AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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OECD SIDS AMMONIUM SULFATE 4. ECOTOXICITY ID: 7783-20-2 DATE: 18.04.2006 Result: No beetle mortality was found upon application of 23.52 kg Al ammonium sulfate per ha. Application of 35.29 kg ammonium sulfate / ha resulted in 4.4% beetle mortality, 24 hours after application. Test condition: TEST ORGANISMS: Adult Thermonactus basillaris (Harris) were collected in CDC minature light traps located at the Rice Research station near Crowley, Louisiana, approximately 24 hours prior to the field test. The beetles were maintained in a 45.5 l container partially filled with well water before being transported to the test site. Culex quinquefasciatus Say larvae from a laboratory colony were provided as a food source, to prevent canabalism among the beetles. TEST VESSEL: For each test, five styrofoam floats (39.37x26.67x2.54 cm) were placed throughout a previously selected rice field. Each float contained 2 holes, into each of which a 500 ml beaker was inserted. Each beaker contained 400 ml of well water and five Thermonactus basillaris (Harris) adults. The beakers were covered with a 1.27 cm hardwire mesh, to prevent beetle escape. Two additional beakers with 5 adult beetles in each served as controls for each test. TEST METHODOLOGY: Aerial application of the chemicals was made using a Grunman AgCat aircraft. Each agrichemical was applied according to rates and specifications printed on the label. Approximately 1 hr after the agriculture application, the beakers were removed from the site by suitably protected personnel, and beetle mortalities were recorded. The beakers were then transported to the laboratory, and posttreatment mortalities after 6, 12, and 24 hours were determined. Reliability: (2) valid with restrictions Concentrations not measured. Limited documentation of results. Limited description of rice field parameters. 11-MAY-2003 (101) 4.7 Biological Effects Monitoring 4.8 Biotransformation and Kinetics 4.9 Additional Remarks Memo: Remark: 140 Comment on ammonium sulfate effect on mycorrhizal funghi Effects of ammonium sulfate, deposited both as a fertiliser and as acid rain, on mycorrhizal funghi, have recently been summarised (ref). All results are dependent upon the vegetation and soil type. With regard to fertiliser deposition, several reports indicate a decrease in colonisation by ectomycorrhizal fungi (ECM), though this effect may be short lived, with 2 studies showing recovery 3 years and 13 years after fertiliser deposition. Several other reports show no decline in ECM colonisation. Reports of both types are available for pine forests, upland northern hemisphere sites, and heathland. The majority of reports do indicate some shift in the structure of the ECM community. UNEP PUBLICATIONS
OECD SIDS AMMONIUM SULFATE 4. ECOTOXICITY ID: 7783-20-2 DATE: 18.04.2006 Results from field investigations of the percentage of mycorrhizal colonisation in stands affected by acid rain deposition are equivocal, with some finding decreased ECM and AM (arbuscular mycorrhizal fungi) colonisation, and others showing no effect. However, short term glasshouse studies generally (but not always) show decreases in percentage ECM colonisation at pH values below about 3.5. Interestingly, a study at pH2.4 has shown increases ECM colonisation, presumably due to the fertilising effect of increased N input. In general, AM fungi colonisation is reduced by acid deposition, though the effect may be less obvious in heathland. Acidification also appears to have a differential effect on different AM fungi taxa. Reliability: (4) not assignable 15-MAY-2003 (102) Remark: The filter feeding fresh water mussel Lamellidens marginalis L was shown to reduce the ammonium content in a 7 day test at pH 7.5 using ammonium sulfate solutions ranging from 10 to 200 ppm ammonium sulfate, with reduction beginning on day 2 in 10 and 25 ppm solutions, day 3 in 50 ppm solutions, day 4 in 100 and 150 pm solutions, and day 5 in 200 ppm solutions. This is consistent with the overall biopurification ability shown by mussels. Reliability: (4) not assignable The description of the test and of the treatment of the controls is limited. 15-MAY-2003 (103) UNEP PUBLICATIONS 141
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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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OECD SIDS AMMONIUM SULFATE The inte
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OECD SIDS AMMONIUM SULFATE 228 µg/
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OECD SIDS AMMONIUM SULFATE 3.1.3 Ir
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OECD SIDS AMMONIUM SULFATE diarrhoe
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OECD SIDS AMMONIUM SULFATE oral exp
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OECD SIDS AMMONIUM SULFATE Table 3
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OECD SIDS AMMONIUM SULFATE No test
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OECD SIDS AMMONIUM SULFATE freshwat
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OECD SIDS AMMONIUM SULFATE Toxicity
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OECD SIDS AMMONIUM SULFATE Table 7
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OECD SIDS AMMONIUM SULFATE 6 REFERE
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OECD SIDS AMMONIUM SULFATE I U C L
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OECD SIDS AMMONIUM SULFATE 1. GENER
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OECD SIDS AMMONIUM SULFATE 2. PHYSI
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OECD SIDS AMMONIUM SULFATE 3. ENVIR
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AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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