Emma P. Popek, "Sampling & Analysis of Environmental Chemical Pollutants."(repost)

An excellent introduction to the real world of environmental work, this title helps both college students and working professionals improve their understanding of the data collection process. It covers all phases of data collection (planning, field sampling, laboratory analysis, and data quality assessment), and is a single source comprehensive reference for the resolution of the most common problems that environmental professionals face daily in their work.