NEWS

A recent study conducted by CSTEP has revealed highest PM2.5 in South zone, Rajarajeshwarinagar in Bengaluru

WHAT IS IN THS STUDY

• Across Bengaluru Urban and Rural districts, the annual mean PM2.5 ranged between 35 and 55 μg/m3
• Rajarajeshwari Nagar and South zone recorded the highest PM2.5
• CSTEP used satellite-based products to study the spatial patterns, hotspot areas, and rural–urban contrasts in PM2.5 in the Delhi-NCR, Kanpur, and Bengaluru regions
• The study was done for 2019.
• 5 in Delhi-NCR and Kanpur region was found to be three times higher than that of the Bengaluru region
• 5 hotspots were identified over a lesser spatial extent in the Bengaluru region compared to that of Delhi-NCR and Kanpur regions.
• 5 hotspots were also identified in Greater and Rural Bengaluru regions. These coincided with stone-crushing units and open biomass burning areas

WHAT IS PM2.5

• Tiny pollutant suspended in the air
• Size of less than or equal to 2.5 microns
• Causes several adverse effects to human health and climate
• Major environmental issue in the Indian sub-continent