Acute and chronic effects of water-quality-criteria-based metal mixtures on three aquatic species

Technical Report · Fri Nov 01 04:00:00 EST 1985

OSTI ID:5942968

Spehar, R L; Fiandt, J T

Acute and chronic toxicity tests were conducted to determine the effects of metals combined as mixtures at proposed water-quality criteria concentrations and at multiples of the LC50 and MATC obtained from tests on six metals with three aquatic species. Arsenic, cadmium, chromium, copper, mercury, and lead combined at criterion maximum concentrations caused nearly 100% mortality to rainbow trout and daphnids (C. dubia) during acute exposure. Fathead minnows were not adversely affected at this or two times this concentration, although a mixture of 4 to 8 times the maximum value caused 15 to 60% mortality. Embryo hatchability and survival of rainbow trout were reduced at 4 times this criterion but not at the criterion average concentration.

• Research Organization: Environmental Protection Agency, Duluth, MN (USA). Environmental Research Lab.
• OSTI ID: 5942968
• Report Number(s): PB-86-122579/XAB; EPA/600/3-85/074
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
ARSENIC
ARTHROPODS
BRANCHIOPODS
CRUSTACEANS
DAPHNIA
ECOLOGICAL CONCENTRATION
ELEMENTS
FISHES
INVERTEBRATES
MERCURY
METALS
MORTALITY
POLLUTION
SEMIMETALS
TOXICITY
TROUT
VERTEBRATES
WATER POLLUTION