• Augmenting Air Quality Monitoring Networks

The Odosense Smart is a smart odour monitoring device specially developed to monitor odorants in the ambient atmosphere. The Odosense smart is a sensor-based IoT powered online odour monitor for peripheral monitoring across odourful sites and activities. So, the smart odour monitor is used for applications like monitoring in and around facilities like solid waste monitoring plants. Odour monitoring around solid waste plants, dump yards and landfills is very crucial as they are usually around the city vicinity and the odour nuisance could be a health hazard for the surrounding residents. It is also essential to keep a track of odour intensity to take suggestive actions like planning odour mitigation activities. Additionally, in the case of false complaints, the authorities have the data for reference purposes. Odosense Smart measures odourful parameters such as Sulfur Dioxide (SO2), Hydrogen sulphide (H2S), Ammonia (NH3), Methyl Mercaptan (CH3SH), TVOC (Benzene, Toluene, Xylene), Temperature and Humidity.

Benefits

•  Integrated monitoring solution including important odourants like SO2, H2S, NH3, CH3SH, TVOC, Light, UV, Temperature, Humidity.
• Options to attach external modules from a wide range of parameters like Wind-speed, Wind-direction, Rainfall, Ambient Noise.
• Solar compatible solution with internal battery for more than 24Hours backup.
• Wide range of communication protocols to choose from (as per solution architecture and availability).
• Easy to install using plug-and-play design. Versatile mounting availability to install on pole, wall, fence, or any existing structure.
• The low cost solution to deploy at multiple locations to establish a dense odour monitoring network.
• Using onboard calibration capability, an installed device can be calibrated on the spot without taking back to the laboratory.
• Real-time data transfer allows for appropriate environmental actions.
• Data availability in Odour Data Software Platform for further visualization and analytics.
• Odour Data API fulfils various applications and use-cases.”

Parameters

• Sulfur Dioxide (SO2)
• Hydrogen Sulfide (H2S)
• Ammonia (NH3)
• Methyl Mercaptan (CH3SH)
• TVOC (Benzene, Toluene, Xylene)
• Ambient Light and UV Radiation
• Temperature and Humidity

Technology

Odour monitoring device works on proven working principles such as NDIR, PID, Electrochemical Analysis, Semiconductor, Optical Measurement. As a part of our proprietary ‘Micro Active Sampling’ (e-breathing technology), we also have a sophisticated suction-and-exhaust system for air sample collection and monitoring inside a controlled environment. This isolates the effect of the external environment on measurement to achieve 13% higher accuracy than the industry standards.

Electrochemical Analysis – The gaseous emission is treated electrochemically, where an external potential is applied. Each species such as CO2, H2S, CH4, etc. is identified depending on their oxidation or reduction potential.

NDIR – The gases emitted from the location undergo Non-dispersive Infrared Radiation where the sample air is subjected to infrared radiation. Different gaseous molecules absorb IR at different frequencies. Hence, the amount of IR absorbed gives the volumetric concentration of each gaseous constituent.

PID – The photoionization detection method is used to quantify TVOCs present in the sample. Highly energized UV photons bombard the molecules, which ionize and make them positively charged. These ionized molecules, in return, produce an electric current which gives a volumetric concentration of the molecules. So, the higher the current generated, the higher is the gaseous concentration in the sample.