New model of long-term changes in spatiotemporal patterns of water quality across Shatt-Al-Arab River by applying GIS technique, from 1976 to 2020 DOI Creative Commons
Laith F. Lazem

Arab Gulf Journal of Scientific Research, Journal Year: 2023, Volume and Issue: 42(4), P. 1392 - 1413

Published: Nov. 11, 2023

Purpose Using a combination of the geographical information system (GIS) and Canadian water quality index (WQI), current study sought to provide long-term general assessment Shatt Al-Arab River (SAAR), focusing on its suitability for living organisms. Likewise, SPSS statistics was used develop nonlinear WQI regression model area. Design/methodology/approach The required four decades data collection some environmental characteristics river water. After that, calculate conduct spatial analysis. Eight variables in total, including temperature, dissolved oxygen, potential hydrogen ions, electrical conductivity (EC), biological oxygen demand, turbidity, nitrate phosphate, were chosen WQI. Findings Throughout periods, values varied from 55.2 79.83, falling into categories (marginal) three (fair), with sixth period (2007–2008) showing most decline. present research demonstrated that high concentration phosphates, EC values, minor changes other factors are major causes decline quality. variations ecological variables' overlap senior contributor general. Notably, using GIS conjunction has shown be very effective reducing time effort spent investigating while obtaining precise findings at lowest possible expense. Calibration validation developed showed this had perfect estimate value. Due flexibility impartiality, recommends proposed predict Originality/value Even though SAAR been subject numerous studies, is only investigation done evaluate

Language: Английский

Revealing the characteristics of biofilms on different polypropylene plastic products: Comparison between disposable masks and takeaway boxes DOI

Hexinyue Huang,

Yanqi Shi,

Zhimin Gong

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133400 - 133400

Published: Dec. 29, 2023

Language: Английский

Citations

3

Biogeochemistry of the dissolved organic matter (DOM) in the estuarine rivers of Bangladesh–Sundarbans under different anthropogenic influences DOI Creative Commons
Nahin Mostofa Niloy, Mashura Shammi, Md. Morshedul Haque

et al.

Heliyon, Journal Year: 2022, Volume and Issue: 8(8), P. e10228 - e10228

Published: Aug. 1, 2022

The Bangladesh-Sundarbans is the Outstanding Universal Value (OUV) articulated by UNESCO, under different anthropogenic stress. present study focused on status of estuarine biogeochemistry dissolved organic matter (DOM) using optical methods. Four fluorophores: Peak A (230-265/408-488 nm), M (290/414 C (365/488 and W (320/410 three fluorescent (fDOM) components (two humic-like, one detergent-like) were identified in Sundarban mangrove Rivers Excitation-Emission Matrix (EEM) Parallel Factor (PARAFAC) analyses. Among components, terrestrial-derived humic-like Component had a high intensity five samples among six Bangladesh-Sundarbans. total calculated carbon (DOC) concentration maximum Harbaria minimum Kotka Dublar char, respectively. Synchronous fluorescence spectroscopy (SFS) protein-like component besides DOM. indices described that natural fDOM from terrestrial sources, matured, autochthonous production was low. DOM relatively lower molecular size aromaticity Harbaria. However, water contained organometallic compounds much absorbance at 254 nm wavelength. low energy more π-conjugated molecules structure char Kotka. Components comparatively higher weight than other sampling stations. Mongla port hydrophobic less polar substances This will firmly add diversified notions to future research regarding forest.

Language: Английский

Citations

5

Conservation and Sustainable Utilization of Rangelands in the Hindu Kush Himalayan Region DOI
Peipei Liu, Xiaoping Jing, A. Allan Degen

et al.

CABI eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 190 - 205

Published: June 21, 2024

Language: Английский

Citations

0

Contrasting Spectroscopic Characterization and Environmental Behavior of Dissolved Organic Matter in Shallow and Deep Mine Water of Shendong Mining Area, China DOI Open Access
Chunming Hao,

Kaikai He,

Chao Liu

et al.

Polish Journal of Environmental Studies, Journal Year: 2023, Volume and Issue: 32(5), P. 4011 - 4022

Published: June 29, 2023

Underground reservoirs have been widely used to facilitate mine water storage in the Shendong mining area.Unfortunately, problems with suspended matter and soluble pollutants underground reservoir occurred.However, as indicators of environment, spectroscopic characteristics, geochemical sources dissolved organic (DOM), influence on hydrochemistry remain unclear.In this study, DOM concentration was revealed area, ranging from 0.12 mg/L 4.90 mg/L, a mean value 0.93 mg/L.EEM-PARAFAC models spectral parameter analysis identified autochthonous components terrestrial substances that dominated shallow deep DOM, respectively.Compared water, had lower degrees humification more freshly higher biological index (BIX), (HIX), E2/E3 ratio, a254 values owing emulsion oil leakage.The parameters were helpful conveniently monitoring change quality (total solids (TDS) total nitrogen (TN)) by significant correlation.

Language: Английский

Citations

0

New model of long-term changes in spatiotemporal patterns of water quality across Shatt-Al-Arab River by applying GIS technique, from 1976 to 2020 DOI Creative Commons
Laith F. Lazem

Arab Gulf Journal of Scientific Research, Journal Year: 2023, Volume and Issue: 42(4), P. 1392 - 1413

Published: Nov. 11, 2023

Purpose Using a combination of the geographical information system (GIS) and Canadian water quality index (WQI), current study sought to provide long-term general assessment Shatt Al-Arab River (SAAR), focusing on its suitability for living organisms. Likewise, SPSS statistics was used develop nonlinear WQI regression model area. Design/methodology/approach The required four decades data collection some environmental characteristics river water. After that, calculate conduct spatial analysis. Eight variables in total, including temperature, dissolved oxygen, potential hydrogen ions, electrical conductivity (EC), biological oxygen demand, turbidity, nitrate phosphate, were chosen WQI. Findings Throughout periods, values varied from 55.2 79.83, falling into categories (marginal) three (fair), with sixth period (2007–2008) showing most decline. present research demonstrated that high concentration phosphates, EC values, minor changes other factors are major causes decline quality. variations ecological variables' overlap senior contributor general. Notably, using GIS conjunction has shown be very effective reducing time effort spent investigating while obtaining precise findings at lowest possible expense. Calibration validation developed showed this had perfect estimate value. Due flexibility impartiality, recommends proposed predict Originality/value Even though SAAR been subject numerous studies, is only investigation done evaluate

Language: Английский

Citations

0