PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Malathion on Molluscs

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 29 of 29
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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?

Molluscs

Fresh-water mussel Anodonta anatina 105,464 197,492 5 Not Acutely Toxic  
Swan mussel Anodonta cygnea 56,516 85,660 5 Slightly Toxic  
Snail Bellamya bengalensis 17,500 - 1 Slightly Toxic  
Ghost rams-horn Biomphalaria havanensis 143,270 39,477 4 Not Acutely Toxic  
American or virginia oyster Crassostrea virginica 2,660 - 1 Moderately Toxic  
Variable spike Elliptio icterina 49,250 10,709 4 Slightly Toxic  
Unionid clam Indonaia caerulea 13.0 1.00 2 Very Highly Toxic  
Marine bivalve Katelysia opima 6.00 - 1 Very Highly Toxic  
Bivalve Lamellidens corrianus 192.9 74.7 4 Highly Toxic  
Mussel Lamellidens marginalis 40,261 49,178 5 Slightly Toxic  
Lamp-mussel Lampsilis siliquoidea 32,000 24,566 4 Slightly Toxic  
Southern fatmucket Lampsilis straminea claibornen 43,500 13,739 4 Slightly Toxic  
Shiny-rayed pocketbook Lampsilis subangulata 33,750 5,585 4 Slightly Toxic  
Yellow sandshell Lampsilis teres 28,000 - 1 Slightly Toxic  
Pond snail Lymnaea acuminata 27.5 10.6 2 Very Highly Toxic  
Great pond snail Lymnaea stagnalis 12,900 3,123 5 Slightly Toxic  
Washboard mussel Megalonaias nervosa 22,000 - 1 Slightly Toxic  
Salt marsh snail Melampus bidentatus 112,500 12,500 2 Not Acutely Toxic  
Mediterranean mussel Mytilus galloprovincialis 6,000 - 1 Moderately Toxic  
Apple snail Pila globosa 12,745 2,745 2 Slightly Toxic  
Great ramshorn snail Planorbis corneus 88,240 17,708 5 Slightly Toxic  
Snail Pomacea canaliculata 18,680 - 1 Slightly Toxic  
Snail Thiara lineata 40.0 8.90 2 Very Highly Toxic  
Snail Thiara scabra 43.2 5.75 2 Very Highly Toxic  
Mussel Unio pictorum 31,250,000 - 1 Not Acutely Toxic Outlier 
Mussel Utterbackia imbecilis 277,722 123,412 18 Not Acutely Toxic  
Little spectacle case Villosa lienosa 147,083 60,055 12 Not Acutely Toxic  
Downy rainbow mussel Villosa villosa 234,300 100,910 10 Not Acutely Toxic  
Snail Viviparus bengalensis 3,778 2,364 14 Moderately Toxic  
Records 1 to 29 of 29
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