Tag

Aerosol Particles

All articles tagged with #aerosol particles

science1 year ago

"Unveiling the Impact of Supervolcano Eruptions on Global Climate"

New research from NASA's Goddard Institute for Space Studies and Columbia University suggests that extreme volcanic super-eruptions may not lead to as severe cooling of Earth's surface temperatures as previously estimated. Using advanced computer modeling, the study found that post-eruption cooling would likely not exceed 2.7 degrees Fahrenheit, challenging previous estimates ranging from 3.6 to 14 degrees Fahrenheit. The study focused on the influence of microscopic sulfur particles injected into the atmosphere and their impact on temperature changes. The findings raise questions about the potential for geoengineering to combat global warming and highlight the need for further research on volcanic aerosol particle sizes.

environment1 year ago

"Siberian Surprises: Uncovering Unexpected Aerosol Particle Formation"

University of Helsinki researchers have discovered extensive aerosol particle formation in the West Siberian taiga, challenging previous assumptions and linking it to heatwave conditions and a warming climate. This finding emphasizes the need for more research in boreal forests to inform climate modeling and policy decisions, as aerosol particles play a significant role in the Earth's cooling process and can impact climate through cloud formation and sunlight absorption.

science2 years ago

Key Factors for Airborne Virus Survival Uncovered by Scientists

Scientists at the University of Bristol have discovered critical factors that determine the survival of airborne viruses, including SARS-CoV-2. The research shows that cleaner air kills the virus significantly quicker and that opening a window may be more important than originally thought. The study also found that the high pH of exhaled aerosol droplets containing the virus is likely a major driver of the loss of infectiousness, and that each of the SARS-CoV-2 variants has different stabilities while airborne, correlated with their sensitivities to alkaline pH conditions. The findings could shape future mitigation strategies for new viruses.

health2 years ago

Elderly individuals emit more airborne particles, study finds.

Research has found that people over 60 years old emit unexpectedly high aerosolized respiratory particle emissions, with subjects aged 60 to 76 years old emitting over twice as many aerosol particles at rest and during exercise and five times as much aerosol volume. The study highlights that age significantly affects aerosol particle emission, and one size may not fit all when planning mitigation measures, especially for indoor fitness facilities or elder care facilities during heightened infection waves or future pandemics.