Automated Ground-Water Sampling and Analysis of Hexavalent Chromium using a “Universal” Sampling/Analytical System

Sensors

Scott R. Burge²  Dave A. Hoffman²  Mary J. Hartman¹ 

[1] Pacific Northwest Laboratory, 3110 Port of Benton Blvd., Richland, WA 99354;Burge Environmental, 6100 Burge Environmental South Maple, Suite 141, Tempe, AZ 85283

关键词: field monitoring;    hexavalent chromium;    colorimetric;    automated analysis;   

DOI  :  10.3390/s5010038

来源: mdpi

【 摘 要 】

The capabilities of a “universal platform” for the deployment of analytical sensors in the field for long-term monitoring of environmental contaminants were expanded in this investigation. The platform was previously used to monitor trichloroethene in monitoring wells and at groundwater treatment systems (1,2). The platform was interfaced with chromium (VI) and conductivity analytical systems to monitor shallow wells installed adjacent to the Columbia River at the 100-D Area of the Hanford Site, Washington. A groundwater plume of hexavalent chromium is discharging into the Columbia River through the gravels beds used by spawning salmon. The sampling/analytical platform was deployed for the purpose of collecting data on subsurface hexavalent chromium concentrations at more frequent intervals than was possible with the previous sampling and analysis methods employed a the Site.

【 授权许可】

Unknown   
© 2005 by MDPI (http://www.mdpi.org).