AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 7783-20-2
DATE: 18.04.2006
Type of measurement: background concentration
Medium:
sediment
Remark:
Ammonium sulfate is found naturally in volcanic craters.
Flag:
Critical study for SIDS endpoint
26-JAN-2004 (10)
Type of measurement: background concentration
Remark:
In the frame of the German water quality monitoring program
ammonium nitrogen concentrations were measured. In 2000, the
rivers Danube, Oder, Weser, Rhine, and Elbe showed
concentrations (50th percentile) ranging from 0.04 to 0.07
mg/l.
UBA states that in Germany 624 000 t ammonia were emitted to
air in 1999
23-AUG-2005 (31)
Type of measurement: concentration at contaminated site
Medium:
other: rainwater
Method:
Remark:
Result:
Test substance:
Reliability:
Monthly bulk precipitation samples were collected on a rural
coastal island located 8-10 km from the NL mainland, for
more than 15 years (May 1972 - December 1987). Comparative
samples for an urban environment were obtained from a region
southeast of Amsterdam, for the years 1973-1982 inclusive.
Monthly bulk precipitation
Higher levels of ammonium and sulfate in bulked rainwater
were found in the coastal island rural environment than at
Ouderkerk. The higher rural concentration of ammonium at
Schiermonnikoog is ascribed to dry deposited NH3 in the
collectors, due to substantial cattle breeding.
The precipitation weighted averages of monthly concentreations
of the dissolved substances in bulk precipitation for
Schiermonnkoog during May 1972 - 1987 were 2.684 mg/l (
converted from 149.1 µmol/l) and 6.65 mg/l (converted from
69.3 µmol/l) respectively, with seasonal variations showing
higher values in late winter/early spring, and lower values in
autumn. For Ouderkerk no concentrations were reported.
ammonium and sulfate, obtained from rainwater.
(1) valid without restriction
study well documented and assignable
Critical study for SIDS endpoint
Flag:
28-MAY-2004 (32)
Type of measurement: other: calculation of consumer exposure
Remark:
Sulfates are natural components of food; ammonium sulfate is
"generally recognized as safe (GRAS)" and approved as a food
additive in the U.S. (FDA 2003) and in Europe (E 517; EU,
1995). From this data it can be seen that consumer exposure to
sulfate is low: 453 mg per day via food, 48 mg per day via
drinking water assuming 2 l drinking water per day and 0.63 ug
per day via air assuming 20 m3 respiratory volume. Ammonia
intake via food is 18 mg/day. Endogenous production of ammonia
(4000 mg/day) is about 2 orders of magnitude higher than
exogenous intake (ammonia and ammonium) via food (20 mg/day),
air (< 1 mg/day) and water (< 1mg/day) (WHO, 1986, 1996,
UNEP PUBLICATIONS 67