Shafi Mohammad Tareq

Jahangirnagar University · Department of Environmental Sciences

Monthly 24-h real-time high-resolution monitoring was conducted for 1 year to investigate the carbon dioxide (CO2) dynamics in the lower Brahmaputra River. The partial pressure of CO2 (pCO2) was observed between 136 and 1213 µatm. The pCO2 was almost 1.5 times higher during the wet season (May–October) than during the dry season (November–April). D...

The access to safe drinking water is a basic human right. Groundwater is the largest and relatively easily accessible freshwater supply on earth. In the past, groundwater was assumed to be protected from pollution by layers of rock and soil that act as filters. Recently, however, groundwater has become more and more polluted by chemicals. Drinking...

Microplastics (MPs) in surface and groundwater in Bangladesh are a significant issue. The purpose of this research was to assess the possibility of landfill leachate acting as a potential origin of MPs and to determine if the surrounding surface water (SW) and groundwater (GW) act as recipients. Furthermore, this research assessed the leachate trea...

Bangladesh has experienced numerous tragedies and casualties in the chemical industry, resulting in unparalleled losses in terms of human, social, and economic adversity, primarily attributed to the absence of effective occupational health and safety management. Despite having various sectoral legislative frameworks, there is a notable absence of a...

This study aims to identify continuous water quality changes and identify fluorescence properties from urban rivers to marine zones. Various types of natural and anthropogenic sources derived dissolved organic matter (DOM) have been identified in this study. These include soil‐derived DOM, plant remnants, and soluble particles produced when organic...

Microplastic (MP) pollution has gained considerable attention in various ecosystems; however, it has received relatively less attention in freshwater‐riverine environments than in other ecosystems. The Ganges River Delta, one of the world's most densely populated areas, is a potential source of MP pollution in the freshwater ecosystem. MPs were ide...

The aim of the study is to investigate the leaching of fluorescent dissolved organic matter (fDOM) from microplastics. In addition, this study identifies the connection between fDOM and microplastics in the aquatic environment. Three‐dimensional excitation–emission matrix identified five fluorophores, that is, peak A, M, T, T uv , and W uv , and th...

The core–sheath bi‐polymeric scaffold has been proven as an encouraging material based on the requirement of scaffolds. This study aims to prepare electrospun core–sheath scaffolds by using acid‐soluble collagen (ASC) as core material and poly(lactic acid) (PLA) or PLA‐g‐VAc as sheath material to get the most in combination from a hydrophilic and a...

Bangladesh is one of the hubs of the textile industry in the world; consequently, microfibers are an emerging threat to the aquatic ecosystem. Traditional effluent treatment plants (ETPs) might not be capable of removing most emerging pollutants like surfactants, dyes, and additives, including microfibers, and the textile industry may be a major so...

The widespread application of antibiotics in human and veterinary medicine has led to the pervasive presence of antibiotic residues in the environment, posing a potential hazard to public health. This comprehensive review aims to scrutinize the fate and impact of antibiotic residues, with a particular focus on the context of developing nations. The...

There are unexpectedly a few statistics about the socio-economic status (SES) and related socio-demographic factors (SDFs) of parents having child with ASD in Bangladesh. The prevalence of ASD might correlate with SES and related SDFs. A case-control study was conducted in 24 locations across 21 districts, encompassing all divisions, to assess the...

Plastic pollution has become a growing environmental and human health issue over the last decade. The landfill sites of developing countries receive a variety of waste, including plastic, organic, and even hazardous waste. Due to biogeochemical cycles and photooxidation, plastic wastes become microplastics (MPs), which enrich the MP abundance in la...

Microplastic (MP) pollution is an emerging environmental problem, due to its universal dispersion. In the present study, we determined the MP pollution in water, sediment, and fish samples of three different urban lakes of Bangladesh to assess the bioaccumulation of MPs from the lake environment to fish’s edible (flesh) and inedible tissue (gut), e...

This study was carried out on a negligible anthropogenically impacted Indo-Bangla transboundary river basin (Atrai, Bangladesh) to elicit radionuclides' and elemental distributions. Thirty sediment samples were collected from the Bangladesh portion of the river, and instrumental neutron activation analysis and HPGe γ-Spectrometry techniques were us...

This study focused on the distribution of microplastics in the water and sediment of the Ganges River Basin to the Meghna Estuary in Bangladesh. Thirty points were sampled from Chapainawabganj district (India-Bangladesh border) to Chandpur district (Meghna Estuary). The morphological appearances were recognized by stereomicroscope and SEM-EDX analy...

The Bay of Bengal (BoB) is the largest sink to retain discharges from major rivers and the Sundarbans Mangrove Forest in Bangladesh and upholds significant ecological and resource diversity. This study aims to characterize, and identify sources, spatial dynamics, and the fate of the principal ecological web driver that is fluorescent dissolved orga...

This study aimed to assess pollution and daily-to-seasonal dynamics of the partial pressure of CO2 (pCO2) and CO2 degassing flux concerning the fluorescent dissolved organic matter (FDOM) from tropical lakes. A membrane-enclosed pCO2 sensor and water quality multimeter analyzer was deployed to continuously record daily and seasonal variations in pC...

The initial master plan for Jahangirnagar University (JU) campus, designed by Mazharul Islam in 1968, has been disrupted and overlooked in favour of further development. This has resulted in significant changes to the university's landscape and land use and land cover (LULC). This article aims to provide an updated overview of the LULC changes at J...

Soil and water salinity are important problems in the coastal region of Bangladesh. Heavy metal also entering in the soil through various ways such as sewage sludge, fertilizers and pesticides. A pot experiment was conducted to study the variability of cadmium (Cd) availability in soil and tomato (Lycopersicon esculentum Miller) grown on to Cd-cont...

Access to safe potable water is one of the most significant challenges in an environmentally vulnerable country like Bangladesh. The presence of high concentrations of nitrate in groundwater can deteriorate its quality and pose serious health threats. A review was conducted to evaluate the current status of overall nitrate concentrations in differe...

Bangladesh is increasingly experiencing different challenges from scarce drinking water sources and health risks, explicitly or implicitly attributed to climate change. This systematic bibliographic review manually screened 47 articles under four categories, including Water and health; Climate and water; Climate and health; and Climate, water, and...

Microplastics (MPs) are ubiquitous in a freshwater, and many fishes and amphibians used to eat the plastic fragments from those water bodies by mimicking it as food. Amphibians such as frogs play an essential role in healthy wetlands ecosystem and are receiving particular attention in recent years especially because of their global decline. However...

Heavy metal pollution in water is one of the major problems all over the world, as it is highly toxic and poses a great risk to human health. To address this issue, different technologies have been studied and applied for the removal of heavy metal from water. Among the numerous treatment methods, carbon nanomaterials have attracted scientific inte...

Heavy metal pollution and its control are one of the global emerging issues of the recent decades. The removal of heavy metals from wastewater is of special concern as those are non-degradable and possess detrimental threat to public health even at ppb level. Adsorption can be an effective solution for wastewater treatment and industries can practi...

The levels of cadmium (Cd) in soil and commonly consumed tomato (Lycopersicon csculentum Miller) fruits grown around the industrial areas of Dhaka and Narsingdi districts of Bangladesh were quantified and compared the levels with FAO/WHO (2003)safety limits. According to the findings, the order of Cd concentration in soils and tomato fruits was fou...

This study has been conducted on an anthropogenically less influenced transboundary river (Atrai: Indo-Bangladesh) to comprehend the inherent geochemistry and identify potential elemental sources. In doing so, across the Bangladeshi portion, 30 river-bed samples were culled and studied by neutron activation analysis to quantify the abundances of 15...

Although microplastics (MPs) are considered as a ubiquitous pollutant, most of the studies on MPs in water have paid little attention to the analysis of the ecological risk of MPs, which is decisive in understanding the effect of MPs on the aquatic ecosystem. Therefore, to evaluate possible ecological risk, this study investigated the abundance of...

Microplastics (MPs) are emerging contaminants found in large quantities in every compartment of the environment. In Bangladesh, this is the first evidence of MPs pollution in wastewater and sludge whereas industry contributes the highest gross domestic product to the country's economy. This study investigated MP's pollution levels in wastewater and...

How do Environmental Impact Assessment (EIA) and Strategic Environmental Assessment (SEA) evolve in Bangladesh regarding legislation? Who should be in the governance of SEA in Bangladesh? What future challenges lie ahead of this transition to the SEA system in Bangladesh, and how to address them? The application context of SEA is in its early stage...

The Bangladesh-Sundarbans is the Outstanding Universal Value (OUV) articulated by UNESCO, is under different anthropogenic stress. The present study focused on the status of estuarine biogeochemistry of the dissolved organic matter (DOM) of the Bangladesh–Sundarbans using different optical methods. Four fluorophores: Peak A (230-265/408-488 nm), Pe...

The Ganges and the Brahmaputra, two major rivers in Bangladesh, contribute major loads of dissolved organic matter (DOM) into the Bay of Bengal. The composition, sources, availability, and seasonal heterogeneity of DOM in these two rivers are thus very important to know about the biogeochemical cycles, fate, and ecological and environmental aspects...

Objective: Exposure to different environmental factors appears to be widespread, detrimental to human brain development and a potential risk factor for autism spectrum disorder (ASD). We conducted a systematic review on the relationship between environmental factors and ASD in Bangladesh.Methods: This paper reviews the evidence on modifiable enviro...

In this study a rapid and short Strategic environmental assessment (SEA) conducted to find the existing policy and legal gaps of biomedical waste management regulations during the COVID-19.15 Key Informant Interviews (KIIs) were taken from the regulatory bodies, public and private medical college hospitals, corporations, civil societies, and the th...

This study investigates pollution levels, source apportionment, ecological, and human health risks associated with toxic metals (Pb, As, Hg, Cr, and Cd) in road dust from the most populated Dhaka city and a connected major highway in Bangladesh. The mean concentration of Pb, Hg, and Cd were 1.3, 29.3, and 13.2 times higher than their corresponding...

Fluorescent dissolved organic matter (fDOM) in the Brahmaputra River water was characterized using excitation-emission matrix fluorescence spectroscopy (EEM) and parallel factor analysis (PARAFAC) model. EEM and PARAFAC model identified five fluorophores (Peak A, C, M, T, Tuv) and four fDOM components (two humic-, tryptophan-, and tyrosine-like) in...

High‐frequency, paired measurements of the partial pressure of CO2 (pCO2) and dissolved O2 were combined with dissolved organic matter (DOM) characterization to investigate diurnal (7:00–19:00) and seasonal variations in CO2 dynamics in the lower Ganges River. Diurnal variations in pCO2 shifted seasonally, concurring with changes in DOM optical pro...

This study focused on the current situation and management after the end-of-life solar photovoltaic (PV) module in Bangladesh. The solar PV cells have a lifetime to serve properly, which is about 15-25 years from installation. Solar PV cell has recycling potentiality as well as the risk of producing hazardous wastes. After the end of life, the sola...

Microplastics (MPs) are formed from the breakdown of larger plastics, as well as from personal care products. Despite of having high plastic pollution on the coast of the Bay of Bengal, yet no study has been conducted on the MPs contamination in commercial sea salts from Bangladesh. It is decisive to assess at which rate humans are exposed to MPs t...

High-frequency sensor measurement was combined with dissolved organic matter (DOM) characterization to investigate diel and seasonal variations in the partial pressure of CO2 (pCO2) in the lower Ganges, near Hardinge Bridge (24°03'57.04 N, 89°01'42.85 E). Continuous measurement of pCO2 was conducted every month for 12–13 hours from May 2018 to Apri...

Supplementary Information for "Appraisal of groundwater vulnerability in south-central part of Bangladesh using DRASTIC model: An approach towards groundwater protection and health safety"

Recently water quality is one of the most emerging environmental problems in the developing countries and Bangladesh is facing critical water pollution problem. The over growth rate of population, industrialization, rapid urbanization, improper sanitation and use of agrochemicals might be deteriorated the water quality of Bangladesh. This study con...

Anthropogenic perturbations are increasing uncertainties in estimating CO2 emissions via air-water CO2 flux (FCO2) from large rivers of the Indian subcontinent. This study aimed to provide an improved estimate of the total FCO2 from the subcontinental rivers by combining calculations of the partial pressure of CO2 (pCO2) in eight major rivers with...

Groundwater intrinsic vulnerability maps are considered a promising means for forestalling groundwater resources from contamination during recent years. In the present study, the DRASTIC model was used to predict groundwater vulnerability using hydro-geochemical data and Geographic Information System (GIS). The DRASTIC vulnerability index showed th...

Chicken is one of the major protein sources and more affordable for the population of Bangladesh. Its quality monitoring is of high priority for food safety and public health risk assessment. This study determined metals (Fe, Cu, Zn, As, Ni, Cr, Sr, Hg, and Pb) in chickens from different farms of a high production area of Dhaka, Bangladesh, using a...

This study was carried out to characterize the biogeochemical and physicochemical properties of landfill leachate from Matuail Sanitary landfill site, Dhaka, Bangladesh. In addition, the study also aimed to identify the photodegradation of landfill leachate under natural sunlight. The leachate pH was slightly alkaline (7.87-8.07) with a minimum lev...

Occurrences and exposure to high levels of microbial bioaerosols such as pathogenic bacteria, fungi, fungal spores, and viruses can be linked to the deterioration of the environment and public health. This study aimed to review the results available for the unusual bioaerosol distribution scenario in the Asian regions. The amount of bioaerosol load...

Microplastic in fish from Bangladesh

Fluorescent dissolved organic matter (fDOM) was characterized seasonally in urban and industrial rainwater in one of the most polluted countries in the world, Bangladesh, using excitation-emission matrix (EEM) fluorescence spectroscopy and Parallel factor analysis (PARAFAC). EEM and PARAFAC modeling enabled identification of six fluorophores (peaks...

This study investigates pollution levels, source apportionment, ecological and human health risks associated with toxic metals (Pb, As, Hg, Cr, and Cd) in road dust from the most populated Dhaka city and a connected major highway in Bangladesh. The mean concentration of Pb, Hg, and Cd were 1.3, 29.3, and 13.2 times higher than their corresponding b...

This study focused on the current situation and management after end-of-life of the solar photo voltaic (PV) module in Bangladesh. The solar PV cells have a life time to serve properly which is about 15-25 years from installation. Solar PV cell has recycling potentiality as well as risk of producing hazardous wastes. After the end of life, the sola...

Purpose Amidst the one year of COVID-19 the amount of healthcare waste generation manifolds in Bangladesh. This article aims to rapidly assess the knowledge, attitude, practice, and perception (KAPP) towards COVID-19 related healthcare wastes among Bangladeshi healthcare professionals. Methods This research was conducted following a multi-stage me...

As COVID-19 spreads quickly across the whole of Bangladesh, the increased uses of Personal Protective Equipment (PPE) could lead to secondary environmental catastrophes. It is urgent for respective authority to maintain a safe waste disposal system to save the environment and protect public health from impending health threats.

Dumping of solid waste in the non-engineered landfill is very common in the developing countries. Among the different disadvantages of this kind of landfilling, leachate is the major concern to public health, which is a toxic byproduct generated from the landfill; and can percolate to the ground water and consequently migrate in surface water. Usin...

Despite growing research on greenhouse gas (GHG) emissions from inland waters, few systematic efforts have been made to assess the regional‐scale GHG emissions from Asian rivers under increasing anthropogenic stress. We examined factors controlling longitudinal and seasonal variations in the partial pressure of CO2 (pCO2), and CH4 and N2O concentra...

Microplastic (MP) contamination in fish species is one of the emerging environmental problems due to the proliferation of plastic pollution in the environment. The occurrence of MPs in the freshwater of Bangladesh is currently unreported, and in contrast to other counties of the world, little is known about the occurrence of this contaminant in fre...

Monitoring of heavy metal content in commonly consumed vegetables is of high priority for food safety, and public health risk assessment. Vegetables were collected from industrial, non-industrial, arsenic contaminated region and one of popular vegetable markets of Bangladesh for analyzing heavy metals (As, Cd, Pb, Cu and Zn) using Atomic Absorption...

This study investigated seasonal variability of sources and fluorescence characteristics of dissolved organic matter (DOM) in the Ganges River using three-dimensional excitation-emission matrix (3DEEM) spectroscopy and parallel factor analysis (PARAFAC). 3DEEM and PARAFAC identified five fluorophores (Peak: A, C, M, T, W) and four fluorescent compo...

The global pandemic COVID-19 culminated in escalating biomedical waste (BMW) worldwide, and the management authorities are struggling with waste treatment. Bangladesh and India are two densely populated South Asian developing countries with limited resources. Both countries face mass community transmission of the disease, with India facing severe i...

The Ganges River is one of the biggest transboundary streams in the Indian sub-continent. The significant part of this waterway channel drains one of the most densely populated areas on the planet so it is unequivocally influenced by human activities. Unprecedented high-temporal-resolution samples were collected for investigating the seasonal varia...

Fluorescence whitening agents (FWAs), popular optical brighteners, are extensively used in commercial detergents to increase brightening of washed products. This study characterizes FWA in commercial detergents and quantifies its residue in sewerage linked lakes and the Ganges River water using three dimensional excitation emission matrix (3DEEM) f...