نشریه پایداری، توسعه و محیط زیست
سال دوم شماره 3 (پاییز 1394)

Domestic Water Quality Index besteads users to achieve a simple concept of water quality by collecting and summarizing a lot of Data related to Different potable water quality parameters and changing them to a specified number.
At first, for preparing this Index, many different water parameters due to the hygienic effects, aesthetics, abundance, ability to be a marker, taste, sources and entrances to water, method of measurement and removal have been studied.
Some of domestic water quality parameters have been selected by Polling from experts and university professors (32 persons). Weighting factors determined for selected parameters using opinion of experts, AHP method and pair comparison method. Domestic Water Quality Index has been computed by consideration of selected parameters, weighting factors, previous studies and statistical and mathematical methods. Domestic Water Quality Index has been calculated by error analyzing method using 3 error function F1, F2 and F3.
Domestic water quality categorization has been done according to Delphi Method, assessment of different samples by experts (14 persons), classification of samples and, finally, comparing the results of Domestic WQI with BC WQI¡ DWQI and CCME WQI.

Geo-information technology offers an opportunity to support industrial development plan. Adequate geo-spatial information is a prerequisite for sustainable development. By providing such information, which serves as an important tool for decision-making in land use planning, and merging AHP technique for spatial modeling of land use suitability for industrial site selection and planning we can help provide effective information to monitoring of environmental resources and present sustainable development plan. By attention to industrial development situation in Ghazvine province. By using GIS and AHP, industrial modeling results in sustainability and development planning in this province is thus unique and essential. Accurate information on land parameters and environmental resources is essential to effective land use planning.
The article also discusses the role that geo-information and GIS by using environmental parameters play in industrial planning and management to reduce negative impacts of improper land use planning and present proper alternatives for industrial developing of Ghazvine.

Petrochemical industries with regard to their activities such as processing and waste water producing & pollutant gaseous have potentially adverse impacts on the environment. In this study, impacts of petrochemical industries are considered in Mahshahr economic special zone. According to this region, majority of petrochemical industries are constructed adjacent fiords. Therefore, these industries are affecting fiords as most important and high biodiversity ecosystems. In this study, petrochemical industries impacts are analyzed by using Analytical Hierarchy Process (AHP) method and Expert Choice software. In this method, criteria, sub criteria and choices are prioritized and weighted by using Eigenvector software. Moreover, water analyzes results, bed and sediments sampling of fiords are considered at measuring stations of surrounded and free fiords. With regard to measured results and activities essence of petrochemical industries, five water pollutants including TSS, Oil& Grease, COD, Heavy metals and four air pollutants including SOx, NOx, CO2, H2S, Particle matters are recognized as criterion environmental pollutants. Then, pollutants compared and weighted in hierarchy tree on the basis of density and their influence on environmental parameters.
Finally, Results indicate that TSS and COD with o.326 & 0.235 weights should be reduced as most important water pollutants. Also emission of SOx and NOx are known as first importance in air pollution.

This study aimed to evaluate the absorption rate of lead and cadmium in form of pine trees in Tehran. For this purpose, the contaminated sites (Azadi, Tarasht, Airports, Mimamat) and control sites (Cheetgar) were sampled during both summer and winter (July and January) from their leaves, and the concentration of lead and cadmium were measured in Tehran pine trees with using graphite furnace GBC savant AA model. Samples were performed in randomized statistical sampling with complete block design during three replications and data were analyzed by using variance and Duncan at 95% with using SPSS software. The results showed that the maximum amount of lead absorption was 1136.60 nanograms per gram in heating season and the least amount of lead absorbtion was in heating season, which related to Cheetgar station (control) and also, 155.13 nanograms per gram related to Tarasht station. The maximum amount of lead absorption was related to cold season in Tarasht station (603 ng per gram) and the least amount of lead absorbtion was related to heating season with 101.7ng per g in Cheetgar station (control). Also, the maximum amount of cadmium absorption was related to warm season with 59.10 nanograms per gram in Tarasht station, the minimum amount of cadmium absorption was related to Cheetgar station control (26/24 ng per g) and also, the maximum amount of cadmium absorption was related to cold season (70.20 nanograms per gram) and the minimum amount of cadmium absorption was related to Cheetgar station (control) (5.4 ng per g). Pollution rate reaches its maximum in winter in Tehran and deciduous trees are bare. Therefore, goal of this study investigate the association and attract in winter, which has more pollution than summer with inversion phenomenon. Consequently, Pine species can be used as a bioindicator for heavy metals like lead and cadmium.

Hanna lake in the Hanna no hunting region is one of the suitable habitats for the species of waders and waterfowl in center of Iran. This lake is one of the important remaining wetlands in Isfahan Province of Iran that annually numbers of migrating birds, use this area in their migration route.
species such as: White-headed Duck, Ferruginous Duck, Marbled Duck, Dalmatian Pelican and White-tailed Eagle, have been recorded for many different years in this habitat.
In this study, 48 number species of migratory birds and endemic waterfowl and waders were observed and counted in the different months of year. Also 42 number of another species were observed in this habitat.
With attention to diversity and density of birds in different months of year and ecological condition and existing potential in this area. So the Hanna lake may be considers as one of the internationally important wetlands and one of the Important Bird Areas. This habitat possesses 1a, 2c and 3b for criteria of Ramsar international wetlands and also it is known to have the criteria 6 of important bird area (IBA).

Nowadays Water insufficiency in Tehran is an important problem Because of increasing of population and its special climatic conditions. For this reason, we must pay attention to underground waters as a main source of water supply.
In this research, all springs located in the east part of Tehran province were identified and the springs, which have been used by Water and Wastewater Company of Tehran, were investigated. For this purpose, 20 physical, chemical parameters and 5 microbial parameters of 5 springs were assessed and were compared together.
Results show that the quality of all springs is according to conventional drinking water quality standards and there are some problems in microbial quality, which that is due to anthropogenic pollution and un-sanitation of springs.