Tues
Lab at Pittsboro smog chamber: leave UNC Thurs. at
Last update:
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Date |
Day |
Lectures are numbers (1,2,3..) and smog chamber or lab is letters (A,B,C.) |
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Aug 19 |
Tues |
1. Lecture: Introduction to SOA: readings; Pitt and Pitts, 2000, pages 1-13: start to collect articles on Isoprene and SOA (There are some links to articles in Lecture 5 below). Odum Theory |
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Aug 21 |
Thrus |
A. First visit to smog chamber; readings: http://www.unc.edu/~kamens/chamber.shtml |
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Aug 26 |
Tues |
2. Lecture: Why should we study isoprene? Concepts used to build an SOA mechanism readings: Kamens et al, 1999 Kamens et al, 1982, Lewandowski and Schauer et al, ES&T 2008, other readings that you need to start reading
Homework 1: is to start generating a reaction scheme
for O3 + isoprene. Due next week on Tuesday. |
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Aug 28 |
Thurs |
B. Smog Chamber: Measurement of hydrocarbons in the Chambers; readings: How does a GC work? Theory ugly notes Erba manual |
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Sept 2 |
Tues |
3. Lecture: kon-k-off kon-koff
results Intro
to Photochemical Smog processes; Seinfeld and Pandis, Chapter 5, Atmospheric Chemistry and Physics,1998, or Seinfeld and Pandis, or Chapter 6, Atmospheric Chemistry and Physics,2006, We may need a make up class Homework 2: is to calculate the vapor pressure of tetrol type isoprene products, (see end of lecture 2) and then Kp for the different temperatures in the kon-koff spread sheet. Then calculate the ratio of different isoprene products in the gas and the particle phase if there are 10,50 an 100ug/m3 of particulate matter present in the atmosphere |
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Sept 4 |
Thurs |
C.Smog Chamber: Calibration
and measurement of NO, NO2, SF6
manual Maintaining the NOx
O3 analyzers. (Sat Sept 6. Go to site with Eli and Yang? and make sure
you can do this “blind-folded” Edit and update NOx-O3 calibration manual
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Sept 9 |
Tues |
4. Lecture: Finish photochemical Smog, Start measurement of fine particles (SMPS and OPC.) Read: lect4eaa.doc, lecture4b.pdf
Homework: 3. Generate an MVK reaction scheme MVK + O3 Figure 6.4 in Pitts and Pitts on page 197Due next week on Tuesday. |
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Sept 11 |
Thurs |
D. Smog Chamber: Measuring particles: How to operate the TSI SMPS systems by Sangdon Lee, 2000, and using the old DMA Grimm OPC What we will do. |
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Sept 16 |
Tues |
5. Lecture: What do we know about isoprene SOA products so far? How much does isoprene contribute to SOA, pool information and start thinking about how to build a mechanism that takes into account particle phase products.
Readings: Kamens et al, 1982, Claeys et al., Science 303, 1173–1176, 2004, Edney et al., Atmos. Environ. 39 (2005) 5281–5289. Question: What does Pandis say about SOA production from isoprene (ES&T, 2007) compared to a new article by Lewandowski and Schauer et al, ES&T, 2008? |
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Sept 19? |
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Smog Chamber: 1st isoprene NOx experiment. (Sat or Sunday back up) |
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Sept 23 |
Tues |
6. Lecture: Review experiment, make plans for next experiment, and how do we calibrate flows at the site. Read pages 55 -65, Occupational Exposure Assessment fir Air Contaminants, Gurumurthy Ramachandran , CRC press, 2005, (prepare for 2nd experiment can this can be done any day of the coming week)
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Sept 25 |
Thrus |
Smog Chamber: Calibration of flow measurements at the site. After we are done, Rich will create a flow problem with one of the filter samplers and you will have 10 minutes to fix it. |
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Sept 30 |
Tues |
7. Lecture: Students organize list of isoprene SOA products and papers and report on what are the most important particle phase products. Discuss progress on mechanism development. Rich discusses estimating RO2 –RO2 rate coefficients from structures (Jenkin Atmos Envir 1997, Sato article and chamber experiment ).
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Oct 2 |
Thurs |
Smog Chamber: Go over flow measurements; and calibrate filter samplers. |
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Oct 7 |
Tues |
8. Lecture: Gas particle partitioning Langmuir and Yamasaki, Readings: Yamasaki, EST 1982, Pankow Atmos. Envir, 1987, 1994. |
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Oct 9 |
Thurs |
Smog Chamber: take filters and denuders at site for a-pinene product analysis of gas and
particle phase. How well do filter masses agree with DMA measurements? Come
back and extract filters. Read McDow, Atmos. Envir., 1990 and Turpin, Atmos.
Envir. 1994 |
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Oct 14 |
Tues |
Lecture10: Filter Sampling and Denuder artifacts, readings: Pozanzini, Atmos. Envir., 1982
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Oct 16 |
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Fall Break |
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Oct 21 |
Tues |
Lecture 11: more gas particle partitioning, the Pankow-Junge relationship and BET. |
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Oct 23 |
Thurs |
Room 0016
Operating the HP-GCMS; Internal standards and analysis of samples. |
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Oct 28 |
Tues |
Room :
Isoprene
–O3 data Blow down filter extracts; operating the HP-GC and Varian GCMS |
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Oct 30 |
Thurs |
Lecture: Nucleation Theory, Readings |
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Nov 4 |
Thurs |
Room 0016:
Operating the IC |
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Nov 11 |
Tues |
Vizuete and Kamens class: Lecture: mass transfer of materials from one chamber to another; |
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Nov 13 |
Thurs |
Vizuete and Kamens class to smog chamber: |
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Nov 18 |
Tues |
Sexton Lecture PFBHA : |
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Nov 20 |
Thurs |
Sexton Lab, PFBHA : |