商品簡介
The continued use of outdated sampling methods will ultimately call into question the representative nature of the ground-water samples being collected and the quality of the data generated by many current sampling programs, warn the Nielsens, who run an environmental field school in Ohio. Not only do they encourage regulators to specify and practitioners to use improved methods, they also explain how the new methods are actually less expensive than the old. Annotation c2007 Book News, Inc., Portland, OR (booknews.com)
