In the past most of the research conducted was to evaluate pollution/contamination in rivers. This researcher decided to have a look at lakes. Shockingly even remote lakes were discovered to have man made pollutants…
Unlike rivers, lakes typically aren’t a dumping ground for large industries and city wastewater treatment plants. Schoenfuss wondered if they are being affected by the same chemicals.
More here: http://www.sctimes.com/article/20101222/NEWS01/112220015/1009/SCSU-scientist-eyes-chemicals–impact-on-state-lakes