This study aimed to develop a new water quality index for routine assessment of the river water quality for drinking purpose based on fuzzy logic artificial intelligence method. Four water quality parameters were involved in light of their significance to Iraqi waters, these parameters are biological oxygen demand, and total dissolved solids, total hardness, and fecal coliform. Fuzzy logic inference system with specific rules was developed by Matlab software using Mamdani fuzzy logic Max–Min inference system method. To evaluate the performance of this new fuzzy water quality index (FWQI), tests were conducted using the Iraqi standards for drinking water quality and the 2017 data set of Tigris River within Baghdad. Results revealed the FWQI ability to assess the water quality of Tigris River during the period of the study and that the method of fuzzy inference system was a simple, valuable and applied water quality evaluation tool for human drinking water of Iraqi rivers.

Second hand represent one of the sources of illness due to environmentally related disease and injury. Used clothes are sold all over the country since they are very cheap compared with the new ones. The current study included collecting samples from different used clothing markets in Baghdad and comparing the efficiency of detergents used to reduce microbial load in the garments. The samples were adult's clothes, babies' clothes, and fabric toys. Isolation and identification of bacteria with CFU were done to determine which cloth samples carry the highest bacterial contamination and dominant pathogenic microbes associated with skin infection. Culture and biochemical methods were used for the identification. Samples were washed using two types of detergents (soap, granulated detergent) to investigate the efficiency of these detergents in reducing bacterial contamination in such clothes. The results showed that the dominant isolate bacteria in adult clothes were Staphylococcus sp. and Enterobacteriace sp. while Enterobacteriace sp., Bacillus sp. in baby clothes and Bacillus sp. in fabric toys. The results of CFU found to be the highest in baby's clothes (4x10 6 ), fabric toys (2.2x10 4 ), adult clothes (20x10 2 )respectively. Results showed that the isolated fungi were Aspergilus flavus, Aspergilus niger, Rhizopus. After washing with detergents including soap and granulated detergent, the results showed that the granulated detergent is more effective in reducing bacterial and fungal contamination than soap in all samples. This study concluded that babies' cloths are vulnmrable to contaminating with bacteria and fungi then fabric toys followed by adult clothes. It's recommended to wash second hand clothes using other methods to remove both bacterial and fungal contamination such as disinfectants then ironing.

Five samples were accrued beside the wastewater of State Electrical Manufacturing Company between Baghdad/Iraq, as much triplicates. Biological absorption can remain an high quality approach because treating severe humor wastewater beside chromium produced by using humus then manufactured activities. Many bacteria Gram-positive & Gram-negative have the ability after remove chromium and as a result redact guilty water free. In this study, the chromium biosorption the usage of single and blended subculture concerning microorganism reduced such as like Staphylococcus sp. and Pseudomonas sp. The parameters used to be measured on biosorption regarding chromium; certain as much time, pH, temperature have been examined. This study indicates so 28.5% beyond biosorbent aggregate beyond chromium combined cultures on Pseudomonas sp. hold been celebrated or Staphylococcus sp, 10.4% & 13.5% biosorption because single cultures respectively. The age in imitation of achieve most adsorption about chromium was 159 mg/l then 24 hours because mixed isolates from Pseudomonas sp. And Staphylococci. The most advantageous biomass awareness was once 0.5 mg/ml for mixed isolates, Pseudomonas sp. and Staphylococci. PH 5 used to be found according to be optimized because all ternary biomass (two unaccompanied isolates; one combined isolation) because of chromium biosorption. The most beneficial temperature was once 50 ° C because whole three structures ancient into the present work.