PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Malathion on Amphibians

Use(s): Insecticide    Chem Class: Organophosphorus    U.S. EPA PC Code:057701, 857701    CAS Number: 121-75-5
Sorted by Organism Group, Scientific Name and LC50. Species summary toxicity data are derived from the U.S. EPA AQUIRE database.
Records 1 to 17 of 17
Common Name Scientific Name Avg Species LC50 (ug/L) LC50 Std Dev Number of Studies Avg Species Rating Outlier Result for Organism Group?


Frog and toad order Anura 5,000 - 1 Moderately Toxic  
American toad Bufo americanus 5,900 - 1 Moderately Toxic  
Toad Bufo arenarum 19,200 - 1 Slightly Toxic  
Woodhouse's Toad Bufo woodhousei 420.0 - 1 Highly Toxic  
Fowler's toad Bufo woodhousei fowleri 940.0 679.6 3 Highly Toxic  
Gray tree frog Hyla versicolor 4,130 - 1 Moderately Toxic  
Striped, Northern chorus frog Pseudacris triseriata 320.0 169.7 3 Highly Toxic  
Western chorus frog Pseudacris triseriata triseria 320.0 - 1 Highly Toxic  
Bullfrog Rana catesbeiana 1,500 - 1 Moderately Toxic  
Green frog Rana clamitans 3,650 - 1 Moderately Toxic  
Frog Rana hexadactyla 1.24 1.15 5 Very Highly Toxic  
Bog frog Rana limnocharis 2,271 - 1 Moderately Toxic  
Leopard frog Rana pipiens 2,400 - 1 Moderately Toxic  
Lowland frog Rana ridibunda 38,000 - 1 Slightly Toxic Outlier 
Wood frog Rana sylvatica 1,250 - 1 Moderately Toxic  
Tiger frog, indian bullfrog Rana tigrina 170.0 - 1 Highly Toxic  
Clawed toad Xenopus laevis 10,900 - 1 Slightly Toxic  
Records 1 to 17 of 17
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