RESUMO
The concentration of heavy metals in drinking water is very important. To to evaluate the chemistry of some heavy metals in surface drinking water of Dakahlia Governorate, Egypt. 51 surface drinking water samples were collected from the main surface water stations and compact units in October 2009 and analyzed chemically. 26 water samples were analyzed by atomic absorption spectrophotometer for iron, manganese, lead, nickel, chromium, zinc, copper, cobalt, aluminum, and cadmium concentrations. Aluminum concentration was slightly high in water sample of Bosat network. Cadmium concentration in samples of up-streams of shark and Mit-Khamis stations, networks of Mit-Antar, Demera, Bosat, Bilqas, El-satamony, EI-Gamalia, Mit-asim and Bilqas station exceeded the permissible limits of Egyptian Ministry of Health [EMH, 2007] and World Health Organization [WHO, 2008]. The nickel concentration in the network samples taken from Shoha, Bosat and EI-Gamalia as well as up-stream of Bosat station exceeded the permissible limits. Also, lead concentrations of the network samples of Shoha, Mit-Antar, Demera and Nabaru exceeded the permissible limits. Regular chemical analysis of surface drinking water is required. Since these heavy metals are most likely originate from steel, plastics and batteries industries working in the region, we believe that activities of these industries must be stopped or at least limited in urban zones
RESUMO
Drugs and substances abuse in patients with refractor epilepsy were investigated in this study which includes 924 patients with intractable epilepsy were studied for serum levels of antiepileptic drugs and for drugs and substances abuse. Positive results for abuse were detected in 246 patients [26.62%], 56.5% of them were in the age group 20 - 30 years. Males outnumbered females with a sex ratio 1.46: 1. Cannabis was the first abused drug as it was detected in 29.27% followed by opiates in 21.95%, alcohol in 17.88%, benzodiazepine in 16.26%, tricylic in 8.54%, barbiturates in 6.1%. So, a screening test for drugs and substances abuse must be done in cases with resistant epilepsy even if patients deny the use of them