Science Inventory

Environmental Technology Verification Report: Pesticide spray drift reduction technologies--Evaluation of the verification protocol for low and high speed wind tunnel testing

Citation:

RTI INTERNATIONAL, Alion Science & Technology, AND USDA-ARS College Station. Environmental Technology Verification Report: Pesticide spray drift reduction technologies--Evaluation of the verification protocol for low and high speed wind tunnel testing. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-12/057, 2012.

Impact/Purpose:

ETV protocol

Description:

Pesticide spray drift is defined as the movement of spray droplets through the air at the time of application or soon thereafter from the target site to any non- or off-target site, excluding pesticide movements by erosion, migration, volatility, or windblown soil particles after application. EPA established a Drift Reduction Technology (DRT) project under EPA’s Environmental Technology Verification (ETV) Program. Before the pesticide spray DRT generic verification protocol (GVP) can be used for verification testing, it requires testing and evaluation. For the low and high speed tests representing ground and aerial applications, respectively, the validity of and applicability of the pesticide spray DRT protocol were evaluated using two test nozzles and one reference nozzle. Low speed wind tunnel tests did not achieve all the spray size distribution, spray flux, and spray deposition data quality indicator goals (DQIGs). However, the data collected were adequate for revising the low speed wind tunnel portion of the DRT GVP, the main goal of this research. High speed wind tunnel tests achieved the most important DQIGs. This report provides stakeholders the validation data in an unbiased manner so they can provide U.S. EPA suggestions to revise and improve the GVP.

URLs/Downloads:

ETV REPT: PEST SPRAY DRIFT REDUC TECHNOL--EVAL VERIFIC PROTOCOL LOW & HIGH SPEED WIND TUNNEL TEST

Record Details:

Record Type: DOCUMENT (ETV DOCUMENT)
Product Published Date: 05/29/2012
Record Last Revised: 11/07/2012
OMB Category: Other
Record ID: 220169

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

AIR POLLUTION PREVENTION AND CONTROL DIVISION

EMISSIONS CHARACTERIZATION AND PREVENTION BRANCH