January 2012, Vol. 24, No.1

Waterline

Drexel University boasts the largest living wall in U.S.

A living wall at Drexel University (Philadelphia) contains approximately 1100 individual plants of about 20 different plant species, according to a CNW Group Ltd. (Toronto) news release. The 146-m2 (1570-ft2) wall in the Papadakis Integrated Sciences Building is the largest living wall in the United States./assets/0/86/107/645/16552/6442451920/6442451921/5cb8b223-a3c6-4920-b83c-4bc7e6b0527b.jpg 

The wall, designed by NEDLAW Living Walls (Breslau, Ontario) in collaboration with Diamond and Schmitt Architects (Toronto), stands at 21 m (70 ft) tall and more than 7 m (22 ft) wide.

The wall incorporates the patented NEDLAW Living Walls biofilter system, which is capable of generating between 450 and 850 m3 (16,000 and 30,000 ft3) of air per minute. The wall’s respiration replaces the building’s air-circulation system that pulled outdoor air inside the building, the news release says.

The biofilter also helps remove airborne pollutants that could affect indoor air quality. This system connects to the building’s air-handling system and draws indoor air over the root zone of the plants. Beneficial microorganisms that make their home in the root zone use any airborne pollutants as food and break them down into water and carbon dioxide, the news release says.

USGS images identify flooding in New York area

The hamlet of Pine Island in Warwick, N.Y., experienced heavy flooding on Aug. 31 because of the remnants of Hurricane Irene, according to a U.S. Geological Survey (USGS) news release./assets/0/86/107/645/16552/6442451920/6442451921/c0c2a7aa-8d57-4b5c-b72e-7265cc6aea42.jpg 

Landsat 5 imagery obtained by USGS shows the region, which is the remains of a shallow lake formed by receding glaciers, before and after Irene. Landsat images, provided by a joint effort of the USGS and NASA, provide information from natural hazard events and become a part of the USGS WaterWatch site that displays maps, graphs, and tables describing current and past streamflow conditions.

 

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