Sustainable City Design

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First off, this service does not write your papers...however, I can offer germane direction in this area and/or give assistance in correcting an already written paper. However, I think this will give you sufficient fodder to create a one-pager.

Let us look at the variables that can contribute to degradation of air quality in approximate order of import. ( Keep in mind that urban smog is a phototlytic by-product of mixed pollutants):

1) Transportation - personal transport (cars, trucks, motorcycles) and public transport (buses, etc) that run on internal combustion technologies are *the* major contributors to poor air quality in urban environments. Pollutants include S-oxides, N-oxides, particulates, CO, CO2. Diesel & alcohol combustion may also produce significant levels of aldehydes.

2) Combustion of fossil fuels for heating, power generation - ~40% of US power is coal-fired. While many plants have scrubbers, often older plants are exempt (grandfathered in), or "trade" pollutant permits with other entities. Pollutants include S-oxides, N-oxides, particulates, CO, CO2, certain metals in coals as well (Se, Hg).

3) Industrial processes - aside from burning fuel for heat / power (such as waste for water heating or power co-generation such as above in 3), industry puts out a variety of ...