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| Kathmandu, Wednesday August 06, 2003 Shrawan 21, 2060. |
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Air quality remains within
respirable limit in the Valley
Post Report
KATHMANDU, Aug 5 : With most days of the last
week (July 27 to August 2) wet, the quality of air at Putalisadak and Patan areas came
down to respirable level again. The quality of air at the places had deteriorated to
unhealthy level in the previous week.
To the happiness of the people residing at
Thamel, Bhaktapur, Kirtipur and Matsyagaon localities, the quality of air that they inhale
continued to remain within respirable limit even during the last week.
The air quality monitoring stations at the
places have been showing a considerable improvement in the air quality ever since the
advent of this year’s monsoon on June 16.
According to the weekly pollution results
provided by the Ministry of Population and Environment (MoPE), the level of fine
particulate matter with diameter less than or equal to 10 micro-meter known as PM10, as
monitored by the air quality monitoring stations at Putalisadak and Patan slightly crossed
the national standard for PM10. The National Ambient Air Quality Standard (NAAQS) for the
pollutant is 120 micro-gram per cubic meter.
A major and most alarming solid pollutant in the
air of the Kathmandu Valley, PM10 is hazardous to human health as it is very small and
remains suspended in the air for a long time and easily goes into human lungs. The rising
level of the pollutant has been a serious concern in the valley.
Hospital studies have already shown growing
health damage to the people of the valley. Long exposure to pollutant is more lethal to
the patient of asthma, respiratory diseases, the old and the young alike.
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