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Lecture1

# Lecture1 - Lecture#1 Introduction Rutgers University...

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Lecture #1 - Introduction Rutgers University Department of Environmental Science • First in the world due to filter (Psychoda) fly problem at Plainfield sewage treatment plant • City approached Agricultural College in NJ (now SEBS) for help from the State Entomologist (Prof. Thomas J. Headlee) • Prof. Thomas J. Headlee decides it is an interdisciplinary problem - need a team of biologist, microbiologist, chemist and engineer • NJ State Legislature creates Sewage Substation of the Agricultural Experiment Station, later called Department of Sanitation, becomes Department of Environmental Science How much of a component is there within a mixture Mass per Volume - mg/L - water&air Mass per Mass - mg/kg, ppm, % - water&solids Volume per Volume - mL/m^3, ppm, % - air Metric System Basic Units m = __________ • L = __________ • g = __________ • Pre-fixes M = __________ • k = __________ • c = __________ m = __________ = __________ Simple Conversions In Air, 1 mL/m^3 = 1 ppm In Solids, 1mg/kg = 1ppm Because 0.001g/1000g = 1/1,000,000 In Water, 1 mg/L = 1ppm

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Lecture1 - Lecture#1 Introduction Rutgers University...

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