Specifications table

Subject area	Mathematics
More specific subject area	Statistics
Type of data	Table
How data was acquired	www.cpcb.nic.in,www.epa.gov
Data format	Raw, processed and analyzed.
Experimental factors	Investigation of monitoring variability and forecasting
Experimental features	Air quality Index assessment of PM2.5 monitored by US EPA and CPCB
Data source location	R. K. Puram, India
Data accessibility	www.cpcb.nic.in, www.epa.gov
Related research article	L. Zhang, J. Lin, R. Qiu, X. Hu, H. Zhang, Q. Chen, H. Tan, D. Lin, J. Wang, Trend analysis and forecast of PM2.5 in Fuzhou, China using the ARIMA model, Ecol. Indic. 95 (2018) 702–710.