Decreased lead concentration in Cairo atmosphere due to use of unleaded gasoline
2001
Rizk, H.F.S. | Khoder, M.I.M.
In order to reduce lead concentration in the environment of Cairo, several measures have been taken. These caused notable decrease of lead concentration in the atmosphere of Cairo. Lead concentration in suspended particulate matter was determined in two urban areas (city centre and Dokki) in Greater Cairo from winter 1998 up to autumn 1999. A comparative study of lead concentrations and their seasonal variations before (1994-1995) and after (1998-1999) changing leaded to unleaded gasoline at the city centre area showed similar seasonal trends of lead concentration, with maxima during winter and minima during summer. With the use of unleaded gasoline the lead level was also decreased in the four seasons throughout.
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