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To: Kasey Foley San Joaquin County Dept. EnvironFrom: Tony Hansen +1 (510)845-7137 9/25/98 1:36:00 Page 1 of 1 <br /> FACSIMILE COVER PAGE <br /> Date: 9/25/98 <br /> Time: 1:35:54 <br /> Page: 1 <br /> To: Kasey Foley <br /> Company: San Joaquin County Dept. Environmental <br /> Fax#: 1 (209) 468-3433 <br /> From: Tony Hansen <br /> Company: Magee Scientific Company <br /> Address: 1829 Francisco Street, Berkeley CA 94703 USA <br /> Fax#: +1 (510) 845-7137 <br /> Voice #: +1 (510) 845-2801 <br /> Message: <br /> Kasey - here is the text of an e-mail that I sent to Mr. Bill Oslund of CARB. <br /> Hopefully he will call you to fiond out what it's all about. <br /> Do you have access to the World-Wide Web? - if so, I just posted the charts there <br /> at the address that is shown. <br /> Regards <br /> Tony Hansen <br /> Dear Mr. Oslund <br /> In April of this year I visited your offices and gave a presentation to you and your <br /> colleagues about our instrument the Aethalometer, which provides a continuous <br /> measurement of particulate Elemental Carbon. Afterwards, you mentioned to me <br /> your interest in seeing if this would be useful for monitoring the smoke from <br /> agricultural burning, as well as its more 'traditional' application for monitoring the <br /> urban and regional environment. Since then we have had occasional contact and I <br /> believe that Jim Shinkle of Thermo Environmental Instruments may have been in <br /> touch with you. <br /> About six weeks ago I hastened to Tracy with an Aethalometer in my car, when I <br /> heard news on the radio about the conflagration at the tire dump there. For the last <br /> few weeks the instrument has been installed near the site, and Laurie Catullo and <br /> Kasey Foley of the San Joaquin County Dept. of Environmental Health (tel: (209) <br /> 468-3451) have been sending data to me by e-mail. I convert this into charts and <br /> fax it back to them on a regular basis. They have mentioned Mr. Mike Pore of your <br /> staff as being their point of contact with CARB. <br /> Earlier today I talked with Kasey Foley to see how the project was going. She <br /> informed me that the charts are showing not only the gradually diminishing tire-fire <br /> smoke, but also that they have been correlating peaks on the charts with their own <br /> observations of agricultural burning. She said that the impact of ag burning is very <br /> clear, and that they are marking up the charts to show this. She said that the time <br /> resolution and the immediacy of the data are very useful to them. This seems to be <br />