specifically regulated in the discharge permits. EPA's water quality program has published water quality criteria (for individual pollutants) and water quality standards (for water bodies) that were derived from aquatic toxicity tests. Sediment quality guidelines While sediment quality guidelines are not meant for regulation, they provide a way to rank and compare sediment quality developed by National Oceanic and Atmospheric Administration(NOAA). These sediment quality guidelines are summarized in NOAA's Screening Quick Reference Tables (SQuiRT) for many different chemicals. See also Biotic Ligand Model Clean Water Act (in the US) Ecotoxicology Cyanotoxin Freshwater biology Hydrobiology Marine pollution Oil pollution toxicity to marine fish Toxicology Poisonous fish Water management Water pollution Water purification Water quality References Aquatic ecology Environmental toxicology Water pollution