Baby Leone
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ISLAMABAD, Jun 2 (APP): Air Quality data recorded by continuous monitoring station in five capital cities of the country confirmed presence of high concentration of suspended particulate matter. Several studies of air, water and noise has been carried out by Pakistan Environmental Protection Agency (Pak- EPA), according to Pakistan Economic Survey 2010-11.
The level of PM (particulate matter size below 2.5 micron), which is mainly due to combustion source, has reached to an alarming point (2 - 4.7 times higher than the safe limit) National Environmental Quality Standards (NEQS) for PM 2.5 is 25 microns/m3 annual average.
Figure below show annual mean value of PM 2.5 in five capital cities:
Islamabad 91.13 ug/m3, Lahore 116.51 ug/m3, Karachi 41.49 ug/m3, Peshawar 70.86 ug/m3 and Quetta 40.86 ug/m3, according to Environment Protection Agency (EPA) The level of other pollutants in the ambient air like Carbon monoxide (CO), Sulphur dioxide (SO2), Ozone (03) and Hydrocarbons (HC) are within safe limit, according to National Environmental Quality Standards (NEQS) for ambient air. Sometimes the concentration of thee gases goes higher than the safe limit at different places, but this happen for short time and give short time exposure to public.
Formation of secondary pollutants like sulphates and Environment 209 photochemical smog is a very common phenomenon.
The main causes of air pollution also include a sharp increase in number of vehicles (inefficient and outdated automotives technology, dirty fuels, absence of public transport), and uncontrolled emission of industrial units, burning of garbage and presence of loose dust because of dry climate.
Environmental standards are just not enforced in the auto industry.
Motorcycles and rickshaws due to their two stroke (2-strokes) engines are the most inefficient in burning fuel and contribute most to emissions.
Two -stroke vehicles emit inhalable particles that settled in lungs and cause respiratory diseases.
The 2-stroke vehicles industry is performing fast in Pakistan and has increased by 142.6 percent in 2010-11 when compared with the year 2000-01.
Rickshaws have grown by more than 24 percent while motorcycles and scooters have more than doubled since 2000-01.
The level of PM (particulate matter size below 2.5 micron), which is mainly due to combustion source, has reached to an alarming point (2 - 4.7 times higher than the safe limit) National Environmental Quality Standards (NEQS) for PM 2.5 is 25 microns/m3 annual average.
Figure below show annual mean value of PM 2.5 in five capital cities:
Islamabad 91.13 ug/m3, Lahore 116.51 ug/m3, Karachi 41.49 ug/m3, Peshawar 70.86 ug/m3 and Quetta 40.86 ug/m3, according to Environment Protection Agency (EPA) The level of other pollutants in the ambient air like Carbon monoxide (CO), Sulphur dioxide (SO2), Ozone (03) and Hydrocarbons (HC) are within safe limit, according to National Environmental Quality Standards (NEQS) for ambient air. Sometimes the concentration of thee gases goes higher than the safe limit at different places, but this happen for short time and give short time exposure to public.
Formation of secondary pollutants like sulphates and Environment 209 photochemical smog is a very common phenomenon.
The main causes of air pollution also include a sharp increase in number of vehicles (inefficient and outdated automotives technology, dirty fuels, absence of public transport), and uncontrolled emission of industrial units, burning of garbage and presence of loose dust because of dry climate.
Environmental standards are just not enforced in the auto industry.
Motorcycles and rickshaws due to their two stroke (2-strokes) engines are the most inefficient in burning fuel and contribute most to emissions.
Two -stroke vehicles emit inhalable particles that settled in lungs and cause respiratory diseases.
The 2-stroke vehicles industry is performing fast in Pakistan and has increased by 142.6 percent in 2010-11 when compared with the year 2000-01.
Rickshaws have grown by more than 24 percent while motorcycles and scooters have more than doubled since 2000-01.
