area – including Napa, Sonoma and Solano counties – are continuing to contaminate the air, making it harmful to even breathe.
The Bay Area Air Quality Management District issued a health advisory in addition to a Spare the Air alert for Wednesday and Thursday, and says that the conditions may continue for “days to come,” according to a press release.
In the past two weeks, parts of the Bay Area have experienced air quality levels that are historically bad, said Walter Wallace, air district spokesman. Although levels were at times “hazardous,” he said, they’re comparable to a normal day in Beijing, China.
Read more at: Wildfire smoke continues to hurt air quality in Napa, Bay Area | Local News | napavalleyregister.com

Air, , ,

Sonoma County gets high marks for good air 

Guy Kovner, THE PRESS DEMOCRAT
Sonoma County once again got straight-As on the American Lung Association’s latest air quality report card, which also cited California’s prolonged drought as a factor in fouling the state’s skies.
For the second year in a row, the county went without a single day of ozone or particle pollution exceeding federal standards, according to State of the Air 2015, the lung association’s annual report released Wednesday. Much of the credit can go to the breezy weather that typically blows away bad air.
Only three other coastal counties — Mendocino, Humboldt and Monterey — matched that perfect score, while Lake County came close with a single day of high ozone pollution, just as it did in last year’s report.
Read more via: Sonoma County gets high marks for good air | The Press Democrat

Air, Transportation, , ,
Scroll to Top