PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Chlorpyrifos on All Taxa Groups

Use(s): Insecticide, Nematicide    Chem Class: Organophosphorus    U.S. EPA PC Code:059101    CAS Number: 2921-88-2
Sorted by Organism Group, Scientific Name and LC50. Species summary toxicity data are derived from the U.S. EPA AQUIRE database.
Records 1 to 50 of 182
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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?

Amphibians

Bog frog Rana limnocharis 2,401 - 1 Moderately Toxic  
Tiger frog, indian bullfrog Rana tigrina 66.2 70.2 6 Very Highly Toxic  
Clawed toad Xenopus laevis 5,471 6,496 6 Moderately Toxic  

 
Annelida

Oligochaete Branchiura sowerbyi 66.0 - 1 Very Highly Toxic  

 
Crustaceans

Amphipod Ampelisca abdita 0.39 - 2 Very Highly Toxic  
Fairy shrimp order Anostraca 0.53 0.14 2 Very Highly Toxic  
Chinese Mitten Crab Eriocheir sinensis 2,959 6,958 14 Moderately Toxic Outlier 
White shrimp Litopenaeus vannamei 4.80 - 1 Very Highly Toxic  
Opossum shrimp Neomysis integer 0.16 0.02 3 Very Highly Toxic  
Crayfish Orconectes immunis 6.00 - 1 Very Highly Toxic  
Crab Oziotelphusa senex senex 623.3 291.5 15 Highly Toxic  
Pink shrimp, common prawn Palaemon serratus 0.28 0.06 2 Very Highly Toxic  
Shrimp Paratya australiensis 0.18 0.08 11 Very Highly Toxic  
White river crayfish Procambarus acutus acutus 2.00 - 1 Very Highly Toxic  
Red swamp crayfish Procambarus clarkii 28.8 8.45 5 Very Highly Toxic  
Amphipod Rhepoxynius abronius 0.10 - 2 Very Highly Toxic  
Fairy shrimp Thamnocephalus platyurus 0.53 - 1 Very Highly Toxic  
Tadpole shrimp Triops longicaudatus 4.00 - 1 Very Highly Toxic  

 
Fish

Common eel Anguilla anguilla 777.5 300.8 4 Highly Toxic  
Topsmelt Atherinops affinis 5.00 0.50 2 Very Highly Toxic  
Barb Barbus barbus plebejus 0.80 - 1 Very Highly Toxic  
Silver perch Bidyanus bidyanus 17.0 - 1 Very Highly Toxic  
Goldfish Carassius auratus 806.0 - 1 Highly Toxic  
Crucian carp Carassius carassius 14.0 - 1 Very Highly Toxic  
Catla Catla catla 3,440 2,692 10 Moderately Toxic Outlier 
Snake-head catfish Channa punctata 365.0 - 1 Highly Toxic  
Carp, hawk fish Cirrhinus mrigala 3,914 2,841 9 Moderately Toxic Outlier 
Sheepshead minnow Cyprinodon variegatus 160.7 81.1 3 Highly Toxic  
Cyprinus carpio 71.6 102.4 13 Very Highly Toxic  
Northern pike Esox lucius 3.30 - 1 Very Highly Toxic  
Mummichog Fundulus heteroclitus 4.65 - 1 Very Highly Toxic  
Longnose killifish Fundulus similis 4.10 - 1 Very Highly Toxic  
Western mosquitofish Gambusia affinis 334.8 265.0 31 Highly Toxic  
Threespine stickleback Gasterosteus aculeatus 10.1 2.31 3 Very Highly Toxic  
Indian catfish Heteropneustes fossilis 2,570 421.4 5 Moderately Toxic Outlier 
Channel catfish Ictalurus punctatus 437.0 274.2 6 Highly Toxic  
Rohu Labeo rohita 3,950 2,760 10 Moderately Toxic Outlier 
Spot Leiostomus xanthurus 7.00 - 1 Very Highly Toxic  
Green sunfish Lepomis cyanellus 34.5 10.7 5 Very Highly Toxic  
Bluegill Lepomis macrochirus 7.99 9.96 17 Very Highly Toxic  
California grunion Leuresthes tenuis 1.64 0.68 21 Very Highly Toxic  
Inland silverside Menidia beryllina 7.20 3.00 2 Very Highly Toxic  
Atlantic silverside Menidia menidia 2.46 1.44 25 Very Highly Toxic  
Tidewater silverside Menidia peninsulae 1.81 1.35 25 Very Highly Toxic  
Striped bass Morone saxatilis 500.3 499.7 2 Highly Toxic  
Striped mullet Mugil cephalus 5.40 - 1 Very Highly Toxic  
Golden shiner Notemigonus crysoleucas 38.3 4.71 3 Very Highly Toxic  
Cutthroat trout Oncorhynchus clarki 42.9 39.0 8 Very Highly Toxic  
Rainbow trout,donaldson trout Oncorhynchus mykiss 64.4 126.6 19 Very Highly Toxic  
Gulf toadfish Opsanus beta 520.0 - 1 Highly Toxic  
Records 1 to 50 of 182
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