Skip to main content
Log in

Measurements of surface ozone and its precursors in different microenvironments of coastal Indian metropolis of Mumbai

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

Measurements of surface ozone (O3) and its precursors (oxides of nitrogen (NOx)), carbon monoxide (CO), and volatile organic compounds (VOC) have been carried out over a coastal city Mumbai (19.07° N, 72.87° E), from January 2016 to December 2017. This study aimed to understand the diurnal and seasonal variation of O3, NOx, CO, and VOC and meteorological parameters at different city micro-environments. During the observation period, O3, NOx, CO, and VOC concentrations were high in the winter season, and the lowest was observed during the monsoon season over all the types of microenvironments. At all sites, the concentration of O3 was found to increase from 10:00 h and peaked between12:00 and 15:00 h; after that, it gradually decreased. In contrast, NOx depicts a reverse pattern, and the amplitude of diurnal variation was the least in the monsoon month. A high level of O3 was observed at the coastal backgrounds site, whereas the minimum level was found in the heavy traffic area. O3 concentrations were positively correlated with CO, NOx, and VOC. The inverse relation observed between O3 and relative humidity and wind speed indicated that the major photochemical paths for removal of O3 become effective in higher humid conditions, and high wind speed disperses the pollutants. The rate of change of O3 [d(O3)/dt] was highest during the winter season and lowest in the monsoon overall microenvironments. This distribution of O3 and precursors can be used for the implementation of emission control policies in megacities.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

Availability of data and materials

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Code availability

Not applicable.

References

Download references

Acknowledgements

The authors are grateful to the Director, Indian Institute of Tropical Meteorology, Pune, for the encouragement and support given to carry out this work. The authors also extend thanks to SAFAR for the data generation that has been used in this work.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to N. Korhale.

Ethics declarations

Ethics approval

Not applicable.

Consent to participate

Not applicable.

Consent for publication

Not applicable.

Conflict of interest

The authors declare that they have no competing interests.

Additional information

Editorial responsibility: Ta Yeong Wu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Korhale, N., Anand, V., Panicker, A. et al. Measurements of surface ozone and its precursors in different microenvironments of coastal Indian metropolis of Mumbai. Int. J. Environ. Sci. Technol. 20, 2141–2158 (2023). https://doi.org/10.1007/s13762-022-03910-9

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-022-03910-9

Keywords

Navigation