AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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OECD SIDS AMMONIUM SULFATE 3. ENVIRONMENTAL FATE AND PATHWAYS ID: 7783-20-2 DATE: 18.04.2006 Average outdoor total coarse-particle, ammonium, and sulfate concentrations ranged from 6590 - 12340 ng/m3 , 1-26 ng/m3 and 230 - 725 ng/m3, respectively. Indoor concentrations of ammonium and sulfate were
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
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OECD SIDS AMMONIUM SULFATE FOREWORD
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OECD SIDS AMMONIUM SULFATE 10. Comm
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OECD SIDS AMMONIUM SULFATE Similarl
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OECD SIDS AMMONIUM SULFATE Consumer
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OECD SIDS AMMONIUM SULFATE 1.3 Phys
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OECD SIDS AMMONIUM SULFATE - in the
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AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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