The ten worst cities
Ahmedabad, Gujarat
Vehicles and industries are major sources of pollution. The city had 13.05 lakh vehicles in 2002
PM10, suspended particulate matter (SPM) and SO2 are major concerns
Kanpur, Uttar Pradesh
Major pollution sources: vehicles and indusry; significant pollution: electric generators
Major pollution concerns: Respirable suspended particulate matter (RSPM) and SPM
Solapur, Maharashtra
Major sources: vehicles and natural dust
Lucknow, Uttar Pradesh
Major sources: vehicles (5.4 lakh vehicles in 2002; only 1.7 lakhs in 1990)
High RSPM and SPM levels: major concerns
Highest growth in tractors; 184 per cent growth in two-wheelers
Delhi
35.51 lakh vehicles registered by 2002; only 16.37 lakh vehicles in 1990. Highest growth in passenger cars followed by buses and two-wheelers during 1990-2002
Matters of concern: CO, benzene, NO2, RSPM, PM2.5 and SPM levels
Arrested RSPM levels during 1998-2001, but still exceed desirable levels
Jaipur, Rajasthan
Major concern: vehicles (6.41 lakhs in 2002 compared to only 2.28 lakhs in 1990)
Matter of concern: RSOPMand SPM levels
Kolkata, West Bengal
Major sources: vehicles and industries (10.37 vehicles in 2002 compared to only 5.48 in 1990)
Major concern: RSPM, SPM and NO2
Highest increase of 280 per cent increase in case of autos and tempos during 1990 to 2002
March 2003: Calcutta High Court ordered that all vehicles to meet Bharat Stage II norms by March next year
Thiruvananthapuram, Kerala
Major source: vehicles (1.1 lakh vehicles registered in1992. They increased to 2.7 lakh by 2000)
Dehradun, Uttaranchal
Major source: vehicles and natural dust
RSPM and SPM levels are matters of concern
Kota, Rajasthan
Major sources: vehicles and industries
Major concerns: NO2, RSPM and SPM levels.
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