Hamid Reza Pourkhabbaz; Mitra Cheraghi; Saeideh Javanmardi
Volume 12, Issue 2 , July 2014
Abstract
Lead (Pb) is an unnecessary element for human body, so existence of a very limited amount of this metal in the body causes very serious disease. One of the main ways that lead can enter to human body is the consumption of contaminated seafood which consequently cause lead accumulation in tissues. Hence, ...
Read More
Lead (Pb) is an unnecessary element for human body, so existence of a very limited amount of this metal in the body causes very serious disease. One of the main ways that lead can enter to human body is the consumption of contaminated seafood which consequently cause lead accumulation in tissues. Hence, in this study, the human health risk due to consumption of Barbus grypus in Arvand River, was investigated by measuring the concentration of lead in muscle samples. In this case, a total of 30 fresh fishes were collected from six station in Arvand River (located in Khuzestan province, Iran). Samples of tissue were digested with acid, thus concentration of lead was measured using atomic absorption spectrophotometer. Overall, the results indicated that lead level in the muscle of B. grypus was higher than standard level of international organization such as FAO, WHO, NHMRC, and UK (MAFF). Average lead concentration in the muscle of Barbus grypus was 4.82 μg/g wet weight (16.61 μg/g dry weight). According to calculation of lead concentration and determination of limit value of fish consumption, there is cautions about consumption of B.grypus particularly in pregnant women and children. Accordingly, taking the Arvand river fish species, two times a month is recommended. However, the consumption of the B.grypus cannot cause serious threat to the human, if fish consumption occurs on permitted dosage.
Ali Reza Pourkhabbaz; Hamid Reza Pourkhabbaz,; Saeideh Javanmardi; Mohammad Javad Amiri
Volume 11, Issue 3 , October 2013
Abstract
The rapidly expanding urban areas of the world constitute an environmental challenge for the 21st century that requires both new analytic approaches and new sources of data and information. Ecological Planning with multi-criteria decision making is a process that evaluates the alternative land uses in ...
Read More
The rapidly expanding urban areas of the world constitute an environmental challenge for the 21st century that requires both new analytic approaches and new sources of data and information. Ecological Planning with multi-criteria decision making is a process that evaluates the alternative land uses in relation to its environmental and socioeconomic surroundings, with the purpose of manage the natural resources, preserve the ecosystems and solve or diminish possible environmental conicts. The objective of this research is to determine an ecological capability of urban development by using Fuzzy Logic Model (FLM) in GIS and IDRISI environments for the south zone of Centeral Alborz. This evaluation incorporated ecological factors in the region, such as physical factors (Topography, Elevation, Slope, Soil, Geology, Precipitation, Temperature) and biological factors (Vegetation density and Conservation areas) affecting in urban development land use. First, Urban land-use was categorized according to the classes of ecological word model in Iran, such as suitable, relatively suitable and unsuitable. Then, Multi-Criteria Decision Making (MCDM) was performed to evaluate ecological suitability of the development for each class, according to appropriately measured and weighted factors and a suitability map for the classes was developed using an algorithm that combines factors in the integrated fuzzy method of Weighted Linear Combination- Analytical Hierarchy Process (WLC-AHP). The results indicated that MCDM with FLM has high functionality for environmental evaluation of urban development .
