Friday, August 09, 2024

 

How media impacts digital technology adoption in U.S. and Brazilian agriculture


University of Illinois College of Agricultural, Consumer and Environmental Sciences




URBANA, Ill. -- Digital technologies on the farm improve efficiency, productivity, and profits, but few farmers are taking full advantage of available tools. According to University of Illinois Urbana-Champaign researchers, communication channels play an important role in farmers’ decision-making process around technology adoption. A new study in the journal Agriculture looks at how traditional media, social media, and interpersonal meetings influence soybean farmers in the U.S. and Brazil, both world leaders in soybean production.

“Like everyone else, farmers are inundated with a constant flow of information, and new technologies appear all the time. However, the role of communication, as it impacts broader adoption decisions, is somewhat understudied,” said lead study author Joana Colussi, an instructor and postdoctoral research associate in the Department of Agricultural and Consumer Economics, part of the College of Agricultural, Consumer and Environmental Sciences (ACES) at Illinois. 

Colussi and her coauthors, faculty in ACES and at the Federal University of Rio Grande do Sul in Brazil, surveyed 801 soybean farmers in the biggest soybean growing regions of Brazil and the U.S. to learn what digital technologies they’re using, how beneficial they are, and what communication channels they rely on in deciding to adopt those tools.

As documented in previous studies, survey respondents in the U.S., on average, used more digital technologies — including autosteer, yield monitors, sprayer control systems, and more — than farmers in Brazil. Colussi says that pattern likely reflects the longer availability of precision technologies in the U.S., where most of them were developed.

In both locations, survey respondents felt digital technologies were influential in decision-making and beneficial for farming outcomes, especially regarding the potential for increased efficiency and profitability.

The researchers asked survey respondents to rate the influence of various communication channels on their adoption of digital technologies. In general, both Brazilian and U.S. farmers rated interpersonal meetings, such as field days, conferences, and conversations with Extension agents, retailers, and neighbors above mass media and social media. Brazilian respondents rated social media higher than U.S. farmers and higher than mass media channels.

“Even though social media is increasing in relevance, our results suggest interpersonal meetings are still very important,” Colussi said.

After examining the respondents’ self-reported patterns, the researchers performed a correlation analysis to reveal how much influence each communication channel had on actual adoption patterns in the survey sample.

“The self-reported results show the relevance producers attributed to each communication channel. On the other hand, correlations show the level of association between the technologies adopted and different communication channels analyzed. However, it is important to point out that these relationships between different variables do not imply causality,” Colussi said.

Correlations between communication channels and the decision to adopt various technologies differed in the two countries. For example, the use of yield monitors in Brazil correlated most strongly with LinkedIn, then conversations with neighbors, then cable television. In the U.S., yield monitors were most closely correlated with YouTube, followed by peer groups, then websites and blogs. 

LinkedIn was correlated with the adoption of digital technologies most often in Brazil, while YouTube was more influential in the U.S. Overall, the results showed that social media was more influential among Brazilian farmers than American respondents. 

Colussi says these patterns may reflect the demographic makeup of survey respondents. In general, the population matched the farming public in both regions, with Brazilian farmers skewing younger and farming more land than U.S. soybean growers.

“We have demographic differences in our sample that are consistent with the realities of agriculture in both countries,” Colussi said. “Younger people and older generations have different habits in terms of which communication channels they rely on. Regarding tech adoption, we know that older people are sometimes more traditional in terms of risk while younger farmers are sometimes more open to adopting new technologies.”

The study could inform the tactics tech companies use to reach potential customers and increase the overall uptake of digital tools. “With a clearer understanding of the role of communication in farmers’ technology adoption, it should be easier to address the persistent lack of understanding surrounding smart farming technologies in agriculture and consequent low adoption rates.”

It won’t be as simple as advertising on LinkedIn in Brazil or YouTube in the U.S. That’s because, Colussi says, technology adoption is a complex process that occurs over time.

“Let's say I'm a farmer, and I see information about a new chemical or a new machine show up on my Instagram or LinkedIn feed. I might think, ‘Hmm, what is that?’ It’s not likely I will decide to put my money in this machine solely because I saw it in a reel, but I might be curious. Then later, I might see it again while watching an advertisement on television or reading a magazine. It might reinforce that curiosity, and that might make me decide to talk with my neighbors, retailers, or specialists,” Colussi said. “It is important to understand that every channel plays a different role in the diffusion of an innovation.” 

The study, “A Comparative Study of the Influence of Communication on the Adoption of Digital Agriculture in the United States and Brazil,” is published in Agriculture [DOI: 10.3390/agriculture14071027]. Authors include Joana Colussi, Steve Sonka, Gary Schnitkey, Eric Morgan, and Antônio Padula.

YALE NEWS: Moving out: Mix of factors prompts owl monkeys to leave their parents



Yale University




New Haven, Conn. — There comes a point in the lives of young owl monkeys when they leave their parents and strike out on their own to find a mate. 

In a new study of a wild population of Azara’s owl monkeys in northern Argentina, Yale researchers reveal that a combination of social and ecological factors influences when these tree-dwelling monkeys peel away from their parents and siblings. 

According to their findings — which were based on 25 years of genetic and demographic data for several generations of owl monkeys, covering more than 330 individuals — none of the individuals, regardless of their sex, reproduced in the same group where they were born. In all cases, the researchers found, the animals either departed from their natal group or died before reproducing. 

The researchers also found that particular factors — such as the arrival of a stepparent, or seasonal changes in climate and the availability of food — affected the age and timing when individual owl monkeys left the group.    

“Owl monkeys are pair-living, serially monogamous, and both parents directly care for their offspring, which makes them very unusual among mammals,” said the lead author Margaret K. Corley, an associate research scientist in the Department of Ecology and Evolutionary Biology in Yale’s Faculty of Arts and Sciences (FAS). “Better understanding what influences owl monkeys’ decisions to leave their natal groups helps us to evaluate the evolution and functioning of their unique and interesting social structure.”    

The study, published on Aug. 7 in the journal Royal Society Open Sciencewas coauthored by Eduardo Fernandez-Duque, professor of anthropology in FAS. In 1996, Fernandez-Duque founded the Owl Monkey Project, a multi-disciplinary research site in the Argentinian Chaco. Research conducted at the project’s field site — one of the few places where owl monkeys are studied in the wild — provided the life history and genetic data used in the analysis.  

For the new study, the researchers evaluated two prominent hypotheses on the evolution of animal dispersal. One, known as the inbreeding avoidance hypothesis, posits that dispersal is driven by the risks of individuals mating with close kin if they remain in the natal group. The other, the competition avoidance hypothesis, suggests that owl monkeys leave their natal groups to avoid competing over potential mates and resources with other members of the group. 

If avoiding inbreeding drives dispersal, then owl monkeys would consistently disperse before or near sexual maturity, the researchers said. However, the study found that while some individuals dispersed around the time they reached sexual maturity, others remained with their groups up to two years after they were sexually mature. The finding demonstrates that inbreeding avoidance does not fully explain the timing or age of dispersal, but it does help to explain why all the monkeys dispersed before reproducing, the researchers explained.

The study also revealed that the replacement of a parent by a genetically unrelated adult — a stepparent — affects the age at which individuals disperse. Offspring delayed dispersal if their stepparent is of the opposite sex, the researchers found. 

“Older offspring will stick around longer when their stepparent is of the opposite sex and represents a potential mate. The situation puts them in competition with their genetic parent of the same sex,” Corley said. “If mating competition with kin were driving dispersal, we would expect to see offspring disperse sooner, rather than later, when their opposite-sex parent is replaced.”

The study found that owl monkey dispersals are highly seasonal; most occur in the spring when food is abundant and temperatures are relatively warm, indicating that individuals look to begin solitary ranging when conditions are mild and there is plenty to eat. The monkeys were less likely to disperse during the winter when food is less available, suggesting that resource competition within groups does not drive the timing of dispersal, the researchers concluded. 

“Owl monkeys are unusual in a lot of ways, and we have a lot left to learn about their social structure and behavior,” Corley said. “Building on this work, we’re examining how different habitats affect owl monkeys’ genetic structure and gene flow, which can help us to understand how deforestation or changes in habitat could influence their populations going forward.”    

Journal

Alaskan land eroding faster due to climate change


UTA scientist’s research shows how global warming is slowing formation of new permafrost


Peer-Reviewed Publication

University of Texas at Arlington

Nathan Brown 

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Nathan D. Brown, assistant professor of earth and environmental sciences at UT Arlington

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Credit: Photo courtesy UT Arlington




A new study out of The University of Texas at Arlington shows that frozen land in Alaska is eroding faster than it can be replaced due to climate change.

"In the Northern Hemisphere, much of the ground is permafrost, meaning it is frozen year-round. Permafrost is a delicate natural resource. If it is lost faster than it is regenerated, we endanger infrastructure and release carbon, which can warm the atmosphere,” said Nathan D. Brown, assistant professor of earth and environmental sciences at UT Arlington. “Under a warming climate, a major question is whether arctic rivers will erode permafrost in thawing riverbanks faster than permafrost can regenerate.”

It happens slowly, but all rivers naturally change their paths over time. Floods, earthquakes, vegetation growth, and wildlife are constantly at work shifting rivers, charting new paths for water, and depositing sediment where water once flowed.

A difference seen with Alaskan rivers is that the land on riverbanks can be permanently frozen. Called permafrost, it’s a mixture of soil, gravel and sand often bound together by ice. Permafrost is important because it holds large amounts of organic carbon, which is then released when it melts. This carbon can combine with oxygen to become carbon dioxide, a greenhouse gas that warms Earth’s atmosphere.

To better understand the fate of permafrost in a warming world, Dr. Brown—along with colleagues from the California Institute of Technology; Massachusetts Institute of Technology; University of California at Santa Barbara; Los Alamos National Laboratory; the University of Chicago; and the University of Pennsylvania—mapped and dated floodplain deposits, determined permafrost extent, and characterized vegetation along the Koyukuk River in Alaska to model how permafrost formation varies with air temperature. The Koyukuk is a 425-mile feeder stream of the Yukon River and the last major tributary to flow into the Yukon before it empties into the Bering Sea, the major waterway separating America and Russia.

In the American Geophysical Union journal AGU Advancesthe team reported that while new permafrost is developing along the Koyukuk River floodplain, it is not forming fast enough to replace what is disappearing due to rising temperatures.

“By dating these permafrost deposits, we found that permafrost formation in this region can take thousands of years,” said Brown. “Under a warming climate, permafrost formation is expected to take longer, while thawing permafrost riverbanks will become more susceptible to erosion. The net result will be loss of permafrost and contribution of carbon to the atmosphere.”

**Financial support for this research was provided by the National Science Foundation awards 2127442 and 2031532; Foster and Coco Stanback; the Linde Family; the Caltech Terrestrial Hazards Observation and Reporting Center; the Resnick Sustainability Institute; the National Defense Science and Engineering Graduate Fellowship; the Fannie and John Hertz Foundation Cohen/Jacobs and Stein Family Fellowship; and a Department of Energy Office of Science, Biological and Environmental Research Subsurface Biogeochemical Research Program Early Career award.**



Thursday, August 08, 2024

Alaska glacier outburst floods Juneau, damages more than 100 homes

 

Individuals vary in how air pollution impacts their mood



Statistical models show how daily air pollution is linked to a person’s affective states



PLOS

Affective Sensitivity to Air Pollution (ASAP): Person-specific associations between daily air pollution and affective states 

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Air pollution sunset at Keys View.

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Credit: Joshua Tree National Park, Flickr, CC0 (https://creativecommons.org/publicdomain/zero/1.0/)




Affective sensitivity to air pollution (ASAP) describes the extent to which affect, or mood, fluctuates in accordance with daily changes in air pollution, which can vary between individuals, according to a study published August 7, 2024 in the open-access journal PLOS ONE by Michelle Ng from Stanford University, USA, and colleagues.

Individuals’ sensitivity to climate hazards is a central component of their vulnerability to climate change. Building on known associations between air pollution exposure and adverse mental health outcomes, Michelle Ng and colleagues introduce the ASAP construct and illustrate its measurement using intensive longitudinal data. Specifically, the authors applied statistical models to intensive repeated measures data obtained from 150 US individuals for more than a year. The researchers used the models to examine whether and how individuals’ daily affective states fluctuate with the daily concentrations of outdoor air pollution in their county. They looked at two components of individuals’ affective state: arousal, the level of physiological activation, and valence, the positivity or negativity of their mood.

The work demonstrated the viability of using air pollution data obtained from local air quality monitors alongside psychological data to assess individuals’ ASAP. The researchers found that individuals’ affect arousal was lower than usual on days with higher than usual air pollution. Most importantly, there were substantial differences in ASAP between individuals.

The finding that individuals’ day-to-day affect may be disrupted by air pollution has important implications. For example, ASAP could help partially explain one of the mechanisms by which exposure to air pollution increases longer-term risk for adverse mental health outcomes, such as symptoms of anxiety and depression. In addition, if air pollution blunts an individual’s affect, the blunting might be associated with a lack of climate action.

The authors state that ASAP can be leveraged to better integrate affect and mental health in climate adaptation planning, for example to inform climate vulnerability assessments and design personalized interventions to support affect in the context of air pollution exposure.

The authors add: “According to the World Health Organization, 90% of the world’s population breathes air that does not meet its standards for livable air quality. We propose a person-specific construct called “affective sensitivity to air pollution” based on our finding that individuals differ significantly in how their affective states fluctuate in accordance with their daily exposures to air pollution.”

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In your coverage please use this URL to provide access to the freely available article in PLOS ONEhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0307430

Citation: Ng M, Gerstorf D, Conroy DE, Pincus AL, Ram N (2024) Affective Sensitivity to Air Pollution (ASAP): Person-specific associations between daily air pollution and affective states. PLoS ONE 19(8): e0307430. https://doi.org/10.1371/journal.pone.0307430

Author Countries: USA, Germany

Funding: This work was generously supported by the US National Institute on Aging (RC1-AG035645) and the US National Science Foundation Graduate Research Fellowship Program (DGE-1656518).

 

Study quantifies air pollution for NYC subway commuters


Economically disadvantaged and racial minority groups have the highest exposure to fine particular matter during their home to work commutes



PLOS

Exposure to fine particulate matter in the New York City subway system during home-work commute 

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Mean per capita exposure at census block level.

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Credit: Azad et al., 2024, PLOS ONE, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)




New York City subway commuters who are economically disadvantaged or belong to racial minority groups have the highest exposure to fine particulate matter during their commutes, according to a new study published August 7, 2024 in the open-access journal PLOS ONE by Shams Azad of New York University, USA.

Fine particulate matter (PM2.5) is a type of air pollution that, due to its small size, when inhaled by a person can enter the bloodstream. PM2.5 is known to cause short- and long-term health complications. For the last few decades, cities have promoted public transportation to reduce traffic congestion and improve ambient outdoor air quality. Subway systems reduce pollution by decreasing vehicles on the road; however, the quality of air inside subways is typically poor.

In the new study, the researchers combined data on home-to-work commute patterns for 3.1 million working commuters across four boroughs of New York City (Manhattan, Brooklyn, Queens, and the Bronx) with measured PM2.5 concentration levels on platforms and on trains.

Overall, the mean underground PM2.5 platform concentration was 139 ± 25 μg/m3, and the on-train concentration was 99 ± 21 μg/m3. These concentrations are significantly higher than the 15 μg/m3 mean 24-hour exposure guideline set by the World Health Organization – though the authors note that as a subway ride is shorter than an entire day, these results provide only baseline understanding of exposure on a commute as a notable portion of a person’s exposure during a 24 hour period.

The researchers quantified the disparities in exposure across racial and income groups, using census data on where people in different demographics tended to live and calculating their commute time and therefore their exposure accordingly. They found that people from lower-income working communities tend to have higher exposures, and that Black and Hispanic workers experience on average 35% and 23% higher PM2.5 exposure, respectively, compared to Asian and white workers. The authors suggest this may be because these groups typically have longer subway commutes to work as there are comparatively fewer job opportunities in areas where Black and Hispanic workers tend to reside. However, they note that this analysis can only draw general conclusions about populations as an average at census block level, rather than calculating individuals’ exposures.

The authors note that their research focuses only on the exposure resulting from subway journeys and also does not examine journeys other than the home-to-work commute. The authors plans to examine exposure for all individuals using the subway, in addition to those on commute. Nonetheless, they conclude that, because socioeconomic factors play a role in shaping the transportation choices of individuals, they likely subsequently impact their exposure to PM2.5 from subway travel.

The authors add: “Measurement of fine particulate matter in the NYC subway system show concentrations which are significantly higher than the exposure guidelines set by the Environmental Protection Agency and the World Health Organization. The primary source of the fine particles is the abrasion of the train car's metal wheels, breaks, and rails. This information was used to calculate the exposure of over 3 million New Yorkers, during home to work commute.”

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In your coverage please use this URL to provide access to the freely available article in PLOS ONEhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0307096

Citation: Azad S, Ferrer-Cid P, Ghandehari M (2024) Exposure to fine particulate matter in the New York City subway system during home-work commute. PLoS ONE 19(8): e0307096. https://doi.org/10.1371/journal.pone.0307096

Author Countries: USA, Spain

Funding: M.G. and S.A. received funding from National Science Foundation (award number 1856032), and C2SMART Center, with a grant from the U.S. Department of Transportation’s University Transportation Centers Program under Grant Number 69A3551747124. The U.S. Government assumes no liability for the contents or use thereof. The funders had no role in study design, data collection and analysis, decisions to publish, or preparation of the manuscript.

 

Detecting climate change using aerosols



Researchers propose a new metric using aerosols to understand changes in transboundary air pollution pathways due to climate changes



Chiba University

The image depicting transboundary air pollution pathways of aerosols, such as PM2.5 

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By analyzing long-term satellite observation data and using a new method that treats aerosols as tracers, researchers found that these pathways from China are shifting slightly northward due to global warming

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Credit: Shinichiro Kinoshita




Climate change is one of the most significant environmental challenges of present times, leading to extreme weather events, including droughts, forest fires, and floods. The primary driver for climate change is the release of greenhouse gases into the atmosphere due to human activities, which trap heat and raise Earth’s temperature. Aerosols (such as particulate matter, PM2.5) not only affect public health but also influence the Earth's climate by absorbing and scattering sunlight and altering cloud properties. Although future climate change predictions are being reported, it is possible that the impacts of climate change could be more severe than predicted. Therefore, it is necessary to detect climate change accurately and as early as possible.

Building on these insights, a research team from Japan, led by Professor Hitoshi Irie from the Center for Environmental Remote Sensing at Chiba University, utilized long-term observational data to study the effect of climate change on transboundary air pollution in the downwind area of China by using aerosols. They utilized a completely unique perspective on how aerosols impact climate and developed a new metric to detect climate change by considering aerosols as tracers.

The significance of this study lies in the fact that most of its results are derived from observational data. In natural sciences focused on Earth studies, the ultimate goal is to piece together highly accurate data obtained from observations to quantitatively understand the processes occurring on Earth and to pursue immutable truths. Therefore, the more observational data we have, the better. With the continued Earth observations by Japan's major Earth observation satellites (such as the GCOM series, GOSAT series, Himawari series, and ALOS series), we aim to complement these efforts with numerical simulations and data science methodologies to achieve a safe and secure global environment that mitigates the impacts of the climate crisis. explains Prof. Irie.

The research team included Ms. Ying Cai from the Graduate School of Science and Engineering, Chiba University, Dr. Alessandro Damiani from the Center for Climate Change Adaptation, National Institute for Environmental Studies, Dr. Syuichi Itahashi and Professor Toshihiko Takemura from the Research Institute for Applied Mechanics, Kyushu University, and Dr. Pradeep Khatri from Faculty of Science and Engineering, Soka University. Their study was made available online on May 23, 2024, and published in Science of The Total Environment on August 20, 2024.

China is a major contributor to air pollution in East Asia. The downwind area of China analyzed in this study is a unique open ocean area with minimal human interference yet an important zone of transboundary air pollution pathways, making it an ideal location for studying meteorological variations due to climate change.

In their study, the researchers analyzed aerosol optical depth (AOD) datasets derived from satellites, reanalysis datasets, and numerical simulations focused on the Pacific Ocean in the downwind area of China, over 19 years from 2003 to 2021. AOD, a measure of the amount of sunlight blocked by aerosols, is a key factor is analyzing aerosols and their impact on climate change.

The researchers developed a new metric called RAOD which utilized the potential of aerosols as tracers to evaluate the impact of climate change on transboundary air pollution pathways. Using RAOD the researchers were able to quantify significant temporal variations in aerosol transport. They discovered that long-term changes in RAOD due to climate change were outweighed by larger year-to-year variations in the meteorological field. Moreover, seasonal trends showed that aerosols moved west to east during spring and winter, and northward in summer. They concluded that the probability of aerosols from China to be transported far eastward was low, highlighting a shift in transboundary pollution pathways due to global warming. In this study the authors successfully detected climate change using long-term satellite observational data, in contrast to most existing studies that tracked transboundary air pollution using model simulations.

These results suggest that RAOD is a valuable metric for quantifying the long-term changes in transboundary air pollution pathways due to climate change. These results are particularly significant because most of them are derived from observational data,” says Prof. Irie, highlighting the importance of the study. Sharing the future implications of their study he concludes, “The effects of climate change could be more severe than currently predicted. This study will help verify climate change predictions from an unconventional perspective of ‘aerosol observation,’ enabling a more accurate understanding of climate change progression and implementation of rational countermeasures.”

In summary, this study demonstrates an innovative use of aerosols as climate change tracers, marking a significant step forward in the global effort to tackle the pressing issue of climate change.

About Professor Hitoshi Irie
Hitoshi Irie is currently a Professor at the Center for Environmental Remote Sensing (CEReS) at Chiba University. He obtained his M.S. and Ph.D. degrees from Nagoya University, Japan in 1999 and 2002, respectively. He has over 230 publications with over 6400 citations. At Chiba University, he also leads the Irie lab, which focuses on studying the effects of climate change. His research focuses on understanding the evolution of air pollution and climate change on a global scale.

 

Study reveals Canadian wildfires are affecting US air quality and raising health concerns


Rutgers researchers examined particulate matter from a June 2023 fire that triggered advisories for more than 100 million Americans in the Northeast.



Rutgers University



Climate-driven wildfire events are rapidly transferring harmful particulate matter containing toxic chemicals over long distances, compromising air quality in the New Jersey and New York City areas, according to Rutgers Health research.

Published in Environmental Science & Technology and to be featured on the cover of the journal’s next issue, the study assessed the physical and chemical characteristics of wildfire-related particulate matter and was the first to report this characterization from a climate-driven wildfire event in the densely populated Northeast region.

“Particulate matter is a leading environmental factor in the global burden of disease, with climate-driven wildfires being a major source,” said lead author Jose Guillermo "Memo" Cedeño Laurent, assistant professor at the Rutgers School of Public Health and director of the Rutgers Climate Adaptive and Restorative Environments Lab. “In the U.S., climate change-driven wildfires are reversing decade-long improvements in ambient air quality.”

The issue is pressing as there is an increasing body of evidence suggesting wildfire pollution is associated with worsened health impacts compared to non-wildfire pollution. Emerging evidence includes recent epidemiological studies linking the wildfire event to respiratory and cardiovascular emergency visits in New York City, although little is known about the mechanisms behind those impacts.

Using advanced physicochemical analysis of the particulate matter, researchers discovered large amounts of high molecular weight polycyclic aromatic hydrocarbons (PAHs), which are cancer-causing organic compounds, at the peak of the incident on June 7.

“We found very large concentrations of ultrafine and fine particulate matter during the peak of this wildfire, surpassing almost 10 times the national air quality standards and any previous record in more than five decades of air quality monitoring in the U.S. Northeast,” said Cedeño Laurent.

Senior author Philip Demokritou, Henry Rutgers Chair and professor in nanoscience and environmental engineering at the Rutgers School of Public Health and director of the Nanoscience and Advanced Materials Center (NAMC), said, “Such small particles have the ability to penetrate deep in the lung and can cause adverse health effects, as recently reported in the New York City area by epidemiological studies.”

Findings showed that the estimated potential inhalation dose of particulate matter (PM10) over a 72-hour exposure period was found to be more than 9 micrograms of particles deposited in the lungs.

“Our findings on the extremely high concentrations of ultrafine particles and their significant PAH content are proving to be invaluable in guiding several ongoing mechanistic studies at NAMC,” Cedeño Laurent said.

He added that these studies are investigating the effects of such particles on various organs, including the lungs by Reynold Panettieri and Joseph Jude at Rutgers Robert Wood Johnson Medical School and Bruce Levy and Yohannes Tesfaigzi at Brigham and Women’s Hospital Boston; the heart by the National Heart, Lung, and Blood Institute’s cardiovascular program; the brain by David Leong at the National University of Singapore; and the reproductive system by Shuo Xiao and Andrew Gow at the Rutgers Ernest Mario School of Pharmacy.

“Findings will advance our understanding of the physical and chemical characteristics of wildfire smoke and its impact on human health,” Cedeño Laurent said.

Researchers said their data underscores the importance of further investigating the physical and chemical processes of wildfire-related air pollution in comparison to non-wildfire pollution.

“Results from our study can be used by public health assessors to evaluate risk and develop strategies to help our communities,” Demokritou said, “especially those in areas already compromised by air pollution to adopt to the increasing wildfire phenomena.”

Additionally, Cedeño Laurent and Demokritou said their results offer novel insights into the evolving composition of particulate matter. Their analysis of the particulate matter’s optical properties will be featured in a companion study, led by Georgios Kelesidis, Rutgers School of Public Health affiliate, examining the effect that particulate matter from wildfires has on the Earth’s temperature and its further influence on climate change in densely populated cities.

Rutgers’ co-authors of the study include Georgios Kelesidis, Rutgers School of Public Health affiliate, post-doctoral fellows Hooman Parhizkar and Leonardo Calderon, and doctoral candidate Lila Bazina.