Background: Nowadays, an accumulation of heavy metals in the environment is one the
most important consideration in the world. Heavy metals due to their chemical stability, low …

Background: The heavy metals include two types of necessary and unnecessary elements
which are significant in eco-toxicology. These elements have high stability and can generate …

Background and purpose: Heavy metal pollution is among the most serious environmental
issues that is caused directly or indirectly through human activities or natural sources. Alagol …

Background and Purpose: The heavy metal pollution and its fractionations in the surface
sediments of Darreh-Morad Beyg River, Hamedan City were monitored for Cd, Cr, Cu, Fe …

Anzali Wetland is one of the most important international wetlands located on the southern
shore of the Caspian Sea. This wetland is habitat to valuable fish, aquatic animals and birds …

Background: The pollution of aquatic ecosystems with heavy metals has always been a
major concern for the aquatic organisms and human health. Measuring the levels of …

Background: Sediments in marine environment have a large capacity in binding with heavy
metals; therefore, they are potential pollutants of water resources. The Anzali Wetland …

Background and purpose: For environmental protection, public health, and pollution control,
we must have precise information about the extent of pollutants, especially, heavy metals in …

Abstract Background and Objectives: Anzali Wetland is one of the most important aquatic
ecosystems of Iran which is located in south-west of the Caspian sea. This Wetland provides …

Background: Heavy metal contamination of wetland waters can adversely affects human
health. Methods: The Arsenic (As), Cadmium (Cd), Cobalt (Co), Chromium (Cr), Copper …