||Binational study regarding the presence of toxic substances in the Rio Grande/Rio Bravo and its tributaries along the boundary portion between the United States and Mexico : final report, September 1994 = Estudio binacional sobre la presencia de sustancias tóxicas en el Rio Bravo/Rio Grande y sus afluentes, en su porción fronteriza entre México y Estados Unidos : informe final, septiembre de 1994.
|| International Boundary and Water Commission ; National Water Commission of Mexico ; U.S. Environmental Protection Agency,
||EPA 906-R-84-001; EPA 906/R-94/912; EPA/906/R-94/001
Water--Pollution--Rio Grande Watershed (Colo.-Mexico and Tex.) ;
Fishes--Effect of water pollution on--Rio Grande Watershed (Colo.-Mexico and Tex.) ;
North America--Rio Grande Watershed. ;
Water--Pollution--Mexican-American Border Region ;
Hazardous wastes--Mexican-American Border Region ;
Toxicity testing--Mexican-American Border Region
United States ;
Rio Grande River ;
Water pollution sampling ;
Toxic substances ;
Chemical compounds ;
Bottom sediments ;
Ecological concentration ;
Water polution effects(Animals) ;
Animal tissues ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||246 pages ; 28 cm
A toxic chemical study on the Texas/Mexico reach of the Rio Grande during 1992-93 involved 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.
Cover title. Includes bibliographical references (pages 67-75).