EGU21-9933, updated on 04 Mar 2021
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Air quality at open-cast coal mining regions at Hunter Valley, Australia and Ramagundam, India

Harsh Kamath, Chanchal Chauhan, Sameer Mishra, Aariz Ahmed, and Raman Srikanth
Harsh Kamath et al.
  • National Institute of Advanced Studies, Energy and Environment Programme, Bangalore, India (

The upper Hunter Valley region in New South Wales (NSW), Australia has several open-cast coal mines, which supply coal to two large thermal power plants (TPPs) in the area, beside the export market. Long-term Particulate Matter (PM) pollutants and meteorological measurements are recorded by a network of 13 NSW government-owned continuous monitoring stations in the upper Hunter Valley region. The Ramagundam area in the state of Telangana, India has similar pollution source characteristics (coal mines and TPPs), but PM pollutant measurements are largely carried out with manual monitoring stations at 24-hour intervals, not more than twice a week. As the coal and overburden excavation from open-cast coal mines and stack emissions from TPPs lead to local PM pollution, we have used MODIS-MAIAC Aerosol Optical Depth (AOD) at 550 nm and Normalized Difference Vegetation Index (NDVI) along with the local meteorological data such as ambient temperature, relative humidity, wind speed and direction to model PM10 and PM2.5 at the upper Hunter Valley and Ramagundam regions. Our model can explain about 60% of variation in PM10 (p-value < 0.0001), while a similar model is able to explain about 75% of the variation in the PM2.5 (p-value < 0.0001). We will extend our model results from Hunter Valley to Ramagundam area and comment on the potential of using geospatial products such as AOD as a proxy to ground-based pollution measurements in developing countries such as India, where pollution data is scarce.

How to cite: Kamath, H., Chauhan, C., Mishra, S., Ahmed, A., and Srikanth, R.: Air quality at open-cast coal mining regions at Hunter Valley, Australia and Ramagundam, India, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-9933,, 2021.

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