Investigation of Air Quality in the Industrial Area North Cairo
Alia, A. Shakour1, Nadia, M. El Taieb1, Salwa, K.
Mohamed1 and Ashraf, S. Zakey2
1 Air Pollution Department, National Research Center Dokki,
Cairo, Egypt
2 Egyptian Meteorological Authority
Corresponding author: Prof. A. A. Shakour
National Research Center, Air pollution Dep., Dokki, Cairo, Egypt
CEJOEM 1998, Vol.4. No.2.:192-204
Key words:
Industrial area, SO2, NO2, NH3, and
O3
Abstract:
This study is a part of a research project aimed to evaluate the role
of the industrial activities on the air quality in the industrial area
north Cairo. Sulphur dioxide, nitrogen dioxide, ozone and ammonia were
measured for one year (Sept. 1994–Aug. 1995) in the atmosphere of Shoubra
El-Kheima. The obtained data revealed that the atmosphere of the investigated
area is highly polluted with these inorganic gases. The annual mean concentration
of SO2 was about twice the Egyptian air quality standard set for SO2 (60
µg/m3). Ozone concentration ranged from 10 ppb to 1320 ppb showing
that photochemical smog formed 87% of measured samples. Nitrogen dioxide
and ammonia levels exceed the recommended concentration in many countries.
It can be concluded that the industrial and residential activities beside
the traffic emission are the major sources of these gases in the atmosphere
of this area. Also, the existence of these gases in presence of sunlight
causes the formation of secondary pollutants, like the ozone.
Received: 11 august 1997
Accepted: 05 January 1998
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Posted: 15 November 1998