MSDS

COMPARE•N•SAVE
®
CONCENTRATE MATERIAL SAFETY DATA SHEET
GRASS & WEED KILLER 41% GLYPHOSATE
Page 5 of 6 April 29, 2010
11. TOXICOLOGICAL INFORMATION (Continued)
Assessment Carcinogenicity: None listed with ACGIH, IARC, NTP or OSHA.
See Section 2: HAZARDOUS IDENTIFICATION for more information.
12. ECOLOGICAL INFORMATION
Do not apply directly to water, to areas where surface water is present or to intertidal areas below the
mean high water mark. Do not contaminate water when disposing of equipment washwaters.
Available data on similar formulations suggest that this product would be slightly to moderately toxic to
aquatic organisms and practically non-toxic to avian species, honey bees and earthworms.
Ecotoxicity:
Data from laboratory studies conducted on a similar, but not identical, formulation:
Rainbow Trout 96-hr LC
50
: 22 mg/L (static) Fathead minnow 96-hr LC
50
: 9.4 mg/L
Rainbow Trout 96-hr LC
50
: 8.2 mg/L (dynamic) Channel Catfish 96-hr LC
50
: 16 mg/L
Daphnia Magna 48-hr LC
50
: 37 mg/L (aeration) Chinook Salmon 96-hr LC
50
: 20 mg/L
Daphnia Magna 48-hr LC
50
: 24 mg/L (without aeration) Coho Salmon 96-hr LC
50
: 22 mg/L
Bluegill Sunfish 96-hr LC
50
: 5.8 mg/L (dynamic) Bobwhite Quail 8-day LC
50
: >6,300 ppm
Bluegill Sunfish 96-hr LC
50
: 14 mg/L (static) Mallard Duck 8-day LC
50
: >6,300 ppm
Gammarus pseudolimnaeus 48-hr EC
50
: 42 mg/L Algae S. Capricornutum 72-hr EC
50
: 2.1 mg/L
Environmental Fate:
In the environment, salts of glyphosate rapidly dissociate to glyphosate, which adsorbs strongly to soil
and is expected to be immobile in soil. Glyphosate is readily degraded by soil microbes to AMPA
(aminomethyl phosphonic acid) that is further degraded to carbon dioxide. Glyphosate and AMPA are
unlikely to enter ground water due to their strong adsorptive characteristics. Terrestrially-applied
glyphosate has the potential to move into surface waters through soil erosion because it may be
adsorbed to soil particles suspended in the runoff. Aquatic applications registered for certain formulations
may also result in glyphosate entering surface waters. Complete degradation is slow, but dissipation in
water is rapid because glyphosate is bound in sediments and has low biological availability to aquatic
organisms. These characteristics suggest a low potential for bioconcentration in aquatic organisms and
this has been verified by laboratory investigations of glyphosate bioconcentration in numerous marine and
freshwater organisms with and without soil. The maximum whole body bioconcentration factors for fish
were observed to be less than 1X. Bioconcentration factors for sediment dwelling mollusks and crayfish
tended to be slightly higher, but were always less than 10X. In addition, any residues accumulated in
organism were rapidly eliminated.
13. DISPOSAL CONSIDERATIONS
Do not contaminate water, foodstuffs, feed or seed by storage or disposal.
Pesticide Disposal:
Nonrefillable container. Do not reuse or refill this container. If empty: Place in trash or offer for recycling if
available. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused
product down any indoor or outdoor drain.