Pesticide Types And Formulations MEDIUM 40 CFR § 156.10(h) & 40 CFR § 171.103

What is a major operational disadvantage and safety hazard associated with Emulsifiable Concentrate (EC) formulations?

Multiple Choice Options

A They cause rapid abrasion of brass and aluminum spray nozzles comparable to coarse dry sand.
B They contain petroleum solvents that easily penetrate human skin, can degrade rubber hoses/seals, and present flammability risks. ✓ OFFICIAL VERIFIED CORRECT ANSWER
C They cannot form a liquid emulsion in water without continuous violent mechanical paddle agitation.
D They leave a heavy, highly visible white chalky residue on treated plant surfaces and ornamental foliage.
✓ LEGAL EXPLANATION & STATUTORY RATIONALE
40 CFR § 156.10(h) & 40 CFR § 171.103
Official Manual Chapter: Chapter 8: Pesticide Formulations

Emulsifiable Concentrates (EC) dissolve the active ingredient in one or more petroleum-based organic solvents. The solvents enhance dermal absorption through human skin, can cause phytotoxicity to sensitive foliage, deteriorate rubber and synthetic gaskets/hoses, and have low flash points making them fire hazards.

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