385 results
385 results for: chemistry
- Chemistry
Pollutants: Up in flames
Forest fires have the potential to release toxic industrial and agricultural pollutants previously trapped on soil. After glomming onto smoke particles, these chemicals can hitch long-distance rides — sometimes across oceans — before they’re grounded and contaminate some new region, scientists report.
- Chemistry
The element tin does what carbon will not
New bonding suggests scientists may need to rethink heavy metal chemistry.
- Chemistry
Flowerless plants make fancy amber
A new analysis suggests that ancient seed plants made a version of the fossilized resin credited to more modern relatives
- Materials Science
Breakup doesn’t keep hydrogel down
Scientists create a new material that is strong, soft and self-healing.
- Chemistry
Concerned about BPA: Check your receipts
Some cash register receipts offer the potential for relatively large exposures to an estrogen mimic.
- Chemistry
PCBs: When green paint isn’t ‘green’
It seems we're literally painting the air -- from the Great Lakes to Antarctica -- with persistent pollutants. Including at least one whose safety has never been studied.
- Chemistry
2009 Science News of the Year: Molecules
Tangles of collagen IV chains link at globules via sulfur-nitrogen bonding (illustrated above). Credit: Courtesy of Science/AAAS New bond in the basementBasements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds […]
- Earth
Toxic playgrounds
No kid should ever play in arsenic. Especially at school. Yet many probably do, according to findings of a study presented today.
- Chemistry
Bad perfume: Cardboard’s intense scents
Wet cardboard and food should not share the same air space.
- Chemistry
Nose knows noxious gases
Dyes on a new sensor react to correctly identify toxic chemicals, scientists find.
- Chemistry
Case of the toxic gingerbread man
Featured blog: A search for the source of some indoor-air anomalies turns up a surprising culprit.
- Chemistry
Aerosols cloud the climate picture
A NASA model incorporates how atmospheric aerosols and greenhouse gases interact, yielding better estimates of the gases' warming and cooling effects.
