Passive sampling techniques have emerged as indispensable tools in the monitoring of environmental pollutants. These methods involve the in situ accumulation of contaminants over extended periods, ...

Water sampling and analysis methods today are logistically complex, labor-intensive, time-consuming, and costly. Could drones, which are relatively cheap provide part of the solution? After two years ...

Figure 3: The Ballast-Check 2’s Activity parameter correlated with Walz Water PAM fluorometer’s Yield estimate. Samples with abundances < 5 cells/ml have been omitted from the data set in this figure.

Several states with extensive water use databases rely upon the census approach. That is, data are collected for all water users withdrawing amounts greater than a specified threshold that varies from ...