A5079570020- Marine and coastal ecosystems
- Heavy metals in environment
- Water Quality and Pollution Assessment
- Water Quality Monitoring and Analysis
- Marine Biology and Ecology Research
- Groundwater and Isotope Geochemistry
- Air Quality Monitoring and Forecasting
- Geochemistry and Geologic Mapping
- Odor and Emission Control Technologies
- Adsorption and biosorption for pollutant removal
- Pesticide Residue Analysis and Safety
- Atmospheric and Environmental Gas Dynamics
- Land Use and Ecosystem Services
- Air Quality and Health Impacts
- Heavy Metal Exposure and Toxicity
- Nanomaterials for catalytic reactions
- Heavy Metals in Plants
- Oceanographic and Atmospheric Processes
- Hydrology and Watershed Management Studies
- Radioactivity and Radon Measurements
- Environmental Chemistry and Analysis
- Soil erosion and sediment transport
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and coastal plant biology
Jahangirnagar University
2020-2024
Southern Cross University
2023-2024
Monitoring of heavy metal content in commonly consumed vegetables is high priority for food safety, and public health risk assessment. Vegetables were collected from industrial, non-industrial, arsenic contaminated region one popular vegetable markets Bangladesh analyzing metals (As, Cd, Pb, Cu Zn) using Atomic Absorption Spectroscopy (AAS) with standard digestion procedure. Results showed significant variations among most cases the (except some revealed several times higher concentrations...
Antibiotics, one of the significant emerging contaminants, are intensifying their continual spread out into environment and affecting human health ecosystem in developing country Bangladesh. This study characterizes widely used fluoroquinolone (FQ) antibiotics, formulates method to spectrally distinguish them from ubiquitous, important reactive, adsorbent, altering catalytic macromolecule humic substances (HS), further quantifies using fluorescence spectroscopy. The presence identical...
This study aimed to evaluate the physicochemical properties and characteristics of fluorescent dissolved organic matter (FDOM) in Dhaleshwari River, located peripheral Dhaka district, Bangladesh. The River was selected as area due presence a tannery industrial estate various industries discharging effluents surrounding areas. socioeconomic ecological significance river is highly critical locality. Water samples were collected dry season for pH, electrical conductivity (EC), salinity, total...
Abstract Bottled drinking water of numerous brands from different countries, including Bangladesh, Malaysia, Australia, India, Singapore, Norway, Japan, Vietnam, and Taiwan, were studied using three‐dimensional fluorescence (excitation–emission matrix, EEM) spectroscopy multivariate parallel factor analysis (PARAFAC) model. Fluorescent‐dissolved organic matter (DOM) components such as microbial processed tyrosine‐, fulvic acid (M)‐, tryptophan‐like had maximum intensity/concentration at...
• Fluorescence characteristics of rainwater DOM shows high seasonal variation. Variability link to industrial and urban activities. Urban contains DOC whereas rain has fDOM. Significant correlation between fDOM atmospheric gases indicates similar sources. Fluorescent dissolved organic matter (fDOM) was characterized seasonally in one the most polluted countries world, Bangladesh, using excitation-emission matrix (EEM) fluorescence spectroscopy Parallel factor analysis (PARAFAC). EEM PARAFAC...
The Ganges and the Brahmaputra, two major rivers in Bangladesh, contribute loads of dissolved organic matter (DOM) into Bay Bengal. composition, sources, availability, seasonal heterogeneity DOM these are thus very important to know about biogeochemical cycles, fate, ecological environmental aspects before discharge In this study, was characterized downstream reaches Brahmaputra their confluence with each other. concentration oxygen decreased pre-monsoon monsoon both due increased...
Abstract This study aims to identify continuous water quality changes and fluorescence properties from urban rivers marine zones. Various types of natural anthropogenic sources derived dissolved organic matter (DOM) have been identified in this study. These include soil‐derived DOM, plant remnants, soluble particles produced when material partially decomposes is released by microorganisms, such as bacteria, algae, plants. DOM was characterized using a three‐dimensional excitation–emission...
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...
Abstract This study investigates pollution levels, source apportionment, ecological and human health risks associated with toxic metals (Pb, As, Hg, Cr, Cd) in road dust from the most populated Dhaka city a connected major highway Bangladesh. The mean concentration of Pb, Cd were 1.3, 29.3, 13.2 times higher than their corresponding background values spatially uneven distribution all over area. Metal indices, geo-accumulation index (I geo ), NIPI, PI, indicated extreme contamination at many...