Pesticide Registration and Classification

1. (a) The definition of terms used in these regulations shall be consistent with the definitions in Section 22a-47, Connecticut General Statute.

2. (b) The following terms not defined in Section 22a-47, Connecticut General Statutes, are defined as follows:

   1. (1) aquatic use — materials applied on or in water except in self contained artificial structures such as cooling towers and swimming pools.
   2. (2) bioaccumulation — the concentration of a substance in an organism which exceeds those concentrations found in the surrounding environment.
   3. (3) breakdown product — a chemical substance resulting from the transformation of a pesticide by physical, chemical, electromagnetic, or biological means.
   4. (4) carcinogenesis — the generation of malignant tumors in animals.
   5. (5) Dermal LD₅₀ — the amount of material, expressed as mg substance/kg test animal or ppm, placed on the skin that will kill 50% of the number of test animals.
   6. (6) food chains — the numerous pathways by which matter and energy are exchanged within an ecosystem.
   7. (7) Inhalation LC₅₀ — that concentration, expressed as mg substance/1. air or ppm in the air, that would be lethal to 50% of the test population of animals within a specific time and under specified test conditions.
   8. (8) mutagenesis — the generation of genetic changes in animals or somatic changes in subsequent generations of animals.
   9. (9) Oral LD₅₀ — the amount of material expressed as mg substance/kg test animal or ppm absorbed through the digestive tract that will kill 50% of the number of test animals.
   10. (10) "Ready-to-Use" — a pesticide as sold to the user, registered and labelled for immediate application without further dilution.
   11. (11) synergism — cooperative action of two or more agents such that the joint effect if greater than the sum of the single effects taken independently.
   12. (12) teratogenesis — the generation of congenital defects in animals, which are ordinarily non-hereditable. ((13))

(Effective February 14, 1975)