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Chemistry 310/311 Fall 2001. Mission: Determine if soils near Sherwin Williams White lead factory (10909 S. Cottage Grove) listed as EPA site in the neighborhood of Pullman, Chicago are elevated in lead as compared to other areas of Chicago.
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Chemistry 310/311 Fall 2001 Mission: Determine if soils near Sherwin Williams White lead factory (10909 S. Cottage Grove) listed as EPA site in the neighborhood of Pullman, Chicago are elevated in lead as compared to other areas of Chicago. This area is not overall high for reported lead poisoning cases deriving from leaded paints (see map at http://www.luc.edu/depts/chem/faculty/fitch/fitchgroup /Service_Learning/Lead_in_Chicago/lead_in_chicago.html) but was the site of numerous white lead paint factories. The paint factories located in this region in the late 1800s as part of the industrial boom based on railways in Chicago.
Sampling Procedure 10 samples acquired at the factory site; 12 samples acquired in the surrounding vicinity up to 2 miles distant. See next slide 1. 3 foot square, grab samples at surface in each corner and in center, bag. 2. Dry 3. Split into 4 1 gramsubsamples. 3 serve as replicates of digestion. 1 serves as a lead spiked control. Spiked with 100 ug of lead. % Recovery: Solution blank 104% Soil spikes: 170+-132%: soils were much more variable in recovery. Soil samples with >35% relative standard deviation were omitted from the final report.
Gately Park (2) Corliss St parkway (2) Keebler abandoned lot (2) Sherwin- Williams Arcade Park (2) Palmer Park (2) Empty lot on Langley (2)
1254 157 26&78 110 457 Numbers are ug Pb/gsoil 412 721 114
1254 1254 157 78 110 457 712 412 114 Student map superimposed over aerial image of factory North Conclusion: lead is highest at the factory wall and in vicinity of rail tracks. Remainder is within range of urban Chicago Soils.
Dr. Dias, Irfan,Paula, Audrius, Kara Claire, Jennifer at the SW site.
Tuesday lab (Brendon (back), Matt (hat), Jake, Danish) plot a course of action at Pullman Park
Matt is holding a hard surface for the radar distance measurement