Environmental Chemistry Schedule of Experiments

WkDate Laboratory Activities
1 August 26 Registration details, safety video, orientation and introduction to Environmental Chemistry. Check-in and glassware cleaning.
Topics covered in lab lecture: Miscellaneous course details, Strawberry Creek.
Reading: pp. 1-10
2 September 2 Module 1: The Chemistry of Water, Week #1: Sampling Strawberry Creek: dissolved oxygen and conductivity measurements, coliform tests.
Reading: pp.13-53 and answer pre-lab questions on p.32
3 September 9 Module 1: The Chemistry of Water, Week #2: Analysis of water quality parameters: pH, alkalinity, conductivity, anion analysis by ion chromatography, and cation analysis by atomic absorption spectrophotometry. Topics covered in lab lecture: Conductivity measurements, ion chromatography, pH and alkalinity, dilutions.
Reading: pp. 55-94
4 September 16 No discussion/Lab. Midterm I on September 17!
5 September 23 Module 1: The Chemistry of Water, Week #3: Analysis of water quality parameters continued: pH, alkalinity, conductivity, anion analysis by ion chromatography, and cation analysis by atomic absorption spectrophtometry.
Topics covered in lab lecture: Atomic absorption spectrophotometry.
Reading: pp. 55-94
6 September 30 Module 1: The Chemistry of Water, Week #4: Computer graphics analysis of Strawberry Creek data.
Topics covered in lab lecture: Discussion of data. Error analysis, simple statistics, significant figures, overview of Kaleidagraph.
Reading: pp. 97-108 and Appendix C
7 October 7 Module 2: Lead in the Environment, Week #1: Field collection of samples for lead analysis.
Topics covered in lab lecture: Sampling considerations and choice of sites.
Reading: pp. 1-16 and p.32 in Part II of lab manual
8 October 14 No Discussion/Lab. Midterm II on October 15!
9 October 21 Module 2: Lead in the Environment, Week #2: Digestion of soil samples and preparation for analysis. Determination of percent water. Determination of soil pH. Tour of the graphite furnace AA.
Topics covered in lab lecture: Discussion of percent water determination, solubility equilibria, redox properties of metals, graphite furnace AA.
Reading: pp. 18-30 and pp. 33-38
10 October 28 Risk Assessment and Solubility of Organic Compounds
Solubility tests on organic compounds and a risk assessment exercise.
Topics covered in lab lecture: Discussion of lead data, solubilities of organic molecules, acid-base properties of organic compounds, risk assessment, Ames tests, epidermiology.
Reading: pp. 46-68 and pp. 72-75
11 November 4 Module 3: Pesticides in Fruits and Vegetables, Week #1: Extraction of pesticides from fruits and vegetables, begin SFE extractions.
Topics covered in lab lecture: Pesticides in the food suply, extraction with supercritical fluids.
Reading: pp. 70-71, pp. 77-82, and pp. 106-112
12 November 11 No Discussion/Lab. Midterm III on Novermber 12!
13 November 18 Module 3: Pesticides in Fruits and Vegetables, Week #2: Interpretation of chromatograms, data entry, wrap up SFE extractions, prepare for debate.
Reading: pp. 85-104 and pp. 113-120
14 November 25 Module 3: Pesticides in Fruits and Vegetables, Week #3: Discussion of data, pesticide debate.
Reading: pp. 120-125 and assigned set of readings
15 December 2 Check Out and Course Evaluations.
16 December 9 Final Exam, December 11

EChem Homepage / Lab Schedule / Lead in Oakland City Parks / Chemistry of Water / Pesticides in Fruits and Vegetables / Office Hours / Class Mail List / Announcements