1. Abdel-Shafy HI, Aly RO (2002) Water issue in Egypt: resources, pollution andprotection endeavors. CEJOEM 8:3–21
2. Abdel-Azeem AMTS, Abdel-Moneim MEI, Hassan MAA, Saleh MY (2007) Effects of long-term heavy metal contamination on diversity of terricolous fungi and nematodes in Egypt—a case study. Water Air Soil Pollut J 186:233–254
3. Akoto O, Ephraim JH, Darko G (2008) Heavy metal pollution in surface soils in the vicinity of abundant raiway servicing workshop in Kumasi, Ghana. Int J Environ Res 2:359–364
4. Aksu AE, Yaşar D, Uslu O (1998) Assessment of marine pollution in Izmir Bay: heavy metal and organic compound concentrations in surficial sediments. Transl J Eng Environ Sci 22:387–415
5. Allison LE, Moodie CD (1965) Carbonate. In: Black CA (ed) Methods of soil analysis, Part 2. Am Soci Agron Madison, WI:1379–1396