Sponge iron industry is set to drive future steel production of India. But poorly regulated factories are highly polluting. Protests are frequent, often turning violent. Down To Earth reports on the status of the sponge iron industry and its challenges.

The Central Pollution Control Board (CPCB) has fumbled in answering a critical question on carbonyl and methane emissions from vehicle exhausts: which pollutes less

This paper mainly deals with the measurement of air quality by observing the concentration of pollutants in the atmosphere namely suspended particulate matter, NOx and SO2 at five different selected locations in Lucknow city. The locations for the study have been chosen on the basis of land use pattern. Each pollutant has been observed by 12 hours from 8:00 to 20:00 hours. According to air quality scale, the air quality status has been measured at each location and zone. From the study it is found that the residential zone has highest air quality index in comparison to other zones.

The present study deals with the quantitative effect of vehicular emission on ambient air quality during May, 2006 in urban area
of Lucknow city. In this study, SPM, RSPM, SO2 , NOx and 7 trace metals associated with RSPM were estimated at 10 representative