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The aethalometer.

The aethalometer.

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Continuous measurement of black carbon (BC) concentrations in ambient air was performed using the optical-based instrument called aethalometer. The attenuation of light by BC was measured at 7 different wavelengths. This gives not only the pure concentration of BC in the ambient air but also dependence of attenuation on the wavelength of light, fro...

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Context 1
... instrument for the measurement of BC concentration is called aethalometer (the word comes from the classical Greek verb aethaloun which means "to blacken with soot"). The AE33 aethalometer, Magee Scientific, USA (Figure 1) is used in this research. The main specifications of AE33 are: • 7 measurement wavelengths: 370, 470, 520, 590, 660, 880 and 950 nm, • Airflow: set-points of 2, 3, 4, and 5 LPM, • Max power consumption: 90 W. Typical power consumption: 25 W. Figure 2 shows the flow diagram of AE33. ...
Context 2
... instrument for the measurement of BC concentration is called aethalometer (the word comes from the classical Greek verb aethaloun which means "to blacken with soot"). The AE33 aethalometer, Magee Scientific, USA (Figure 1) is used in this research. The main specifications of AE33 are: • 7 measurement wavelengths: 370, 470, 520, 590, 660, 880 and 950 nm, • Airflow: set-points of 2, 3, 4, and 5 LPM, • Max power consumption: 90 W. Typical power consumption: 25 W. Figure 2 shows the flow diagram of AE33. ...

Citations

... The black carbon facility is one component of a larger project of our research group, where different aspects of air pollution are observed and compared, including toxic gases [13], [14], and particulate matter [15]- [21]. We have used this technique previously [22], but this time, a new location is included: the city of Zenica. Figure 1 shows two measurement locations: one in Sarajevo (Faculty of Mechanical Engineering, N 43° 51' 15'', E 18° 23' 46'') and one in Zenica (Radakovo, N 44° 11' 43'', E 17° 55' 55''). ...