Science News Archive - August 30, 2007

Cheatgrass, a wispy Eurasian weed accidentally brought to the USA in the late 19th century, has become a 21st century headache across the West, fueling some of this summer's most destructive wildfires.

By Antoniou, Chrysoula V Koukouraki, Elisavet E; Diamadopoulos, Evan ABSTRACT: The aim of this work was to develop a simple and fast analytical method for the determination of a wide range of organic compounds (volatile and semivolatile compounds) in municipal wastewater.

By Zhang, Q L Gao, Nai-Yun; Lin, Y C; Xu, Bin; Le, Lin-sheng ABSTRACT: Removal of arsenic(V) from aqueous solutions was evaluated with the following three different sorption materials: coal-based activated carbon 12 x 40 (activated carbon), iron(II) oxide (FeO)/activated carbon-H, and iron oxide.

By Ju, Lu-Kwang Huang, Lin; Trivedi, Hiren ABSTRACT: Simultaneous nitrification and denitrification (SND or SNdN) may occur at low dissolved oxygen concentrations.

Entomologists are debating the origin and rarity of a sprawling spider web that blankets several trees, shrubs and the ground along a 200-yard stretch of trail in a North Texas park.

As the world warms, the United States will face more severe thunderstorms with deadly lightning, damaging hail and the potential for tornadoes, a trailblazing study by NASA scientists suggests.