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Cigarette smoke has been studied for years, revealing a multitude of contaminants, including toxic metals. But exactly which of those metals can be traced to secondhand or thirdhand smoke? Solving this problem has been a challenge for the research community because many of the metals found in tobacco smoke could also come from industrial or naturally occurring pollutants contaminating indoor and... Read more

Jessica Granderson, a senior scientist at Lawrence Berkeley National Laboratory (Berkeley Lab), has been named director of the Building Technology and Urban Systems (BTUS) Division in the Energy Technologies Area. Her appointment is effective immediately and follows an extensive international search.“Jessica’s formidable experience of over 17 years at Berkeley Lab, her management skills,... Read more

Tony Nero, an early member of the then newly-formed Energy and Environment Division at Berkeley Lab, died on October 13, 2023 in Rehoboth Beach, DE, at age 81. At the time of his retirement in 1994, Nero was a Senior Staff Scientist and Deputy Program Leader for the Indoor Air Program. He was a graduate of Archmere Academy (Claymont, DE), received a bachelor's degree in physics from Fordham... Read more

In rooms where smoking has taken place regularly, tobacco’s imprint lingers on indoor surfaces, even long after regular smoking has stopped. The leftover residues, known as thirdhand smoke, can be a long-term source of indoor pollutants. New research from a team led by the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) zeroes in on carpets as an especially potent... Read more

Mary Ann Piette, whose research has been foundational to improving energy efficiency of existing buildings and integrating flexible building technologies with the electric grid, has been appointed Associate Laboratory Director (ALD) of the Energy Technologies Area (ETA). The appointment, which took effect August 2, follows a national search. Piette has served as the interim ALD of ETA since... Read more

In a first-of-its-kind study, scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have used specialized X-ray spectroscopy technology to analyze in exquisite detail the acid-base equilibria of additive-enhanced nicotine in simulated vaping aerosols. Their findings provide a foundation for better public health understanding of how recent e-cigarette... Read more

A building's indoor air quality (IAQ) plays a key role in the health, comfort, and performance of the people who spend countless hours in offices, homes, and other indoor spaces. From mold to cooking smoke to airborne viruses such as Covid-19 and the common cold, factors both seen and unseen come into play when determining IAQ. Experts at a recent conference hosted by the Johns Hopkins Center for... Read more

Berkeley Lab researchers reviewed evidence on using indoor engineering controls to reduce transmission risk Watch the related video on our youtube channel: youtu.be/fgNb6B9NZ2w Along with vaccines, masks, and testing, indoor air hygiene and building engineering controls will be key to slowing the spread of airborne, highly infectious variants of COVID-19. In a recent review in the journal Indoor... Read more

Some smells seem to seep into everything they touch. Tobacco smoke is one of the worst offenders. Thirdhand smoke refers to residual nicotine and other hazardous chemicals that contaminate the indoor environment after smoking. Think of the lingering smell you’ve probably encountered when handling the clothes of a person who smokes a pack a day, or when checking into a tidy but cigarette-friendly... Read more

Improving a school's energy performance can affect more than utility bills — it can also boost indoor air quality and learning outcomes, making the classrooms healthier for students and staff. A new campaign, Efficient and Healthy Schools, will provide practical guidance on ventilation upgrades that can increase energy efficiency, lower costs, and improve the air at K-12 schools nationwide.... Read more

Having good room ventilation to dilute and disperse indoor air pollutants has long been recognized, and with the COVID-19 pandemic its importance has become all the more heightened. But new experiments by indoor air researchers at Lawrence Berkeley National Laboratory (Berkeley Lab) show that certain circumstances will result in poor mixing of room air, meaning airborne contaminants may not be... Read more

As more U.S. states and countries legalize medical and recreational marijuana, consumers are increasingly turning to new types of products that avoid toxic smoke inhalation. Researchers at Berkeley Lab who previously identified potentially harmful emissions from electronic cigarettes are now identifying the potential health risks of vaping cannabis. When a person vapes marijuana, they are inhaling... Read more

In 10 years of studying thirdhand smoke, which is the toxic cigarette residue that clings to virtually all indoor surfaces for months or years, Berkeley Lab scientist Hugo Destaillats said the most frequent question he hears from the public is how to remediate property where a smoker once lived. Remediation companies frequently use ozone generators to eliminate odors from mold, tobacco, and fire... Read more

One day in March, the kids were there. The next day, there was no one. Then on a Saturday in August, a man came into an empty public school in suburban Boston carrying a container of dry ice, trying to figure out how to bring the students back to their desks.Since January, that man, Joseph Allen, a professor at Harvard’s School of Public Health, has been saying to anyone who will listen that... Read more

Air sealing and insulation, which are common elements of energy efficiency upgrade packages, come with a bonus: In addition to saving energy, they almost always cut dampness and mold. This latest research comes from a new publication from the U.S. Department of Energy's Lawrence Berkeley National Lab (Berkeley Lab). However, the paper also found that levels of some indoor air pollutants increased... Read more

Over the last few years of frequent and intense wildfire seasons, many parts of the U.S. have experienced hazardous air quality for days on end. At the same time a number of low-cost air quality monitors have come on the market, allowing consumers to check the pollutant levels in their own homes and neighborhoods. So, air quality scientists at Lawrence Berkeley National Laboratory (Berkeley Lab)... Read more

Heat waves are becoming a more regular occurrence across the country. Iain Walker, Leader of the Residential Building Systems Group at Berkeley Lab, has suggestions for how to weather them. Walker has more than 20 years’ experience as a building scientist and consultant on energy use and ventilation in residential buildings. Q. Is it more efficient or economical to keep my house cool all day or... Read more

Kirk R. Smith, a pioneering researcher in the deadly risks of indoor air pollution in the developing world and an early voice raising concern about the health consequences of climate change, died June 15 at the age of 73 at his Berkeley home, following a stroke and subsequent cardiac arrest. Smith was a professor of global environmental health at UC Berkeley’s School of Public Health and... Read more

Outstanding work in the field of residential ventilation -- which ultimately resulted in making millions of homes healthier and more comfortable -- has resulted in ETA's Residential Ventilation Team being honored with a Societal Impact Award by Berkeley Lab Director Mike Witherell. Brett Singer, Iain Walker, Brennan Less and Woody Delp (pictured, left to right), were recognized for their... Read more

Cutting-edge technologies from Lawrence Berkeley National Laboratory (Berkeley Lab) to detect radiation, make buildings more energy efficient, and accelerate neuroscience research were honored with R&D 100 Awards by R&D World magazine.Also recognized was Spack: A Package Manager for HPC Systems, a project led by Lawrence Livermore National Laboratory and which includes the National Energy... Read more

As part of a video series in which scientists at Lawrence Berkeley National Lab (Berkeley Lab) share their favorite periodic table elements, Hugo Destaillats offers his tribute to titanium. Destaillats, a chemical staff scientist/engineer in Berkeley Lab's Energy Technologies Area, notes titanium's use in a variety of everyday products, from eyeglasses to paint."In our group, we study the... Read more

Six researchers in the Energy Technologies Area have been recognized in the annual Director's Awards, which applauds outstanding scientific contributions at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).Tom McKone received the Berkeley Lab Prize, a lifetime achievement award; Nihar Shah, a research scientist/engineer, received a societal impact award; and the... Read more

A class of alternative tobacco product called heat-not-burn is quickly gaining in popularity across the globe. The product manufacturers claim that these battery-operated devices produce a “clean,” nicotine-laden vapor that contains fewer irritant and carcinogenic chemicals than a conventional cigarette – and are therefore a less harmful option for tobacco users. New research from the... Read more

Researchers at Lawrence Berkeley National Laboratory (Berkeley Lab) recently collaborated on the development of a new kind of roof shingle that will help reduce air pollution.The shingles’ photocatalytic granules, developed by 3M, were evaluated at Berkeley Lab during a three-year testing period to determine effectiveness and performance. The innovative methodology researchers developed during... Read more

Recent wildfire smoke has greatly impacted air quality in the Bay Area. Experts from the Energy Technologies Area (ETA) weigh in on tips and resources for the public. Brett Singer and Woody Delp are internationally recognized experts in the field of indoor air quality. Singer is a Principal Investigator, Staff Scientist and Leader in the Indoor Air group; Delp is a Research Engineer in the Indoor... Read more