Protective role of Ginkgo biloba on petroleum wastewater-induced toxicity in Vicia faba L. (Fabaceae) root tip cells.

The Melet is one of Turkey's economically important rivers. Most of the petroleum plants are located at fairly nearby of the river This situation is considered as main source of heavy metal pollution in the river. The present study was designed to evaluate the protective role of Ginkgo biloba (GB) on cytotoxicity induced by petroleum wastewater in Vicia faba root tip cells.

Biosorption of Cu2+ and Zn2+ by raw and autoclaved Rocella phycopsis.

The behavior of Cu2+ and Zn2+ biosorption onto raw and modified Roccella phycopsis from aqueous solutions was studied. Modification process was applied by autoclavation at 121 degrees C for 30 min. The effects of pH, initial metal concentration and biosorbent dosage were investigated.

Trace metal levels in lichen samples from roadsides in East Black Sea region, Turkey.

Objective: To determine the metal contents of lichen species from East Black Sea region of Turkey for investigation of trace metal pollution sourced traffic.

Methods: The levels of copper, cadmium, lead, zinc, manganese, iron, chromium, nickel, cobalt, palladium in lichen samples collected from East Black Sea region of Turkey were determined by flame and graphite furnace atomic absorption spectrometry after microwave digestion method. The accuracy of the method was corrected by standard reference material (NIST SRM IAEA-336 Lichen).