Municipal leachate was treated in an experimental unit of constructed wetlands of subsurface flow type. The parameters studied were organics (BOD and COD), solids and heavy metals (Zn, Ni, Cu, Cr and Pb). Using two types of emergent plants of Scirpus globulosus and Eriocaulon sexangulare, more than 80% removal was achieved for all the parameters. E. sexangulare removed organics and heavy metals...

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Environmental pollution with heavy metals is a global disaster that is related tohuman activities. This study was conducted to determine the extent of heavy metalsaccumulation by plant species in Lia industrial city (Qazvin, Iran) and to investigate theremediative capacity of native plant species grown in the contaminated soils. Soil andindustrial wastewater sampling was done radially along tra...

environmental pollution with heavy metals is a global disaster that is related tohuman activities. this study was conducted to determine the extent of heavy metalsaccumulation by plant species in lia industrial city (qazvin, iran) and to investigate theremediative capacity of native plant species grown in the contaminated soils. soil andindustrial wastewater sampling was done radially along tra...

www.sciencemag.org (this information is current as of November 26, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/316/5829/1316 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1140300/DC1 can be found a...

Larvae of. Culex tarsalis Coquillett and Culiseta inornata Williston are abundant in duck ponds within the San Joaquin freshwater marsh. Culex tarsalis are found year-round and Culiseta inornata are found during the winter months. Each duck pond has an area ofopen water ringed with emergent Scirpus californicus (bulrush) and Typha latifolia and Typha anpstifolia (cattails). Low densities of lar...