Document ppDZ1K160NmRKdbykVxpb7Yy6

DuPont Modeling Methodology and Results DRAFT Shimizu Site June 2003 AR226- 06/02/03 IO GJ GJ About the Model Industrial Source Complex Short Term 3 (ISCST3) Sold/used globally, Including in Japan http://www.phoenix-r.co.jp/products/products.htm Input Stack height, diameter Flowrate, temperature Mass of pollutant (kilogram per hour) Local meteorological data (Shlzouka 1997, 98, 99) Output Ambient air concentrations in ug/m3 Max values and locations outside the property line CAB000376 Prevailing wind -- *> R HD H CAB0OO377 Ambient annual ground level concentration in ug/m3 Model Calculations i Ambient air concentrations based onGaussian Equation Concentration a function of a vertical term and a i dispersion term i Vertical term based on stack height, receptor elevation, plume rise, mixing i B H O H Dispersion parameters describe distribution of pollutant in lateral and vertical CAB000378 m Ha<H1 ir CABO0037 9 Shimizu Modeling Inputs Stack Parameters Source ID 1 2 3 4 ssmPmPccoraarresuupp-tbbs))-scbbcreeurrrub((bbccbeaaerllDeereeeddxsxi""tciAAtfroiCfCportrifSSoifninccnerreuupbbpobboweewdrrd''eoeornnr DBCScrubber MP-2scrubber location DPlant DPlant pcolaEpnoPMtlyflaPomn-rp2teoP:rwbcFtuoydAippeldaoerinnlymdgm:iFceErroP- OOOOppppeeeepppprerrreeeOdddrdrrraaaappppaaaaptttteeeeyyyyeeeee,,rr,,rrssssryayy2y2112222eeete0788i44o44aaaa0000nrrrrhhhhddddsooooaaaauuuuyyyyrrrrssssssssj Height, m - Diameter, m 8 0.68(1) 15 0.6 18,2 0.6 16.1 10.6 assumed Flowrate m3/hr 2400 9600 1620 7500 r~ N> (1)GivenInemailof4/17/03from Hidetaka Hlromatsu: 600sommsquaredlametTer. Conve:rtedto effectivediameterof0.68meters. Temp 100 C 40-50 C 40 C 40 C assumed H H H Correct stack height? CAB000380 ; I Shimizu Modeling Inputs Emissions Rates Source ID Description Pre-scrubber exit for tine powder scrubber (called "A C Scrubber" 1 on map) Location D Plant Em ission Rate, Em ission kg/hr Rate, g/s 0.24 0.0667 Post-scrubber exit for fine powder scrubber (called "A C 2 Scrubber" on map) D Plant 0.24 3 D BC Scrubber E Plant: copolym er plant for P F A and F E P 0.07 0.0667 0.0194 4 MP-2 scrubber M P-2 building: copolym er type micro-powder 0.125 0.0347 o o o aw EID 71941 7 Preliminary Modeling Results - i' -' t i k i ? ,, Maximum annual concentrations calculated as 14 ug/m3 rW Point of maximum concentration at south boundary of site (on property line) W HO CAB0003B2 CONTOUR RESULTS FROM MODEL \ w H D Hxj 200 250 300 CAB000383 Contribution of Sources S o u rc e ID 1 2 3 4 D e sc rip tio n Pre-scrubber exit for fine powder scrubber (called "A C Scrubber" on map) Post-scrubber exit for fine powder scrubber (called "A C Scrubber" on map) L o c a tio n D Plant D Plant C o n trib u tio n , Height, m ug/m3 Contribution, % 8 7.002 50 15 3.345 24 D BC Scrubber MP-2 scrubber E Plant: copolymer plant for P F A and F E P M P-2 building: copolymer type micro- 18.2 16.1 2.953 0.771 total = 14.071 21 5 H CAB0OO384