Connect with us
We’re experimenting with AI-generated content to help deliver information faster and more efficiently.
While we try to keep things accurate, this content is part of an ongoing experiment and may not always be reliable.
Please double-check important details — we’re not responsible for how the information is used.

Air Quality

Early-Life Exposure to Air and Light Pollution Linked to Increased Risk of Pediatric Thyroid Cancer

A new study suggests that early-life exposure to two widespread environmental pollutants — small particle air pollution and outdoor artificial light at night — could increase the risk of pediatric thyroid cancer. The study found a ‘significant association’ between exposure to ambient fine particulate matter air pollution (PM2.5) and outdoor artificial light at night (O-ALAN) and increased risk of papillary thyroid cancer in children and young adults up to 19 years old. The exposures occurred during the perinatal stage of life, typically defined as the time from when pregnancy occurs up to a year after birth.

Avatar photo

Published

on

The study, led by researchers at Yale University, has shed new light on the potential link between early-life exposure to air and light pollution and an increased risk of pediatric thyroid cancer. The findings are concerning, especially given how widespread these exposures are.

The research team analyzed data from 736 individuals diagnosed with papillary thyroid cancer before age 20 and 36,800 matched control participants based on birth year. Using advanced geospatial and satellite modeling, the team assessed individual-level exposure to fine particulate matter air pollution (PM2.5) and outdoor artificial light at night (O-ALAN). The results showed that for every 10 micrograms per cubic meter increase in PM2.5 exposure, the odds of developing thyroid cancer rose by 7% overall.

The strongest association between exposure and thyroid cancer was found among teenagers (15-19 years of age) and Hispanic children. Children born in areas with high levels of O-ALAN exposure were 23-25% more likely to develop thyroid cancer. The study’s lead author, Dr. Nicole Deziel, emphasized that these results are concerning and highlight the importance of addressing environmental factors in childhood cancer research.

Thyroid cancer is among the fastest-growing cancers among children and adolescents, yet we know very little about what causes it in this population. This study suggests that early-life exposure to PM2.5 and O-ALAN may play a role in this concerning trend. The impact of papillary thyroid cancer on children can be extensive, with survivors often suffering from aftereffects such as temperature dysregulation, headaches, physical disabilities, and mental fatigue.

Both PM2.5 and O-ALAN are considered environmental carcinogens that have been shown to disrupt the body’s endocrine system, including thyroid function, in animals and adults. The particles associated with PM2.5 pose a threat because they are small enough to enter the bloodstream and can interfere with hormone signaling, including those involved in regulating cancer pathways.

The current research raises important environmental justice concerns. Communities of color and lower-income populations are often disproportionately exposed to both air pollution and light pollution – inequities that may contribute to the higher thyroid cancer burden observed in Hispanic children.

In conclusion, this study highlights the need for more work to replicate and expand on these findings, ideally using improved exposure metrics and longitudinal designs. In the meantime, the results point to the critical importance of addressing environmental factors in childhood cancer research. Reducing exposures to air pollution and managing light pollution could be important steps in protecting children’s health.

Air Quality

New Computer Language Unlocks Hidden Pollutants in Environmental Data

Biologists and chemists have a new programming language to uncover previously unknown environmental pollutants at breakneck speed — without requiring them to code.

Avatar photo

Published

on

By

New Computer Language Unlocks Hidden Pollutants in Environmental Data

In a breakthrough for environmental science, researchers at UC Riverside have developed a programming language called Mass Query Language (MassQL) that enables biologists and chemists to quickly identify previously unknown pollutants in massive chemical datasets. This innovative tool has already helped scientists discover toxic compounds hidden in plain sight.

The power of MassQL lies in its ability to function like a search engine for mass spectrometry data, which is akin to a chemical fingerprint. By making it easier to search these vast datasets, the language allows researchers to find patterns that would otherwise require advanced programming skills. This has significant implications for environmental science, as scientists can now quickly identify pollutants in water, air, and other samples.

Developed by Mingxun Wang, an assistant professor of computer science at UC Riverside, MassQL was created to empower chemists and biologists without extensive coding experience to mine their data exactly how they want. This user-friendly approach has the potential to revolutionize environmental research, enabling scientists to quickly identify pollutants and develop strategies for removal.

One notable example of MassQL’s effectiveness is its use by Nina Zhao, a UCR postdoctoral student now at UC San Diego. She employed the language to sift through the entire world’s mass spectrometry data on water samples, searching for organophosphate esters – compounds commonly found in flame retardants. The results were staggering: MassQL pulled out thousands of measurements, including some chemicals that have not been previously described or catalogued.

These findings highlight the importance of MassQL in environmental science. By providing a powerful tool for identifying pollutants, researchers can now develop strategies to address these toxic compounds and protect human and animal health.

MassQL’s development was made possible by a collaborative effort involving over 70 scientists from various fields. This consensus-driven approach ensured that the language would be useful across multiple disciplines and real-life situations.

The potential applications of MassQL are vast, ranging from detecting fatty acids as markers of alcohol poisoning to identifying new drugs to combat antibiotic resistance. The research team has demonstrated the effectiveness of the language in a variety of scenarios, including finding forever chemicals on playgrounds.

As Wang notes, “I wanted to create one language that could handle multiple kinds of queries. And now we have. I’m excited to hear about the discoveries that could come from this.”

With MassQL, researchers can now quickly identify pollutants and develop strategies for removal, paving the way for a cleaner, healthier environment for all.

Continue Reading

Air Pollution

Cooling the City: How Reducing Urban Heat Release Can Help Control Local Rainfall

Stifling heat and sticky air often make summertime in the city uncomfortable. Due to the heat island effect, urban areas are significantly warmer than nearby rural areas, even at night. This, combined with more frequent extreme weather events caused by climate change, often render the city an unpleasant environment in the summer. Urbanization and climate change modify the thermal environment of urban areas, with an expectation that urban disasters from extremely hot weather and heavy rainfall will only become more severe. Mitigating potential damage involves reducing the intensity of the heat island effect and adapting to climate change. Motivated by this problem, a team of researchers set out to investigate how the reduction in urban heat release could help mitigate and control the rapid development of thunderstorms and local rainfall.

Avatar photo

Published

on

Cities are known for their sweltering summers, where the temperature can soar and make even the most mundane activities feel like torture. The heat island effect, which is caused by the concentration of buildings, pavement, and human activity in urban areas, makes cities significantly warmer than surrounding rural areas, even at night. This, combined with the increasing frequency of extreme weather events due to climate change, can make urban living uncomfortable and even hazardous.

A team of researchers from Kyoto University set out to investigate how reducing urban heat release could help mitigate and control local rainfall. They conducted numerical simulations using a mesoscale meteorological model, selecting a severe rainstorm in Osaka City on August 27, 2023, as their case study.

The results of the study showed that reducing sensible heat fluxes over urban areas can lead to the mitigation and control of local-scale rainfall on summer afternoons. The researchers found that by regulating urban heat release, they could reduce the intensity and amount of rainfall in Osaka City.

“We are excited to learn that regulating urban heat release has the potential to help us deal with urban weather-related issues,” said corresponding author Tetsuya Takemi.

The study’s findings have significant implications for cities around the world. As climate change continues to exacerbate extreme weather events, it is essential to find ways to mitigate their impact. Regulating urban heat release could be a key strategy in controlling local rainfall and reducing the risk of flooding and other hazards associated with severe weather.

The researchers are now using a high-resolution numerical model to investigate the impacts of heat release from individual buildings and streets in real cities. They plan to combine this modeling with the mesoscale meteorological model to quantitatively assess how to control local-scale rainfall with the reduction in urban heat release.

“We hope to further advance our study on urban extreme weather and contribute to further mitigation of these problems,” said Takemi.

Continue Reading

Air Quality

Harnessing Sunlight: A Breakthrough in Carbon Capture Technology

Current methods of capturing and releasing carbon are expensive and so energy-intensive they often require, counterproductively, the use of fossil fuels. Taking inspiration from plants, researchers have assembled a chemical process that can power carbon capture with an energy source that’s abundant, clean and free: sunlight.

Avatar photo

Published

on

The article has been rewritten for clarity and accessibility:

Harnessing Sunlight: A Breakthrough in Carbon Capture Technology

Scientists at Cornell University have developed a groundbreaking method to capture and release carbon dioxide using an energy source that’s abundant, clean, and free: sunlight. This innovative approach mimics the way plants store carbon, making it a game-changer in the fight against global warming.

The research team, led by Phillip Milner, associate professor of chemistry and chemical biology, has created a light-powered system that can separate carbon dioxide from industrial sources. They’ve used sunlight to make a stable enol molecule reactive enough to “grab” the carbon, and then driven an additional reaction to release the carbon dioxide for storage or reuse.

This is the first light-powered separation system for both carbon capture and release, and it has significant implications for reducing costs and net emissions in current methods of carbon capture. The team tested their system using flue samples from Cornell’s Combined Heat and Power Building, and it was successful in isolating carbon dioxide, even with trace contaminants present.

Milner is excited about the potential to remove carbon dioxide from air, which he believes is the most practical application. “Imagine going into the desert, you put up these panels that are sucking carbon dioxide out of the air and turning it into pure high-pressure carbon dioxide,” he said. This could then be put in a pipeline or converted into something on-site.

The research team is also exploring how this light-powered system could be applied to other gases, as separation drives 15% of global energy use. “There’s a lot of opportunity to reduce energy consumption by using light to drive these separations instead of electricity,” Milner said.

The study was supported by the National Science Foundation, the U.S. Department of Energy, the Carbontech Development Initiative, and Cornell Atkinson. This breakthrough has the potential to revolutionize carbon capture technology and make it more efficient, effective, and sustainable.

Continue Reading

Trending