03 April 2008

Thursday, April 03, 2008By Ali Raza
LAHORE : A LARGE number of Lahorites are suffering from serious health hazards, especially diseases relating to eyes, lungs and skin, due to increasing level of air pollution, especially Ozone (O3), which continues to emerge as one of the major pollutants in the provincial metropolis during the month of March 2008.
Weekly air quality report of Environment Protection Department (EPD), Punjab, revealed shocking facts on the situation of air quality in the provincial capital. As per report, level of different kinds of pollutants increased in different times, which means that the atmosphere of the city is polluted 24 hours a day.
There are four major air pollutants i.e. NOx, SO2, Respirabe Dust (PM10) and Ozone (O3). As per department’s data, the level of PM10 is about 531.76 per cent more than the international standards. According to WHO Guidelines, the level of PM10 should not be more than 25 ug/m3 in 24 hrs but, in Quaid-e-Azam Town, the level was 157.94.
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Deadly particles’ killing 1,250 Lahoris each year
By Noshad Ali
LAHORE: Air pollution has increased to such an extent in Lahore that an incalculable number of people fall victim to it each year.
More than 63,000 people die each year in Lahore, of whom around 1,250 die because of air pollution which is also responsible for various chronic diseases, especially asthma.
According to the Environment Protection Agency (EPA), particulate matter includes both solid and liquid droplets found in air, emitted by man-made and natural sources. The droplets then react in the atmosphere to form particles of various sizes. Particles less than 10 micrometers (PM10) have the most damaging effect because they can be inhaled and they start accumulating in the respiratory system of human beings. Particles less than 2.5 micrometers in diameter are called fine particles and their sources include all types of combustion and some industrial processes. Particles with diameter between 2.5 and 10 micrometers are coarse and their sources include crushing and grinding operations and dust. Other harmful elements of air pollution are sulphur dioxide (SO2), nitrogen oxide (NOx) and carbon monoxide (CO).
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