AIR POLLUTION IN THE CITIES
Most
cities world-wide suffer from serious air-quality problems, which have received
increasing attention in the past decade. A major probable reason for the
air-quality problems is urban population growth, combined with change in land
use due to increasing urban areas. Air quality in cities is the result of a
complex interaction between natural and anthropogenic environmental conditions.
Air pollution in cities is a serious environmental problem especially in the
developing countries. The air pollution path of the urban atmosphere consists
of emission and transmission of air pollutants resulting in the ambient air
pollution.
“Emission
of air pollutants is caused by di!erent anthropogenic processes which can be
categorised into the source groups motor traffic, industry, power plants,
trade, and domestic fuel...Hence, it follows that motor vehicle traffc seems to
be the most important motor traffic is a major source of air
pollution...As cities expand, more people will drive more vehicles over greater
distances and for longer time. Emissions of air pollutants by motor traffic
depends on diferent factors such as traffic density, driving habits or ratio of
automobiles to trucks (Fig. 2)...Dispersion and dilution of air pollutants are strongly
influenced by meteorological conditions, especially by wind direction, wind
speed, turbulence, and atmospheric stability. Topographical siting and urban
structures. Chemical reactions also depend on ambient weather conditions
because they are influenced by shortwave radiation, air temperature, and air
humidity. Along with chemical reactions, dispersion and dilution processes
result in ambient air pollution which shows concentrations of diferent
substances varying with regard to time and space..."(Mayer, H. (1999). Air pollution in cities. Atmospheric
environment, 33(24-25),
4029-4037)
Fig. 2. Schematic illustration of the air pollution path in the atmosphere
ALTERNATIVE MEASURE FOR OUR CITY
Lack of
social commitment on the levels of pollution produced by the cars and their
concentration distributed in the urban territory, requires making the pertinent
measurements and studies in order to take specific measures.
AIR POLLUTION IN THE CITIES
Most
cities world-wide suffer from serious air-quality problems, which have received
increasing attention in the past decade. A major probable reason for the
air-quality problems is urban population growth, combined with change in land
use due to increasing urban areas. Air quality in cities is the result of a
complex interaction between natural and anthropogenic environmental conditions.
Air pollution in cities is a serious environmental problem especially in the
developing countries. The air pollution path of the urban atmosphere consists
of emission and transmission of air pollutants resulting in the ambient air
pollution.
“Emission
of air pollutants is caused by di!erent anthropogenic processes which can be
categorised into the source groups motor traffic, industry, power plants,
trade, and domestic fuel...Hence, it follows that motor vehicle traffc seems to
be the most important motor traffic is a major source of air
pollution...As cities expand, more people will drive more vehicles over greater
distances and for longer time. Emissions of air pollutants by motor traffic
depends on diferent factors such as traffic density, driving habits or ratio of
automobiles to trucks (Fig. 2)...Dispersion and dilution of air pollutants are strongly
influenced by meteorological conditions, especially by wind direction, wind
speed, turbulence, and atmospheric stability. Topographical siting and urban
structures. Chemical reactions also depend on ambient weather conditions
because they are influenced by shortwave radiation, air temperature, and air
humidity. Along with chemical reactions, dispersion and dilution processes
result in ambient air pollution which shows concentrations of diferent
substances varying with regard to time and space..."(Mayer, H. (1999). Air pollution in cities. Atmospheric
environment, 33(24-25),
4029-4037)
|
| Fig. 2. Schematic illustration of the air pollution path in the atmosphere |
ALTERNATIVE MEASURE FOR OUR CITY
Lack of
social commitment on the levels of pollution produced by the cars and their
concentration distributed in the urban territory, requires making the pertinent
measurements and studies in order to take specific measures.
In the
sector of the city of Pitalito - Huila, the use for vehicles (at least those of
public service) of a gas catalyst, which controls their emission into the
environment, is mandatory. This measure must be thoroughly studied by the local
Transit and Transportation office, so that the appropriate mechanisms and
incentives for its implementation and control are created, mainly in old
vehicles, private vehicles and those that arrive on a temporary basis. to the
municipality. It is proposed as a pertinent measure that the municipality
obliges the owners and drivers of the vehicles to carry a synchronization
certificate with a validity no longer than six (6) months, which will be issued
in an authorized establishment; however, the final approval of this measure
must be sanctioned by the Municipal Council.
