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13. Pesticide Pollution to spec

A Level Environmental Science Revision LIPOSOLUBLE IMPLIES BIOACCUMULATION AND BIOMAGNIFICATION OKKK
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Last updated: May 17, 2025
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First submittedApril 22, 2025
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Answer
Why pesticides are unusual pollution
Intentionally toxic
Why pesticides are unusual pollution
Deliberately dispersed
Toxicity factors
Specificity
Toxicity factors
Persistance
Toxicity factors
Bioaccumulation
Toxicity factors
Biomagnification
Toxicity factors
Synergy
Mobility factors
Persistance
Mobility factors
Solubility
Mobility factors
Vaporisation
MDNF
Maximum Dose Never Fatal
MDAF
Minimum Dose Always Fatal
Effects of pesticides
Non-target species
Effects of pesticides
Food chain impacts
Effects of pesticides
Interspecies relationships
Effects of pesticides
Ecosystem services
Non-lethal doses can cause...
Ill health
Non-lethal doses can...
Inhibit metabolic processes
DDT is an
Organochloride
B+B of DDT caused birds to...
Lay eggs with thin shells
B+B of DDT caused _______ in birds, reducing _______ _______ and bird _________
Sterility, breeding success, populations
Type of pesticide
Organochlorides
Type of pesticide
Organophosphates
Type of pesticide
Pyrethroids
Type of pesticide
Neonicotinoids
Organochlorine toxicity
High insect, low vertebrate
Features of organochlorines (2)
Persistent, liposoluble
Introduction of organochlorines for +year
Pests that carry human pathogens 1940s
Negative impacts of organochlorines (4 words)
Kills bees, beetles, butterflies
Negative impacts of organochlorines
Bioaccumulation and biomagnification
Negative impacts of organochlorines
Kills predatory vertebrates
Predator example
Birds of prey
Predator example
Otters
Organophosphate toxicity
High insect, high mammalian
Benefits of organophosphates (4 words)
Low persistance and liposolubility
Impacts of organophosphates
Neurotoxin
Impacts of organophosphates
Damages nerve function
Impacts of organophosphate chronic exposure
Impaired memory
Impacts of organophosphate chronic exposure
Behavioural changes
Pyrethroid toxicity (6 words)
High insect and fish, low mammalian
Benefits of pyrethroids (4 words)
Low persistance and liposolubility
Pyrethroids should not be used near... (2)
Fish farms, rivers
Neonicotinoid toxicity
High insect, low vertebrate
Features of neonicotinoids
Relatively persistent
Features of neonicotinoids
Water soluble
Features of neonicotinoids
Synergism with fungicides
Features of neonicotinoids
Photochemical degradation
Impacts of neonicotinoids
Neurotoxin
Impacts of neonicotinoids
Reduced navigation ability
Impacts of neonicotinoids
Reduced disease immunity
Impacts of neonicotinoids
Bee toxin
Features of Ns (5 words)
May build up in aquifers
Controls
Restrictions
Controls
Bans
Controls
Non-persistant
Controls
Specific
Controls
Systemic
Controls
Application timing
Controls
Biological techniques
Specific pesticides avoid harming...
Non target species
Systemic pesticides are _________ and ___________ so they are present in ____ _______.
Absorbed, translocated, plant tissues
Systemic pesticides protect...
Future growth
Application timing
Low winds
Application timing
Night time
Application timing
Not flowering
Biological techniques
Crop rotation
Biological techniques
Barrier crops
Biological techniques
Genetic modification
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