A total of 50 wells water samples were collected from 10 wells in Abu Ghraib site/ Baghdad for detection of coliform, fecal coliformand and pseudomonas aeruginosa bacteria, and the pollution of toxic ions (No3-, B+3, pb+2 and Cd+2 ) in wells water. Results showed microbial pollution by coliform, fecal Coliform bacteria in wells water when using presumptive, confirmed and complete tests, P. aeruginosa bacterium was isolated and identificated on Cetrimide Agar media, estimated the Most Probable Number (MPN) of coliforms and P. aeruginosa, results showed difference in mean of (MPN) of wells water. Most of toxic ions concentrations were low comparing with the recommended hygienic standards from the World Health Organization (WHO). Wells water was contaminated by coliforms and P. aeruginosa bacteria that affected the quality, but chemical pollution don't found in wells water because constrations of toxic ions lower them of (WHO) standards.
Investigation of Contaminated Bacteria and Some Toxic Elements of Groundwater in Some Wells in the Abu Ghraib Area/Baghdad
Microbial
Pollution
groundwater
Pseudomonas aeruginosa
Publication Date
Tue Feb 28 2023
Journal Name
Iraqi Journal Of Science
Photonic Crystal Fiber Pollution Sensor based on Surface Plasmon Resonance
Photonic crystal fiber sensor
Pollution sensor
Optical fiber sensor based surface plasmon resonance
Surface plasmon resonance
In this work, a pollution-sensitive Photonic Crystal Fiber (PCF) based on Surface Plasmon Resonance (SPR) technology is designed and implemented for sensing refractive indices and concentrations of polluted water . The overall construction of the sensor is achieved by splicing short lengths of PCF (ESM-12) solid core on one side with traditional multimode fiber (MMF) and depositing a gold nanofilm of 50nm thickness on the end of the PCF sensor. The PCF- SPR experiment was carried out with various samples of polluted water including(distilled water, draining water, dirty pond water, chemical water, salty water and oiled water). The location of the resonant wavelength peaks is seen to move to longer wavelengths (red shift)
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