University of Delaware VEB Research & Demonstration University of Delaware Environmental House Demo VEB, 2003

University of Delaware Research: Farm Layout & Sample Location Study Site present E W NS VEB Planting

Air samples: Odor Ammonia PM 10 PM2.5 U of Delaware Test Site – Working Broiler Farm Bald Cypress 16” Leyland C 14” Red Cedar 8’ Tree Type & Planting Distance

U of Delaware Test Site – Working Broiler Farm

Wind: A Major Challenge in Measuring Emissions

Photo: J. Tyndall, ISU U of Delaware Test Site – Working Broiler Farm Crosswind barrier

Smoke Test & Dust Accumulation Observations 30’ 8’

Sampling Procedures & Methods 4-5 hr sampling events week prior to broiler and roaster movement 2002 = 10 days; 2003 = 9 days (summer flocks) Total dust: gravimetric using 37mm cassettes and pumps calibrated at 2 L/min. (NIOSH # 0500) Ammonia: Gastec dosimeter tubes # 3DL (10 ppm) and Impinger method (OSHA ID-164) H 2 SO 4 : 10L tedlar bags sent to ISU (Jerome 631 H 2 SO 4 Analyzer) Odor: 10L tedlar bags sent to ISU (AC’Scent International Standard Olfactometer)

Front Rear 4’4’ Sampling Procedure: 2 locations opposite tunnel fans (front and rear) ~5 hrs/day, one week prior to broiler & roaster movement # Sampling events during summer flocks: 10 days in 2002; 9 days in 2003

University of Delaware Test Site – Working Broiler Farm Photo: J. Tyndall, ISU

3 Years of Data Suggest VEB Reduce from Tunnel Fans: Delaware – –Ammonia 47% –Total dust51% –Odor13% X X 22 ft three row VEB

VEB Planting at University of Delaware Environmental House South North East West

University of Delaware Main Contact: George “Bud” Malone, Extension Poultry SpecialistGeorge “Bud” Malone Research and Education Center County Seat Highway Georgetown, DE (302) (302) ext. 557 (302) (FAX) Other researchers: Dave HansenDave Hansen, Assistant Professor, Soil and Environmental Quality Gary Van WicklenGary Van Wicklen, Extension Poultry Production Engineer, Assoc. Professor BioResources Engineering