Pesticides Risk analysis entomology.pptx

All includes risk analysis on pesticides effect

1. WELCOME

2. DEEN DAYAL UPADHYAYA GORKHPUR UNIVERSITY SUBMITTED BY RAJNIKANT PANDEY M.Sc. Ag (ENTOMOLOGY) 3 rd SEMESTER SUBMITTED TO DR. SAROJ CHAUHAN ( Assist. Prof. ) (H.O.D) OF AG. ENTOMOLOGY I.A.N.S DDU GORKHPUR COURSE :- ENT 508 – CONCEPT OF INTEGRATED PEST MANAGEMENT TOPIC :- Pesticides Risk Analysis

3. PESTICIDES RISK ANALYSIS Pesticide Risk Analysis is a process that assesses the potential harm to humans and the environment from the use of pesticides. All pesticides pose some level of risk . A ‘ risk Analysis ’ is the process for evaluating the risk and benefits of using a pesticide.

4. Risk assessments is crucial to the process of making decisions about pesticides, both new and existing ; New pesticides must be evaluated before they can enter the market . Existing pesticides must be re-evaluated periodically to ensure that they continue to meet the appropriate safety standard.

5. TYPES OF RISK ANALYSIS: Two types of Pesticide Risk Analysis:

6. Human health Risk Assessments:- This assesses p ossible health risks to humans who might be exposed to pesticides in water , food , air , and other activities. Four steps of a human health risk assessment are;

7. Ecological Risk Assessments:- Ecological Risk Assessments look at how wildlife , plants , and water sources can be affected by a pesticide. They require data on plant and animal toxicity, as well as environmental fate. Requires information on the toxicity of pesticides to different species and how those chemicals behave and persist in the environment

8. Several organizations perform formal risk assessments about pesticides. For example :- The WHO evaluates potential cancer risks, risks from food residue , and risks to the environment . Some organizations consider the hazards and the likely exposure (routes and amounts) when evaluating risk. In United State, the EPA identifies the hazards and potential exposures before calculating the overall risk.

9. Most pesticides go through extensive chemical , health , and safety studies .

10. Product Chemistry:  This assesses the chemical composition and properties of the pesticide . Hazards to Humans and Pets:  This evaluates the potential risks the pesticide poses to humans and domestic animals . Hazard to Non-target Organisms:  This examines the potential harm the pesticide could cause to organisms other than the intended pests . Post-Application Exposure:  This assesses exposure levels to the pesticide after it has been applied . Pesticide Spray Drift Evaluation:  This evaluates the potential for the pesticide to drift from the intended application area .

11. Environmental Fate:  This studies how the pesticide behaves and breaks down in the environment . Residue Chemistry:  This determines the levels of pesticide residues that may remain on treated crops or in the environment . Oral toxicity:  This assesses the harmful effects of the pesticide when ingested . Dermal toxicity:  This assesses the harmful effects of the pesticide when it comes into contact with the skin . Inhalation toxicity:  This assesses the harmful effects of the pesticide when inhaled .