OHIO STATE UNIVERSITY EXTENSION Ohio Pesticide Applicator Training Unit 4 Pesticides in the Environment

2 OHIO STATE UNIVERSITY EXTENSION Explain the Meaning of the Word “ENVIRONMENT” EVERYTHING AROUND US NATURAL ELEMENTS MAN MADE COMPONENTS INDOORS AND OUTDOORS AIR SOIL WATER PLANTS ANIMALS HOUSES FACTORIES OFFICE BUILDINGS

3 OHIO STATE UNIVERSITY EXTENSION Factors to Consider When You Release Pesticides into the Environment SENSITIVE AREAS IN THE ENVIRONMENT *AT THE USE SITE *NEAR THE USE SITE CONDITIONS IN THE ENVIRONMENT THAT COULD CAUSE PESTICIDE TO MOVE OFFSITE CHANGES IN METHODS OR USAGE TO REDUCE THE RISKS OF CONTAMINATION

4 OHIO STATE UNIVERSITY EXTENSION Point Source vs. Non-Point Source POINT SOURCE ENVIRONMENTAL CONTAMINATION CAN BE TRACED BACK TO ITS ORIGINAL SITE. NON-POINT SOURCE ENVIRONMENTAL CONTAMINATION COMES FROM A WIDER AREA.

5 OHIO STATE UNIVERSITY EXTENSION Sensitive Areas IN OR NEAR SURFACE WATER SCHOOLS,PLAYGROUNDS,HOSPITAL HABITATS OF ENDANGERED SPECIES APIARIES,WILDLIFE REFUGE,PARKS ORNAMENTAL GARDENS WHERE FOOD OR FEED IS

6 OHIO STATE UNIVERSITY EXTENSION Pesticides Move Off the Release Site in Several Ways AIR, ie. WIND OR VENTILATION SYSTEMS. WATER, ie. RUNOFF AND LEACHING ON OR IN OBJECTS, ie. PLANTS, ANIMALS AND HUMANS MOVED OFFSITE

7 OHIO STATE UNIVERSITY EXTENSION Drift - Pesticide particles, dust, spray, droplets, and vapors that are carried offsite in the air.

8 OHIO STATE UNIVERSITY EXTENSION Factors That Influence Air Movement of Pesticides Lightweight particles Fine nozzles High pressure High wind speeds

9 OHIO STATE UNIVERSITY EXTENSION Factors That Influence Water Movement of Pesticides Drift, leaching, and runoff Spills, leaks, and back-siphoning Improper disposal of rinsates and containers Too much rainwater or irrigation

10 OHIO STATE UNIVERSITY EXTENSION Factors That Influence Movement of Pesticides On or In Other Objects  SHOES AND CLOTHING  FOOD AND FEED  PRODUCTS THAT EXCEED LEGAL TOLERANCES

11 OHIO STATE UNIVERSITY EXTENSION How Pesticides Could Harm Nontarget Plants and Animals  Direct contact of pesticide on the non-target plant or animal.  Poor timing  Residue

12 OHIO STATE UNIVERSITY EXTENSION References Applying Pesticides Correctly OSU BULLETIN 825 Ohio State University Extension