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Fipronil
• Fipronil is a chemical which is used as insecticide.
• Fipronil belong to chemical family phenylphyrazol.
• These are white powder with a moldy odor.
• Fipronil is used to control Ants, termites, rootworms, weevils, and many others
insects.
• First registered for used in United state.
structure
 5-amino-1-(2-6-dichloro-4-(trifluoromethyl)phenyl)-4-((trifluoromethyl)sulfinyl)-1H-
pyrazole-3-carbonitrile
How does fipronil works?
 Fipronil kills insects when they eat it or come in contact with it.
 Fipronil works by disrupting the normal function of central nervous system in
insects.
 Fipronil is more toxic to insect than human and pets.
What happens to fipronil when it enter the
human body?
 Fipronil enter the human body through skin and orally.
 Once in the body, fipronil is found in fatty tissue, and breaks down in smaller
chemicals called metabolites.
 These metabolites are than removed from the body mostly through feces and also
in the urine.
Sign of toxicity
 Clinical signs and symptoms reported after ingestion of fipronil by
human include.
 Sweating, nausea, agitation, weakness, dizziness, headache,
abdominal pain.
 These signs of exposure to fipronil are generally reversible and resolve
spontaneously.
What happens to fipronils in the enviroments
 In the soil, naturally occurring organisms breakdown fipronil into its
metabolites.
 Breakdown by sunlight.
 It has very short half life about 125 days.
 Fipronil does not mix very well with water.
 Less soluble in water.
Advantages and disadvantages
 They play a critical role in controlling insect-born diseases and preserving
crop health.
 Protecting or increasing yields in food production.
 They are used in seed coating.
 However the use of insectides can have negative impact on non-targeted species.
 The environment and human health.
 Excessive use of insecticides has led to the disturbance of normal balance of
nature and deline of some living species.
 These chemical can cause acute poisoning and long-term health effects.

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presentation enviromental chemistry 1.pptx

  • 1. Fipronil • Fipronil is a chemical which is used as insecticide. • Fipronil belong to chemical family phenylphyrazol. • These are white powder with a moldy odor. • Fipronil is used to control Ants, termites, rootworms, weevils, and many others insects. • First registered for used in United state.
  • 3. How does fipronil works?  Fipronil kills insects when they eat it or come in contact with it.  Fipronil works by disrupting the normal function of central nervous system in insects.  Fipronil is more toxic to insect than human and pets.
  • 4. What happens to fipronil when it enter the human body?  Fipronil enter the human body through skin and orally.  Once in the body, fipronil is found in fatty tissue, and breaks down in smaller chemicals called metabolites.  These metabolites are than removed from the body mostly through feces and also in the urine.
  • 5. Sign of toxicity  Clinical signs and symptoms reported after ingestion of fipronil by human include.  Sweating, nausea, agitation, weakness, dizziness, headache, abdominal pain.  These signs of exposure to fipronil are generally reversible and resolve spontaneously.
  • 6. What happens to fipronils in the enviroments  In the soil, naturally occurring organisms breakdown fipronil into its metabolites.  Breakdown by sunlight.  It has very short half life about 125 days.  Fipronil does not mix very well with water.  Less soluble in water.
  • 7. Advantages and disadvantages  They play a critical role in controlling insect-born diseases and preserving crop health.  Protecting or increasing yields in food production.  They are used in seed coating.
  • 8.  However the use of insectides can have negative impact on non-targeted species.  The environment and human health.  Excessive use of insecticides has led to the disturbance of normal balance of nature and deline of some living species.  These chemical can cause acute poisoning and long-term health effects.