Perchlorate in water, soil, vegetation, and rodents collected from the Las Vegas Wash, Nevada, USA.
Water, soil, vegetation, and rodents were collected from three areas along the Las Vegas Wash, a watershed heavily contaminated with perchlorate. Perchlorate was detected at elevated concentrations in water, soil, and vegetation, but was not frequently detected in rodent liver or kidney tissues. Broadleaf weeds contained the highest concentrations of perchlorate among all plant types examined. Perchlorate in rodent tissues and vegetation was correlated with perchlorate concentrations in soil as expected, however rodent residues were not highly correlated with plant perchlorate concentrations. This indicates that soil may be a greater source, or a more constant source of perchlorate exposure in rodents than vegetation.
The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock 79409-1163, USA. phil.smith@ttu.edu
Philip N
PN
Smith
Lu
L
Yu
Scott T
ST
McMurry
Todd A
TA
Anderson
D000818:Animals; D017753:Ecosystem; D004781:Environmental Exposure / Q000009:adverse effects; D004784:Environmental Monitoring / Q000379:methods; D007668:Kidney / Q000737:chemistry; D008099:Liver / Q000737:chemistry; D051379:Mice; D009516:New Mexico; D010472:Perchlorates / Q000032:analysis*; D010542:Peromyscus; D010944:Plants / Q000737:chemistry*; D012377:Rodentia / Q000378:metabolism*; D016205:Sigmodontinae; D017670:Sodium Compounds / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*
D010472:Perchlorates; D017670:Sodium Compounds; D012989:Soil Pollutants; D014873:Water Pollutants; C031068:sodium perchlorate