الفهرس 
CarbondioxidesOnly 14 pages are availabe for public view
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Abstract
This has been done by using ISO clabirates apparatus for measurement B-5 of ambient carbon monoxides (Testo, made in Germany).
Air samples were collected within one hour by the apparatus then we recorded it and at the end we added up all the reading and divided it by the number of readings so we obtained the mean level of CO in this area.