Research Article

Tropospheric NO2 Trends over South Asia during the Last Decade (2004–2014) Using OMI Data

Figure 9

Correlation matrix of eleven NO2 hotspots and study region with best fit curve. Pearson correlations values are also shown. All correlations are significant at the 0.01 level (2-tailed) except correlation between Karachi and the study area indicated by which is significant at the 0.05 level (2-tailed).