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Research shows that Biosol can reduce hydrogen sulphide (H2S) gas by up to 80% when compared with Magnesium Hydroxide and Ferrous Chloride dosing.
Biosol is classified as a non-hazardous substance, providing a lower risk for operators and management, from a WH&S perspective.
Sewer odour is a gas mainly composed of hydrogen sulphide (H2S), which at low levels is a nuisance, at higher levels (10ppm) causes eye and throat damage and at 700 ppm causes death.
Sewer H2S gas levels in Australia, often exceed 1,000 ppm.
|0.0005-0.01||Odour threshold||ATSDR 1999; McGavran 2001|
|0.01-0.6||Increased eye symptoms|
Increases in nausea
Increased headache, mental symptoms, diseases of nervous system and sense organs
|ATSDR 1999 (see Appendix B)|
|2||Bronchial constriction in asthmatic individuals||WHO 2003; ATSDR 1999|
|5||Increased eye complaints|
Mild respiratory, cardiovascular, musculoskeletal, and metabolic changes
ATSDR 1999 (see Appendix B)
|3.6-21||Eye irritation||WHO 2003|
|20||Fatigue, loss of appetite, headache, irritability, poor memory, dizziness|
Irritation of mucous membranes
|100||Olfactory paralysis||ATSDR 1999|
|>560||Respiratory distress||WHO 2003|