Canada wildfire smoke chokes millions in North America

A deep orange-brown sun shined through hazy skies as smoke from Canadian wildfires spread across North America and beyond, choking millions of people and triggering severe air quality alerts.

Mosquito bite prevention with cellulose nano crystals

A study proposes a new way to prevent mosquito bites, based on an inexpensive and readily available biomolecule. Mosquitos spread potentially fatal diseases affecting humans, including malaria, zika, chikungunya, and yellow ...

New methods for measuring reactive polysulfides in vegetables

The health-promoting effects of sulfur-rich vegetables such as onions and garlic have been known for a long time. How food containing sulfur compounds promotes health has not been easy to explore, as the levels—and types—of ...

Unearthing the sources of cave-forming sulfuric acid

A study published in the journal Geology uses isotopes of sulfur to fingerprint the sources of sulfuric acid that have carved unique and beautiful cave systems in the Pyrenees mountains of southern France.

Study shows chemical's extent in the Fairbanks winter air

A chemical compound discovered in 2019 in the wintertime air of Fairbanks, Alaska accounts for a significant portion of the community's fine particulate pollution, according to new research that seeks to better understand ...

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