Pesticides In The Environment MEDIUM ASABE Standard S572.1 & EPA Drift Management

Which droplet size spectrum (ASABE S572 standard) presents the HIGHEST risk of physical spray drift off-target?

Multiple Choice Options

A Fine (F) and Very Fine (VF) droplets (<150 microns VMD). ✓ OFFICIAL VERIFIED CORRECT ANSWER
B Coarse (C) droplets (250 to 350 microns).
C Very Coarse (VC) droplets (350 to 450 microns).
D Ultra Coarse (UC) droplets (>500 microns).
✓ LEGAL EXPLANATION & STATUTORY RATIONALE
ASABE Standard S572.1 & EPA Drift Management
Official Manual Chapter: Chapter 7: Environment & Drift

Droplets smaller than 100 to 150 microns remain suspended in the air column, settle very slowly, evaporate rapidly into aerosol mists, and drift long distances with minimal ambient wind.

Official EPA Core Study Domain Pesticides In The Environment
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