AIR POLLUTION IN ASIA Dr. Ashok Kumar, P.Eng. Professor & Chairman Department of Civil Engineering The University of Toledo
COMMON AIR POLLUTANTS
Early 1990’s, SPM-Comparison Across Cities (Source: UNESCAP 2000) Annual Avg. (ug/m3)
Air Quality Levels Source: Information collected from national and local government agencies through CAI-Asia network, 2003, detailed sources available from CAI-Asia Secretariat SO2 NO2 SPM PM10 SPM Limit = 90 µg/m 3 (WHO, 1979) PM 10 Limit = 50 µg/m 3 (USEPA, 1997) SO 2 Limit = 50 µg/m 3 (WHO, 1999) NO 2 Limit = 40 µg/m 3 (WHO, 1999)
FACTORS INFLUENCING POLLUTION
POPULATION GROWTH
POPULATION DISTRIBUTION
INCREASED VEHICULAR TRAFFIC
ECONOMIC GROWTH
POLLUTION TRENDS China India Sri Lanka
Trends - China
Trends - India
Changes in RSPM levels Delhi (ug/m 3 ) Kolkata (ug/m 3 ) Mumbai (ug/m 3 ) Hyderabad (ug/m 3 ) Chennai (ug/m 3 ) Average Average Reduction75 (29%) 66 (34%) 59 (42%) 3 (4%) 10 (14%)
Trends – Sri Lanka
CONTROL MEASURES Technology-Based Regulations –Hybrid Vehicles –Fuel Cell Vehicles –Hydrogen-Powered Internal-Combustion Engines –Ultra-Low Sulfur Fuels –Alternative Fuels Economic Instruments –Emission Trading –Congestion Pricing Policy Implementation
TECHNOLOGY IMPLEMENTATION
1328 industries closed or relocated in Lower S in diesel and other industrial fuel National Standard (Residential) Change in monitoring equipment ! Effects - India
Per Capita Income Pollution
Environmental Effects of Globalization A failure to account for environmental and social degradation A potential reduction in environmental and social standards Specialization which increases monocultures and decreases diversity Environmental damage caused by long-distance transport Export-oriented growth which exacerbates all of the above. Incompatibility with some environmental protection measures Increasing inequality between rich and poor countries, rich and poor people, and women and men, all of which also exacerbate poverty and environmental degradation