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Sewer odour is toxic and Biosol offers superior odour control
Research shows that Biosol can reduce hydrogen sulphide (H2S) gas by up to 80% when compared with Magnesium Hydroxide and Ferrous Chloride dosing.
Non-Hazardous
Biosol is classified as a non-hazardous substance, providing a lower risk for operators and management, from a WH&S perspective.
How toxic is sewer odour
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.
Work Health and Safety Risk to operators and management from sewer odour.
| Exposure (ppm) | Effect/Observation | Reference |
|---|---|---|
| 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 | WHO 2003 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 | WHO 2003 ATSDR 1999 |
| 100 | Olfactory paralysis | ATSDR 1999 |
| >560 | Respiratory distress | WHO 2003 |
| 700 | Death | WHO 2003 |