PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Atrazine on Zooplankton

Use(s): Herbicide    Chem Class: Triazine    U.S. EPA PC Code:080803    CAS Number: 1912-24-9
Sorted by Organism Group, Scientific Name and LC50. Species summary toxicity data are derived from the U.S. EPA AQUIRE database.
Records 1 to 20 of 20
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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?

Zooplankton

Calanoid copepod Acartia clausi 17,568 6,805 3 Slightly Toxic  
Calanoid copepod Acartia tonsa 1,986 2,774 11 Moderately Toxic  
Opossum shrimp Americamysis bahia 3,200 2,200 2 Moderately Toxic  
Harpacticoid copepod Amphiascus tenuiremis 1,000 - 1 Moderately Toxic  
Brine shrimp Artemia salina 35,890 5,890 2 Slightly Toxic  
Rotifer Brachionus calyciflorus 7,840 - 1 Moderately Toxic  
Water flea Ceriodaphnia dubia 30,000 - 1 Slightly Toxic  
Water flea Ceriodaphnia reticulata 7,860 - 1 Moderately Toxic  
Water flea Daphnia magna 299,488 411,280 8 Not Acutely Toxic Outlier 
Water flea Daphnia pulex 40,000 - 2 Slightly Toxic  
Scud Diporeia sp. 1,620 1,380 2 Moderately Toxic  
Calanoid copepod Eurytemora affinis 4,106 5,334 4 Moderately Toxic  
Scud Gammarus fasciatus 5,700 - 2 Moderately Toxic  
Scud Gammarus italicus 10,100 - 1 Slightly Toxic  
Scud Gammarus pulex 10,900 4,637 3 Slightly Toxic  
Scud Hyalella azteca 12,800 11,492 5 Slightly Toxic  
Water flea Moina macrocopa 40,000 - 2 Slightly Toxic  
Daggerblade grass shrimp Palaemonetes pugio 9,500 500.0 2 Moderately Toxic  
Ciliate Tetrahymena pyriformis 22,115 16,285 2 Slightly Toxic  
Harpacticoid copepod Tigriopus brevicornis 132.9 14.5 3 Highly Toxic  
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