7092

• UCREFRP Catalog Number: 7092
• Author: Eisler, R.
• Title: Arsenic Hazards to Fish, Wildlife, and Invertebrates
• USFW Year: 1988.
• USFW - Doc Type: A Synoptic Review.
• Copyright Material: NO

Table 3. Toxic and sublethal effects of various arsenic compounds on selected
species of terrestrial plants and invertebrates.
Ecosystem, organism, and Arsenic concentration Referencea
other variables and effects
TERRESTRIAL PLANTS
Crops
Total water soluble As Depressed crop yields
in soils at 3 to 28 mg/1.
Total soil As concen- Depressed crop yields
trations at 25 to 85 mg/kg.
Common Bermuda, grass, Cynodon dactvlon
Arsenite Plants grown on As-
amended ?gils (up to
90 mg As /kg) con-
tained up to 17 mg
As/kg dry weight in
stems, 20 in leaves,
and 304 in roots.
Fruit orchards
Inorganic arsenites
and arsenates
Soybean, Glycine max
Total As
Grasslands
Cacodylic acid
Rice, Oryza sativum
Disodium methylarsonate
Soils contain 31 to
94 mg As/kg dry
weight (vs. 2.4 in un-
treated orchards);
whole rodents contain
<0.002 mg As/kg fresh
weight (vs. nondetec-
table in untreated
orchards).
Toxic signs at plant
residues >1 mg
total As/kg.
Kill of 75% to 90% of
all species at 17
kg/ha; recovery
modest.
75% decrease in yield
at soil (silty loam)
concentrations of 50
mg/kg.
40
1
1
2
3
1
3
1