PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Chlorpyrifos on Insects

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 82
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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?

Insects

Yellow fever mosquito Aedes aegypti 35.1 44.0 38 Very Highly Toxic  
Mosquito Aedes albopictus 530.6 525.5 8 Highly Toxic  
Mosquito Aedes atropalpus 0.60 - 1 Very Highly Toxic  
Mosquito Aedes canadensis 0.61 0.26 2 Very Highly Toxic  
Mosquito Aedes cantans 1.10 - 1 Very Highly Toxic  
Mosquito Aedes communis 1.20 - 1 Very Highly Toxic  
Mosquito Aedes excrucians 3.30 - 1 Very Highly Toxic  
Mosquito Aedes punctor 2.70 - 1 Very Highly Toxic  
Floodwater mosquito Aedes sticticus 0.50 - 1 Very Highly Toxic  
Mosquito Aedes triseriatus 0.69 0.48 4 Very Highly Toxic  
Mosquito Aedes vexans 1.21 0.68 5 Very Highly Toxic  
Mosquito Anopheles albimanus 8.00 - 1 Very Highly Toxic  
Mosquito Anopheles coustani 22.0 - 1 Very Highly Toxic  
Mosquito Anopheles freeborni 1.87 0.89 13 Very Highly Toxic  
Mosquito Anopheles gambiae 4.15 2.75 2 Very Highly Toxic  
Common malaria mosquito Anopheles quadrimaculatus 1.00 - 1 Very Highly Toxic  
Mosquito Anopheles stephensi 0.55 0.35 2 Very Highly Toxic  
Giant water bug Belostoma sp. 15.0 - 2 Very Highly Toxic  
Beetle Berosus styliferus 9.00 - 2 Very Highly Toxic  
Mayfly Caenis sp. 2.45 - 1 Very Highly Toxic  
Midge Chaoborus americanus 1.50 0.63 3 Very Highly Toxic  
Midge Chaoborus obscuripes 6.60 - 1 Very Highly Toxic  
Phantom midge Chaoborus punctipennis 5.40 - 1 Very Highly Toxic  
Midge Chironomus crassicaudatus 52.0 - 1 Very Highly Toxic  
Midge Chironomus decorus 20.6 20.4 5 Very Highly Toxic  
Midge Chironomus plumosus 98.3 84.1 15 Very Highly Toxic  
Midge Chironomus riparius 924.8 1,308 3 Highly Toxic  
Midge Chironomus salinarius 0.99 - 1 Very Highly Toxic  
Midge Chironomus sp. 0.60 - 1 Very Highly Toxic  
Midge Chironomus tentans 0.33 0.25 5 Very Highly Toxic  
Rice bloodworm Chironomus tepperi 1.30 - 1 Very Highly Toxic  
Midge Chironomus utahensis 2.60 1.98 3 Very Highly Toxic  
Stonefly Claassenia sabulosa 3.52 3.34 3 Very Highly Toxic  
Mayfly Cloeon dipterum 0.52 0.34 3 Very Highly Toxic  
Mayfly Cloeon sp. 0.05 - 1 Very Highly Toxic  
Water boatman Corixa punctata 3.31 1.90 3 Very Highly Toxic  
Midge Cricotopus sp. 75.5 51.5 3 Very Highly Toxic  
Dragonfly Crocothemis erythraea 5.80 - 1 Very Highly Toxic  
Mosquito Culex antennatus 120.0 - 1 Highly Toxic  
Mosquito Culex melanurus 1.30 0.79 4 Very Highly Toxic  
Mosquito Culex peus 1.05 0.17 4 Very Highly Toxic  
Northern house mosquito Culex pipiens 7.55 13.8 30 Very Highly Toxic  
House mosquito Culex pipiens fatigans 0.80 - 1 Very Highly Toxic  
Mosquito Culex pipiens molestus 1.20 - 1 Very Highly Toxic  
Mosquito Culex pipiens pallens 30.2 - 1 Very Highly Toxic  
Mosquito Culex pipiens pipiens 0.82 0.55 3 Very Highly Toxic  
Mosquito Culex pipiens quinquefasciata 0.94 0.38 11 Very Highly Toxic  
Southern house mosquito Culex quinquefasciatus 117,170 334,072 43 Not Acutely Toxic Outlier 
White dotted mosquito Culex restuans 0.40 0.06 3 Very Highly Toxic  
Mosquito Culex sp. 26.0 - 1 Very Highly Toxic  
Records 1 to 50 of 82
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