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Effect of Reduced Traffic Density on Characteristics of Particulate Matter Over Delhi


Affiliations
1 Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
2 School of Environmental Sciences, Jawaharlal Nehru University, New Delhi - 110 067, India
 

Road rationing policy, implemented in Delhi from 1 to 15 January 2016, reduced the traffic density. This particular event serves an opportunity to study the effect of reduced traffic density over particulate matter (PM) characteristics. The mean PM2.5 and black carbon (BC) mass concentration before, during and after the event were observed as 163.51 μg/m3 and 14.01 μg/ m3, 186.98 μg/ m3 and 19.87 μg/m3, 197.45 μg/m3 and 17.79 μg/m3 respectively. During the first week (1–7 January 2016), high PM2.5 mass concentration was observed while in the second week (8–15 January 2016), the concentration was relatively low. The concentration of elements like P, Cu, As and Pb was observed to be minimum during the event.

Keywords

Black Carbon, Elemental Composition, PM2.5.
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  • Effect of Reduced Traffic Density on Characteristics of Particulate Matter Over Delhi

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Authors

Vikas Goel
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
Sumit Kumar Mishra
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
Ajit Ahlawat
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
Chhemendra Sharma
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
N. Vijayan
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
S. R. Radhakrishnan
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India
A. P. Dimri
School of Environmental Sciences, Jawaharlal Nehru University, New Delhi - 110 067, India
R. K. Kotnala
Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi - 110 012, India

Abstract


Road rationing policy, implemented in Delhi from 1 to 15 January 2016, reduced the traffic density. This particular event serves an opportunity to study the effect of reduced traffic density over particulate matter (PM) characteristics. The mean PM2.5 and black carbon (BC) mass concentration before, during and after the event were observed as 163.51 μg/m3 and 14.01 μg/ m3, 186.98 μg/ m3 and 19.87 μg/m3, 197.45 μg/m3 and 17.79 μg/m3 respectively. During the first week (1–7 January 2016), high PM2.5 mass concentration was observed while in the second week (8–15 January 2016), the concentration was relatively low. The concentration of elements like P, Cu, As and Pb was observed to be minimum during the event.

Keywords


Black Carbon, Elemental Composition, PM2.5.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi2%2F315-319