Abstract: Background and Objective: It is important to note the significance of atmospheric turbidity in evaluating local area’s air pollution. It also provides vital criteria to control the extinction of solar ultraviolet radiation from reaching the land on cloudless day. This study aims to investigate the dependence of Angstrom’s turbidity parameters in the following wavelengths 300, 320, 340, 360, 380 and 400 nm in the ultraviolet radiation. In addition, an investigation of atmospheric extinction coefficient has been undertaken. Material and Methods: The measurement was done in Bangi, Malaysia at the coordinates of 2°55' N, 101°46' E and the setting was also 50 m above sea level. The experiment was carried out using the Avantes AvaSpec spectrometer (2048×64-USB 2) between January-December, 2014. Furthermore, the Langley plot was used in the calculation of the atmospheric extinction coefficient of the wavelength from the ultraviolet spectrum. On top of that, the linear regression of best fitting method based on log-log plot of atmospheric extinction coefficient vs. wavelength was employed to explore the Angstrom parameters α and β. Results: The analysis of the results shows that, the total atmospheric extinction slightly decreasing when the wavelength increasing. On the other hand, it was observed that β value which is related to turbidity index was relatively high in dry season (April-September) with the value of 10.99-13.70. Meanwhile, the value decreased in rainy season (October-March) with the value up to 5.48. Nevertheless, the value of the Angstrom parameter α was related to the size distribution of extinction particles. Also, the wavelength exponent α varied from 0.79-2.50. It was also noted that the best value α was 1.32, recorded in the first quarter (January-March) of 2014. Conclusion: Angstrom parameters have maximum values found in mid-year. However, the minimum values were recorded in the beginning and end of the year of 2014.