Background & Objectives: Ardabil city with population of about 340386 is still supplied with groundwater resource for drinking. That should have optimum quality standards in different aspects. If a drinking water physicochemical parameters levels is higher than the permitted recommended levels, they may create irreversible damages. This study intended to determine the physicoehemical parameters of drinking water in Ardabil in the year 2004.Methods: This is a descriptive cross-sectional study that has been done on 35 samples of Ardabil city drinking water resources in 2004. Most of the physicochemical parameters due to their importance and present limitations or even through technical restriction in water and wastewater laboratory of Ardabil health care centers were chemically analyzed and the results were statistically analyzed and compared by 1053 country standard methods.Results: According to the results of analyzed samples and their comparison with their related standard, it is estimated that So4, Po4 and total hardness of samples were %9, %71 & %41 respectively more than maximum acceptable level. Fluorine of samples was %57 less than the minimum recommended fluorine.Conclusion: Due to the lack of consistency in the values of So4, Po4, fluorine and total hardness of testing samples with the related standards, programming for obviation of the problems stems essential.

The aim of this investigatin is study of some biological and physico-chemical parameters of the river water into the Anzali wetland and comparison with international standards. The Samples collected in the summer and fall of 1390 and conducted monthly. Heterotrophic microorganisms were isolated in plate count agar, enterococci in kf agar and coliforms and E. coli in Chromagar ECC agar and Maccangi agar. After 48 to 72 hours of incubation at 30 ° C were identified and counted. Water physicochemical parameters were also studied and noted. Most of the logarithmic mean change in total bacteria (7.07 cfu / ml), total coliform (6.537 cfu / ml), fecal coliforms (4.96 cfu / ml) and fecal streptococci (3.649 cfu / ml) at station No.6 (river Pir Bazar) was in summer (P<0.05). In this study, NO2 mg / l range in the water stations were higher than the EPA standard limits but NO3mg / l, NH4mg / l and PO4mg / l ranges were acceptable range. The Coliform bacteria and Fecal coliform and Enterococci at many stations the standard was very high and higher than allowed. Temperature rise, urban populations grow near the Lagoon and domestic wastewater, urban and industrial pollution load in the wetland are the main reasons for microbial increase.

Objectives: This study was designed to investigate the correlation between thermodynamic parameters, ideal solubility and some pharmacokinetic parameters of the compounds.Methods: For thermodynamics analysis, 5 mg of pure drug was weighed in a aluminum pan. Thermodynamic parameters were used for determination of ideal solubility. Correlation between ideal solubility and physicochemical and pharmacokinetic parameters was investigated.Results: The results indicated that there is a linear correlation between ideal solubility and permeability with R=0.8. There are also meaningful correlation between ideal solubility and other physicochemical and pharmacokinetic parameters.Conclusion: This investigation revealed that the ideal solubility could be an appropriate parameter for prediction of drugs pharmacokinetics.

Readymade garment industries are the prominent economic sector for Bangladesh as well as scoping the huge working area for workers. But health condition of workers, drinking water quality, and proper maintenance of the environmental parameters are not well monitored. This study aims to assess the physio-chemical and bacteriological quality of drinking water provided for the garment workers in Dhaka. Ten garment industries were pre-selected for the water quality analysis and three drinking water samples from each industry were taken for further analysis. Physio-chemical parameters viz pH, TDS were measured by probe method and Total harness and Chloride of the water samples were measured by titrimetric method, respectively. Biological parameters viz Total coliforms, Fecal coliforms, Total aerobic bacteria count, Fecal streptococci, Pseudomonas spp., and Vibrio Cholerae were determined through standard procedure. Results show that pH (6.7±0.05 to 7.4±0.20), TDS (126.2±8.42 to 217.9±3.60 mg/L), Total Hardness (92±7.07 to 275±21.22 mg/L), and Chloride (8.5±0.95 to 46.5±3.27 mg/L) are within the acceptable limit. Bacteriological results show that Total coliform (1.05×103±0.071×103 to 2.16×103±0.084×103 CFU/100 ml), Fecal coliforms (145±2.828 to 249±21.213 CFU/100 ml), and Total aerobic bacteria count (2152.5±399.51 to 5540.5±185.97 CFU/100 ml) are higher than the standard limits. Pseudomonas spp. was also present in all drinking water samples but Fecal streptococci and Vibrio Cholerae were absent in all water samples. Bacteriological analysis shows that sources of drinking water are contaminated and proper maintenance and screening facilities should be improved.

Some physicochemical parameters of honey have been introduced by the International Honey Commission to evaluate its quality and origin but processes such as heating and filtering can affect these parameters. In traditional Iranian medicine, deslagging process involves boiling honey in an equal volume of water and removing the slag formed during process. The aim of this study was to determine the effects of deslagging process on parameters of color intensity, diastase evaluation, electrical conductivity, pH, free acidity, refractive index, hydroxy methyl furfural (HMF), proline and water contents according to the International Honey Committee (IHC) standards. The results showed that deslagged honey was significantly different from control honey in terms of color intensity, pH, diastase number, HMF and proline content. It can be concluded that the new standards are needed to regulate deslagged honey.

The zooplankton community structure in Eğirdir Lake (Isparta-Turkey) was studied monthly throughout an annual cycle (January 2010-December 2010). The zooplankton community was represented by three main groups: Rotifera, Cladocera and Copepoda, respectively comprised 89.62%, 7.78% and 2.60% of the total zooplankton abundance. Egirdir Lake was dominated by the rotifera Polyarthra dolichoptera in September and October, that succeeded by cladocera Bosmina longirostris species during December. Canonical correspondance analysis (CCA) was used to relate species distribution to environmental factors. The variation in the species data was significantly (p<0.05) related to a set of environmental variables (conductivity, carbonate, pH, ammonium, organic substances, dissolved oxygen, saturation of dissolved oxygen, chloride and temperature). According to the CCA result, variables were able to explain 81.9% of the total variation suggesting a significant result. The rotifer, Asplanchna priodonta, and the crustaceans, B. longirostris and Nauplius larvae seemed to be affected by environmental gradients.

The present study was conducted based on the fish species and physicochemical parameters of Egirdir Lake. Sampling was carried out monthly from January through December 2010 between 9 am and 11 am. The parameters measured were water temperature, depth, secchi disk depth, turbidity, dissolved oxygen, saturation of dissolved oxygen, pH, conductivity, chloride, hardness, calcium, magnesium, bicarbonate, carbonate, nitrate, nitrite, ammonium, sulphate, phosphate, silica, organic substance, acid power (SBV) and chlorophyll-a. Monthly sampling was performed at four stations at different depths. Water temperature ranged from 6.9±0.5oC in February to 26.8±0.4oC in August. Minimum secchi disk depth recorded was 0.5 m while the maximum was 2.4 m. Dissolved oxygen ranged from 4.2±0.2 to 12.6±0.6 mgL-1. The pH values ranged from 8.4 to 9.6. In this study, 15 fish species, belonging to eight families were identified. Among the 15 fish species recorded, Cyprinidae was the dominant family followed by Percidae (3 %). According to detrended correspondence analysis (DCA), variables were able to explain 90 % of total variation suggesting a significant result. The results showed that water temperature, dissolved oxygen and saturation of dissolved oxygen were the most important physicochemical parameters affecting fish distribution. Other pyhsicochemical parameters of this lake did not show any significant statistical differences in determining fish distribution.

This study has been carried out for determination of physicochemical parameters and concentration of Pb, Cd, Cr and Ni in Jajrood River, Parchin area. The correlation between determined parameters with distance sampling was studied, and then they were compared to standard values in drinking water and to water which is used for breeding Onchorhynchus mykiss. Sample taking was carried out in random in February 2008 for eight stations in the distance of 4km. In the above stations samples were collected with standard methods, and pH, EC, DO, and temperature values were determined by portable instruments. The other parameters were determined in laboratory. In order to study the concentration of heavy metals, flame atomic absorption was employed. The results showed that the most effective parameters in water are temperature, turbidity, total total dissolved solids, dissolved Oxygen and conductivity. The concentration of phosphate and the other soluble materials are less significant. It was found that Calcium Chloride plays the most important role in increasing the electrical conductivity of water. moving down the river conductivity increases, whereas concentration of nitrate ion increases. By comparison of physicochemical parameters of the samples to standard values in Iran, it was found that turbidity of the samples showed significant differences with standard values (P<0.01) for drinking water and turbidity, electrical conductivity, concentration of Chloride ion and nitrate ion of the samples showed a significant difference with standard values for water which is used for breeding Onchorhynchus mykiss (P<0.01). Investigation showed that concentration of Pb, Cd, Cr, and Ni were very low therefore it is suitable for drinking water and breeding Onchorhynchus mykiss.