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EC number: 231-984-1
CAS number: 7783-20-2
1: Arterial Blood Measurements after 1, 3, 7, 14 days exposure to 300
mg/m3 Ammoniumsulfate (N=10 for all groups). Arterial blood gases, pH,
and bicarbonate of rats exposed 1, 3, 7 or 14 days are shown in Table 1.
No significant differences could be detected between control and exposed
rats for any of the parameters measured.
Arterial PO2 (Torr)
Arterial PCO2 (Torr)
2: Repeated body weight measurements, vital capacity residual volume and
wet lung weights of rats exposed 14 days to 300 mg/m3 ammonium sulfate
(N=for all groups). Body weights, VC, RV and wet lung weights of rats
exposed 14 days to 300 mg/m³ ammonium sulfate are shown in Table 2.
Again, none of these parameters were significantly affected by exposure.
Histological examination of the trachea, bronchial lymph nodes and lungs
revealed no changes that could be definitely attributed to exposure.
The authors concluded that inhaled ammonium
sulfate is relatively non-toxic except at very high concentrations. They
also concluded that any concentration of sulfuric acid likely to be
present in the atmosphere is probably non-toxic since the chances of
neutralization to ammonium sulfate in the respiratory tract is very
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