Assessment of spatio-temporal of black carbon aerosols in urban and suburban Klang Valley, Malaysia

YAMAN, MUNIRAH (2020) Assessment of spatio-temporal of black carbon aerosols in urban and suburban Klang Valley, Malaysia. [Project Paper] (Submitted)

Text FPSK4 2020 53.pdf Download (1MB)

Abstract

Introduction: Black carbon (BC) is a global environmental problem for air pollution as it gives negative consequences to human health and climate. Vehicle and biomass emission are the main sources that contribute to the BC emission. Investigating the concentrations of BC is crucial as the concentration varied in time and space. Objective: This study aims to determine the real-time Spatio-temporal of black carbon aerosol concentration in urban and suburban Klang Valley. Methodology: The BC particle was measured using Aethalometer AE33 (Magee Scientific, USA) which was deployed at the rooftop of two campus faculty from July 2019 until October 2019 in Kuala Lumpur (urban) and Serdang (suburban) from December 2019 until February 2020. The AE33 is set for 1-min temporal resolution. Results and Discussion: Our study found that the average concentration of BC was higher in the urban site (Kuala Lumpur) compared to the suburban site (Serdang) with an average value of 4.5 μg/m3 (2.3-3.5 μg/m3) and 2.5 μg/m3 (1.2-1.7 μg/m3) respectively. Temporal variation was divide into several variations; First, monthly variation data showed that the value of BC concentration from July until October 2019 for Kuala Lumpur was higher compared to Serdang month of assessment (December 2019 - February 2020). Then hourly variation was observed for Kuala Lumpur and Serdang site showed similar peaks were at around 8-9 a.m. in the range of 6.7-7.3 μg/m3 and 3.4-4.3 μg/m3 respectively. Concentration of BC was found higher in the weekdays compared to weekends due to working hour patterns for both of the sites. The diurnal variation that been observed from continuous measurements of AE33 was separated into day (from 12 am until 11 am) and night (from 12 pm until 11 pm). Day time showed 43% and 50% higher BC concentration for urban and suburban. Conclusion: This study presented the spatio-temporal variation of black carbon concentrations in the urban and suburban of Klang Valley. Traffic emissions are suggested to influence the BC concentrations and become the dominant source for Kuala Lumpur (urban) due to its location. This study provides the baseline BC real-time data and deserved further investigation. Keywords: Black carbon, Air pollution, Aethalometer AE33, Traffic, Urban and suburban

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Mr Hafizzuddin Hamidon
Date Deposited:	24 Aug 2023 02:34
Last Modified:	24 Aug 2023 02:34
URI:	http://psaspb.upm.edu.my/id/eprint/888

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