Urban roadside monitoring and prediction of CO, NO2 and SO2 dispersion from on-road vehicles in megacity Delhi
| Autor: | Ankita Shukla, Govind Pandey, Manoranjan Parida, Rajeev Kumar Mishra |
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| Rok vydání: | 2016 |
| Předmět: |
Pollutant
010504 meteorology & atmospheric sciences Meteorology Transportation 010501 environmental sciences Urban road Atmospheric sciences 01 natural sciences Line source chemistry.chemical_compound Megacity chemistry Dispersion (optics) Environmental monitoring Environmental science Nitrogen dioxide Air quality index 0105 earth and related environmental sciences General Environmental Science Civil and Structural Engineering |
| Zdroj: | Transportation Research Part D: Transport and Environment. 46:157-165 |
| ISSN: | 1361-9209 |
| Popis: | The study inspects the traffic-induced gaseous emission dispersion characteristics from the urban roadside sites in Delhi, India. The concentration of pollutants viz. CO, NO 2 and SO 2 along with traffic and ambient atmospheric conditions at five selected local urban road sites were simultaneously measured. A developed General Finite Line Source Model (GFLSM) was used to predict the local roadside CO, NO 2 and SO 2 concentrations. A comparison of the observed and predicted values emission parameters using GFLS model has shown that the predicted values for SO 2 , CO and NO 2 at all the selected local urban roadside locations are found to lie within the error bands of 5%, 6%, and 7% respectively. A high level of agreement was found between the monitored and estimated CO, NO 2 and SO 2 concentration data. From the study, it has also been established that the developed model exhibits the capability of reasonably predicting the characteristics of gaseous pollutants dispersion from on-road vehicles for the urban city air quality. |
| Databáze: | OpenAIRE |
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