News tagged with concentration

Pinpointing climate change uncertainty

The National Climate Assessment, released recently by the White House, describes a troubling array of climate woes currently affecting the United States—from intense droughts and heat waves to more extreme precipitation ...

Jun 09, 2014 2.9 / 5 (8) 2

The pathways of a shape-shifting pesticide

The pesticide endosulfan is being phased out in the United States because of its threat to humans and wildlife. But researchers still want to understand how endosulfan moves through the atmosphere after it ...

Sep 20, 2013 not rated yet 0

Tracing nitrate in watersheds

Plants need nitrogen to grow, and nitrate is a common fertilizer ingredient, but high levels of nitrate contamination in drinking water sources can cause health problems. It is generally known that nitrogen flows through ...

Mar 15, 2013 5 / 5 (2) 0