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Story of one of our installations: Gangotri Glacier, Himalayas

Story of one of our installations: Gangotri Glacier, Himalayas

In 2015 Aethalometers AE33 were installed for Wadia institute of Himalayan Glaciarology in Dehradoon, India. Two sites – Bhojwasa (3,800 mts MSL) and Chirbasa (3600 mts MSL) near Gangotri are run by Dr. P.S. Negi. Dokriani site (3900 mts MSL) in Bhagirathi basin is run by Dr. D.P. Dobhal. The sites are measuring Black Carbon aerosols using Aethalometers AE33. Main sources on these sites are bio mass burning and transported aerosols. Gangotri town has the a lot of diesel generators, which could also be a potential source in Bhojwasa and Chirbasa sites. The aim of these studies is long term measuring of Black Carbon in Himalayan region, to study the Glacier melting and climate change. Sites have access two times in a year. There is no internet available at site: data is saved on Aethalometer AE 33, collected when visiting the sites and brought back to WIHG Dehradoon for analysis. The autonomy of the site was a big challenge. The whole set up, including Aethalometer AE33 and Co2 sensor, is kept inside a special IP65 boxes which were insulated by M&G using PE foam sheets from inside to keep the electronics warm. This whole set was put inside a hut to protect from rain and snow.

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Total Carbon Analyzer

Total Carbon Analyzer

The Magee Scientific Real-Time Total Carbon Analyzer, Model TCA-08, is a revolutionary scientific instrument that measures the Total Carbon Content (TC) of suspended aerosol particles in near-Real Time.

Total Carbon Analyzer enables continuous analysis of Total Carbon content of aerosol with two identical flow channels for sampling and analysis.

REAL-TIME
Timebase for sampling and analysis is adjustable from 15 minutes to 24 hours.

NO GAS, NO GLASS
Ambient eir is used as carrier gas at low flow rate so there is no need for gas supplies.

Rugged elements and chambers are made of stainless steel with no glass.

OC/EC DETERMINATION
In combination with Aethalometer AE33 the TCA-08 provides a complete identification and quantitation of the carbonaceous component of ambient aerosols in near-Real Time.

PLUG & PLAY
This enables easy maintence, operation and instalation of the instrument.

Total Carbon Analyzer model TCA-08 comes in a rugged instrument package suitable for laboratory and Air Quality monitoring applications.

Please check spec sheet for detailed information or contact us.

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IMPROVED MEASUREMENT OF BLACK CARBON WITH AETHALOMETER AE33

IMPROVED MEASUREMENT OF BLACK CARBON WITH AETHALOMETER AE33

Aerosol Black Carbon is a unique primary tracer for combustion emissions. It affects the optical properties of the atmosphere and is recognized as the second most important anthropogenic forcing agent for climate change. It is the primary tracer for adverse health effects caused by air pollution.

For the accurate determination of mass equivalent Black Carbon concentrations in the air and for source apportionment of the concentrations, optical measurements by filter-based absorption photometers must take into account the “filter loading effect”.

Aethalometer AE33 is the only BC monitor that compensates the filter spot loading effect in real-time. The compensating parameter (‘k’) indicates the particle coating rate, thus differ local from regional emissions. This is a unique feature of Aethalometer AE33.

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