Installing a microsampler for daily collection of pesticides

Installing a microsampler in a flooded creek

Detailed Description

A USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly. See here for more information.


Image Dimensions: 2592 x 1944

Date Taken:

Location Taken: Milwaukee, WI, US