Articles tagged with Smog
Researchers find that naturally occurring atmospheric chemicals react with sunlight to break down smog and pollutants, producing more OH radicals than previously thought. This discovery could improve our understanding of how the atmosphere works and potentially lead to better models for predicting pollution.
Scientists have found a previously unknown way in which the atmosphere produces substances that break down smog and pollutants into less harmful components. This discovery could lead to a better understanding of how the atmosphere cleanses itself and may improve atmospheric models.
Researchers have made detailed measurements showing that the smallest particles are the most toxic, easily flowing into the lungs and coating moist tissue. The findings raise concerns about current national air quality standards for particulate matter, which have been linked to 60,000 smog-related deaths in the US each year.
A University of California, Irvine study found that sea-salt chlorine reactions can raise ozone levels by up to 10% in Southern California smog. This could lead to increased pollution in coastal regions, with predicted ozone levels exceeding national standards on certain days.
A NASA study reveals that Zambia faces significant air quality challenges due to the transportation of pollutants across southern Africa. Ground-level ozone levels in Lusaka exceeded .90 parts per million during the day, posing serious health risks to local populations.
Biomass burning emissions from Africa and Australia travel long distances to reach remote islands in the South Pacific, contaminating the air with harmful tropospheric ozone levels. This phenomenon poses a significant atmospheric problem for the 21st century, affecting breathing and plant growth.