PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Fenthion on Crustaceans

Use(s): Insecticide, Avicide    Chem Class: Organophosphorus    U.S. EPA PC Code:053301    CAS Number: 55-38-9
Sorted by Organism Group, Scientific Name and LC50. Species summary toxicity data are derived from the U.S. EPA AQUIRE database.
Records 1 to 8 of 8
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Common Name Scientific Name Avg Species LC50 (ug/L) LC50 Std Dev Number of Studies Avg Species Rating Outlier Result for Organism Group?

Crustaceans

Aquatic sowbug Asellus brevicaudus 2,500 700.0 2 Moderately Toxic Outlier 
Aquatic sowbug Asellus hilgendorfi 650.0 - 1 Highly Toxic  
Crayfish Orconectes limosus 59.2 44.2 3 Very Highly Toxic  
Crayfish Orconectes nais 372.5 311.6 4 Highly Toxic  
Korean or Oriental shrimp Palaemon macrodactylus 4.15 1.15 2 Very Highly Toxic  
Freshwater shrimp Paratya compressa improvisa 0.81 0.29 3 Very Highly Toxic  
Northern pink shrimp Penaeus duorarum 0.32 0.11 17 Very Highly Toxic  
Tadpole shrimp Triops longicaudatus 73.8 - 1 Very Highly Toxic  
Records 1 to 8 of 8
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