Binational Study Regarding the Presence of Toxic Substances in the Rio Grande/RioBravo and Its Tributaries along the Boundary Portion between the United States and Mexico (Estudio Binacional Sobre la Presencia de Sustancias Toxicas en el Rio Bravo/Rio Gra

摘要

A toxic chemical study on the Texas/Mexico reach of the Rio Grande during 1992-93involved sampling at 19 mainstem sites and 26 tributaries. Field surveillance was conducted during low flow. The evaluation included determinations of toxicity testing of water and sediment; and bioassessments of fish communities and benthic macroinvertebrate communities.